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Het conflict van de dynamische mens met statische steden en gebouwen

By Tanny de Nooy
Blandlord
July.1.2016

 

1 Juli 2016  Blandlord

Vastgoed móet flexibiliteit gaan bieden

Koen Olthuis studeerde Architectuur en Industrieel Ontwerp aan de TU Delft. Hij werkt sindsdien als architect en heeft water als specialisme. In 2007 noemde Time Magazine hem in de lijst ‘most influential people’ vanwege zijn werk in het wereldwijd groeiende interesseveld waterontwikkeling. Het Franse tijdschrift Terra Eco verkoos hem in 2011 tot een van de honderd ‘groene’ mensen die de wereld zullen veranderen. Olthuis’ architectenbureau Waterstudio en is gevestigd in Rijswijk.

“In Nederland kennen we als geen ander de mogelijkheid om van water bouwgrond te maken. We hebben een lange historie als het gaat om het bewoonbaar maken van natte gebieden. Dat fascineert me al sinds ik studeerde.” Koen Olthuis houdt zich al vijftien jaar bezig met architectuur op het water. In 2003 richtte hij Architectenbureau Waterstudio op en sindsdien is het bureau alleen maar gegroeid. Olthuis is een veelgevraagd architect, van China en Dubai tot aan de Oekraïne en de Malediven.

Olthuis is overtuigd van de vele kansen die water te bieden heeft als het gaat om te toekomst van vastgoed. “Waar het water vroeger nog benaderd werd als een vijand die in toom gehouden moest worden, is het de afgelopen twintig jaar een vriend geworden, die ongekende mogelijkheden biedt: we kunnen met z’n allen op het water gaan wonen! En ja: dat kan overal ter wereld. Van woonboten en waterwoningen tot drijvende resorts: als er water is, kun je erop bouwen.”

“Ik weet zeker dat de vastgoedwereld de komende jaren enorm gaat veranderen”, zegt Olthuis. “Kijk om je heen; de wereld is vandaag écht anders georganiseerd dan tien jaar geleden en dit is nog maar het begin! Bedrijven veranderen de manier waarop ze werken onder invloed van de mogelijkheden van internet en nieuwe technologieën en ook in onze privélevens veranderen onze behoeften onder invloed van deze ontwikkelingen. Je kunt op je vingers natellen dat wat wij verwachten van de fysieke ruimtes waarin we wonen en werken óók zal veranderen.”

De wereld om ons heen verandert
Olthuis wijst op de grote leegstand van kantoorgebouwen die zich het afgelopen decennium in veel steden ontwikkeld heeft. Hij verklaart die leegstand door de luiheid en traagheid van de vastgoedwereld. “Onze steden zijn statisch, onze gebouwen zijn statisch, maar wij, de mensen die er gebruik van maken zijn dynamisch. Je kunt de prachtigste gebouwen maken, maar omdat de wereld om ons heen zo snel verandert is dat gebouw over tien jaar al achterhaald. Als we op deze manier blijven werken zal er niets veranderen. Gebouwen die we nu ontwerpen zullen niet meer voldoen aan de dan geldende wensen en behoeften als ze gerealiseerd zijn. Vastgoed zal meer flexibiliteit moeten gaan bieden.”

“Er zijn zoveel veranderingen dat je die als architect onmogelijk allemaal kunt voorzien”, stelt Olthuis nuchter vast. “En dus is flexibiliteit bieden het enige wat je kunt doen. Vastgoed zou niet statisch moeten zijn. Vastgoed evolueert. Nu bouwen we gebouwen die zo lang staan dat ze overbodig worden en een negatief effect op steden hebben. Architecten moeten gaan ontwerpen voor verandering. We moeten gebouwen ontwerpen die snel en eenvoudig aanpasbaar zijn, zodat ze mee kunnen golven met onze veranderende wensen.” Dat meegolven mag je van Olthuis vrij letterlijk nemen: “Alles wat je op water bouwt is makkelijk aanpasbaar. Je kunt elementen snel verbinden met elkaar en je kunt andere dingen wegschuiven. Maar ook kartonbouw en panden die bestaan uit een lichte houtstructuur, piepschuim of containers zijn oplossingen die veel meer passen bij de wensen en behoeften van deze tijd. Nog geen twintig jaar geleden spuugden we erop, maar nu zien we de logica ervan in. Het biedt precies díe flexibiliteit die de vastgoedsector nodig heeft.”

Flexibiliteit is de sleutel
En flexibiliteit is ook precies wat bouwen op het water te bieden heeft, weet Olthuis. Als het aan hem ligt bouwen we over tien jaar hele steden op het water zoals dat in andere landen al lang gebeurt. “Denk bijvoorbeeld aan de RAI in Amsterdam. In feite is dat een ontzettend log gebouw, dat voor veel events die er worden georganiseerd nét te klein of veel te groot is. Ik kan me voorstellen dat je zegt: ‘we slopen de RAI en bouwen woningen op die gewilde plaats in de stad’. Met het geld dat dat oplevert zouden er drijvende expositieruimtes in de Amsterdamse havens gebouwd kunnen worden. Daar is immers plek zat! Bij een groot event laat je die nieuwe ruimtes naar een plek in hartje centrum drijven. Op die manier benut je de ruimte die je ook echt nodig hebt.” Olthuis droomt van een dynamische stad met flexibele gebouwen.“De ziel van zo’n stad wordt bepaald door vaste iconische gebouwen als kerken en universiteiten. Maar daaromheen bouwen we flexibele en verplaatsbare functies  die gedurende hun levensduur niet meer perse locatiegebonden zijn. Helemaal ingespeeld op wat de gebruiker van het gebouw op dat moment nodig heeft.”

Het aantrekken van de economie en daarmee de woningmarkt is voor Olthuis hét moment om op te roepen tot meer innovatie in de vastgoedsector. “Juist nu het weer beter gaat moeten we in durven zetten op verandering. Als we blijven doen wat we altijd al deden zullen we vroeg of laat weer tegen dezelfde problemen aanlopen. Als we met behulp van de nieuwe technologieën die we nu voorhanden hebben durven te werken, plukken we daar al heel snel de vruchten van.” De kern van Olthuis’ verhaal? “Denk na over hoe we kunnen bouwen voor ‘change’. Wat er over 10 jaar gaat gebeuren weten we niet. Bouw dus met een kortere levensduur. Van nieuwe, slimme manieren van investeren en financieren tot het durven gebruiken van nieuwe bouwmaterialen: gebouwen moeten weer van en voor de mensen zijn. Dát is de toekomst.”

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Dubai is still waiting for its floating mosque

By Neil Churchill
EDGAR daily.com
june.26.2016

 

UAE residents could pray at sea should a new developer take up the project.

Heard the one about Dubai’s underwater hotel? Of course, everybody’s heard that urban myth. But what about Dubai’s floating mosque?

Yes Dubai, not so long ago, had plans to build a mosque out at sea. In fact it was due to be completed only in March last year, with these renderings showing what it would have looked like. Judging by the images, it may have made our list of the 10 most beautiful mosques around the world.

But the local developer put the plans on hold, and the floating place of prayer never left the drawing board.

The sustainable mosque was designed by Waterstudio, a Dutch architecture firm specialising in water-based projects, and was being prepared for its client Dutch Docklands International, a Dubai-based company that also specialises in on-sea developments.

But even though the initial plan was shelved the floating mosque dream is not yet over, with the blueprints still available to be used.

“It is still on the drawing board. We are waiting for a new client to bring this project to life,” said Koen Olthuis, principal architect at Waterstudio, speaking to EDGAR.

“It was first designed for Palm Jebel Ali but when that project was put on hold by Nakheel we had to search for a new location and client. There has been a lot of interest in this project by the media and developers, but not a definitive signature yet.”

Olthuis gave a breath of oxygen to the project, suggesting it hasn’t been dismissed and that he is waiting for “the perfect user for this sustainable and water-cooled floating mosque”.

Should a new developer take up the project, the plans show that the interior of the mosque would feature several funnel-shaped, transparent columns that would not only support the roof but also allow in natural light to illuminate the inside. There would also be an open air courtyard area.

With the UAE’s history of fishing and pearl diving, it would be one of the more nostalgic modern projects the country has seen. Following the design of the Dubai Opera building, which resembles a traditional dhow, maybe this is the direction UAE architecture is heading; taking inspiration from its past.

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Has Floating Architecture’s Moment Finally Arrived?

By Rachel Keeton
Next City
October.01.2014

 

Resilient Cities

The Sea Tree, a floating natural habitat. (Photo by Waterstudio)

 

In a quiet, shady street in Rijswijk, the Netherlands, Koen Olthuis and the design team at Waterstudio are changing the world. From this deceptively nondescript headquarters, Waterstudio is designing the cities of the future. If Olthuis has his way, they will be safer, more flexible and more resilient than current cities. How will he do this? Olthuis is designing floating cities. As we sit down at the table, the busy office buzzing around us, my first question to Olthuis is direct: “How realistic are floating cities?” Olthuis grins and nods, he’s heard this question before.

Floating cities have captivated society’s imagination for centuries, from the development of Venice a millennium ago to Triton, designed for Tokyo Bay by Buckminster Fuller in the 1960s. But it wasn’t until the last decade or so that more fully realized, just-might-actually-happen sea-based urban endeavors have emerged, made more urgent by rising sea levels and rural-to-urban migration. In the last six months, Business Insider, Bloomberg and The Guardian have all run stories asking the same question: “Has the time come for floating cities?”

Olthuis dives right in: “It depends what you mean by ‘floating city.’ If you’re talking about a community of 100,000 in the middle of the sea, we’re probably about 50 years away from achieving that. If you want it to be completely self-supporting, it’s probably going to take another 20 years after that.” Bending over a roll of tracing paper, Olthuis quickly sketches a timeline of floating architecture. If we take it from the present moment, about midway on Olthuis’ sketch, hybrid cities are the next step in this evolution. Built on the edge of the existing city, these developments could easily connect to electrical and sanitation grids. “Technically, this stuff is easy to engineer: we’re already there,” says Olthuis. That makes them more straightforward to regulate and less risky for investors.

It’s the images of sparkling new cities lost at sea that have people raising skeptical eyebrows. “We’re working on a set of guidelines, a toolbox that will ultimately get us to the floating city you imagine. We’re working out these concepts that all give a glimpse of the future, but we have to find out what we need, how it works and what it adds to current urban development. We have to map out the steps to get us from today to the future and have to think about the entire process. And we need that, because if we don’t answer these questions, we get all these architects with beautiful renderings and fantastic ideas, but they don’t tell you the steps in-between and they don’t tell you why. And then your question is, but how realistic is it?”

Listening to Olthuis, it quickly becomes apparent that this scenario is actually incredibly realistic. With the technology and market demand in place, it’s political will and ownership issues that are holding development back. People have trouble imagining an urban future where city halls can be swapped for theaters on opening night, or entire Olympic villages can simply be towed around the world instead of rebuilt every four years. “Our cities today are too static. We make static cities for dynamic societies. We should be cities that can adapt to new demands and external influences. Water gives us three things: it adds more space (in old harbors, rivers, lakes), it’s safer (from storm conditions, rising sea levels) and it’s flexible. If you only construct the buildings you will use for 100 years statically, on land, and construct the buildings you will only use for 20 to 30 years flexibly, on water, then you’ve created a much more adaptable city that can respond to changing needs quickly and efficiently. If someone isn’t happy with their house anymore, they can ship it to someone who needs it in the Philippines.”

Governments are slowing starting to see the potential of this approach. If cities like New York or Tokyo build two to three percent of their development on the water, they can sell this to developers, tax the owners and create a more flexible city. Win-win. Governments are interested in this because it presents a new market for them. While most land is privately owned or already built up, by changing policies to make floating structures available the government expands its real estate. It’s a business model that is attractive because it solves multiple problems. Floating structures can reinvigorate former industrial areas like old harbors or riversides, they can adapt to extreme weather conditions better than traditional structures and they create a profit from space that is currently unmarketable.

Still, the idea of bobbing around permanently makes some people understandably squeamish. If one floating house goes up and down on waves, it may tilt: one half sits on the crest of a wave and the other end is stuck in the trough. This doesn’t happen when you start to build big enough to have a project that is always supported by multiple waves. On the water, the bigger the project, the more stable is it. In fact, floating cities are actually something that works better all around on a larger scale. If Olthuis is designing a watervilla for a single family, he has to calculate all kinds of factors to design a single, site-specific home. This ends up costing a lot more than a traditional house. If he’s designing a community of 10,000 water villas, the price is the same as a comparable urban development.

Moving functional amenities like prisons, stadiums and airports onto the water is already becoming more common as cities try to create more elbowroom for residents. Alvaro Siza’s recently completed chemical plant in Huai’An City, China, was built on the water, and BREAD Studio recently designed a floating cemetery to be rafted off the coast of Hong Kong – a city long on elderly citizens but short on space. Today there’s a floating skate park on Lake Tahoe and floating freshwater pools in the River Thames. There’s even a floating cinema in London by UP Projects, echoing Aldo Rossi’s iconic Il Teatro del Mundo from 1979.

Less whimsical but more crucial are floating developments for informal settlements located on waterfronts or in delta regions that are most vulnerable to rising sea levels. Kunlé Adeyemi’s floating school in Makoko, a picturesque shantytown in Lagos, Nigeria, will provide classroom space for 100 students. The problem with one-off projects like NLE’s floating school, according to Olthuis, is that the Lagos government has been against it from the beginning (it’s been declared illegal), and it’s not even being used because of this controversy. “If you want to really make a difference, it can’t be just one thing. It has to be a system with a sound business model,” says Olthuis.

“I think the current generation of architects really wants to help, they want to make a difference. If you tell the story of one billion people living in slums in places like Thailand, India, Bangladesh — where water is threatening those people and no one is helping them because anything that gets built can be wiped out by the next tsunami — we think, well we have to help those people. The City Apps project — retrofitted shipping containers floating on trash — is a system where we bring in floating schools, sanitation, electricity, water treatment facilities, bakeries, internet cafes, or whatever is most needed. We can connect these floating functions to the slums or disaster sites and they will slowly help upgrade these areas.

We’re investing in this ourselves, by funding the first prototype that will be deployed to Manila. We’ve started a foundation, working with Cordaid, where we lease the City Apps directly. It costs us about €50,000 to design and build a City App in a recycled shipping container, then it gets deployed to wherever it’s needed and there they construct a floating platform out of old plastic bottles and other rubbish. Ultimately, it should be a business model that provides an entrepreneurial opportunity for residents of these areas. It’s cheap — they just pay a small monthly fee — it’s safe, since it goes up and down with the water, and it provides a solution to real problems. If you don’t need it anymore, you just send it back to us and we lease it out to someone else. Next year we’ll have ten, the year after, a hundred, and it will grow to a few thousand containers around the world. Of course, it’s just a small help to these millions of people, but we hope it will act as a model and show that we can shift from giving aid to providing an opportunity for employment.”

On the other end of the inclusiveness spectrum, there are politically motivated projects like the Seasteading Institute’s Floating City. Promoted with viral videos and backed by private donors and crowd funding, these mobile communities are envisioned as new experiments in governance, giving each community total political autonomy over itself. After attending the third Seasteading Institute conference in 2012, Josh Harkinson of Mother Jones summarized the Institute as “a hacker’s approach to government with a Waterworld-esque conception of Manifest Destiny. More than a mere repository for political dreamers, it brings together engineers, scientists, and entrepreneurs of the sort one often finds in the Bay Area: techtopians who might be brilliant or delusional — or both.”

Olthuis accepts that different floating communities may have different goals. “I think we’ve only seen about 10 percent of the ideas that are actually possible in terms of floating architecture. In the next century, we’ll have thousands and thousands of new architects who can think about these possibilities.” Waterstudio calls their floating designs “scarless,” meaning they can be repositioned without leaving any trace of their presence. But the next step is to build designs like the Sea Tree, a floating natural habitat that would give small fish a sanctuary, increase the oxygenation of water, and potentially collect trash as it drifted about.

Olthuis is adamant that we have to embrace the water rather than run from it — we don’t have any other options. “Today, the momentum is there because we see the effects of climate change and we can’t be sure about our safety. We see millions of people moving to the cities and we don’t know where they will live. These issues are finally making people think twice about floating architecture. If we can convince them that it’s also financially profitable and help governments change building regulations, we’ll have a future where it’s normal to see cities that are 95 percent built on land and five percent built on water — just enough to give them the flexibility they need for an uncertain future.” It’s a revolutionary way of thinking about the city: puzzle pieces that can be reconfigured according to changing needs and desires. Olthuis’ concern with marketability and political interest makes his story much more convincing than the glossy renderings popping up on design websites. “Many architects are using technical solutions to approach this problem and just showing us the images without any information. I think a floating city is only something that works when it makes sense economically, socially, spatially — and should also look nice. It should be a normal development that is open to everyone, rather than an alien form for an elite few.” His belief in the advantages of these projects is clear, and the built examples in the Maldives, China and the Netherlands are proof of their viability. Just as it was for Buckminster Fuller 50 years ago, the floating city remains an exciting and mysterious model of urban development. Only now, it’s closer than ever. And Koen Olthuis can tell you exactly how to build it.

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Can floating homes solve the urban housing crunch?

By Ken Wysocky
BBC
June.1.2016

ON THE SURFACE, Michele Affronte and Marianne Gerrits have little in common. Affronte is a real estate agent who lives in Sausalito, California. Gerrits resides almost half-way around the world in Amsterdam.

Yet one common element ties them together. They both are urban pioneers of sorts — early adopters, if you will — of a lifestyle that could well be the wave of the future in city dwelling: Living the life aquatic aboard floating homes.

As land and housing prices in heavily populated urban areas continue to rise astronomically and housing availability becomes tighter than a first-gear hairpin curve, the floating home seems like a logical and plausible alternative for urban planners and developers. The bottom line: They aren’t making land any more, as American writer and sage Mark Twain astutely observed more than a century ago.

Other factors portend this sea change in urban living, such as rising ocean levels as a result of climate change and burgeoning populations that will strain existing land resources in urban areas. While few predict a Waterworld-ish doomsday scenario, it is interesting to note that about 44% of the world’s population lives within 150 kilometres (93 miles) of an ocean and most of the world’s megacities (2.5 million inhabitants or more) lie in coastal areas, according to the United Nations.

Moreover, the UN reports that 54% of the world’s population lives in urban areas – and that figure is expected to increase to 66% by 2050. In short, there’s a perfect storm of factors brewing that soon may force mankind to dip its collective toe into the deep end, so to speak, of offshore living.

Some cities and countries are already diving in. From Vancouver to Dubai and from Indonesia to the Netherlands, thousands of people have embraced offshore housing.

Take Affronte, for instance, who’s lived atop the waves in an eclectic community of some 480 houseboats on Richardson Bay since 1991. Her 1,800-square-foot floating home has three bedrooms, two full bathrooms, a living room, a kitchen, a dining room and a rooftop deck, plus municipal water and sewer connections.

“I planned on remodeling my houseboat, then flipping it and moving back onto land,” she explains. “But I loved it so much that I stayed. Now I’ll never leave.”

Two of the nearly 500 houseboats on Richardson Bay in Sausalito, California.

Gerrits also enjoys the aquatic lifestyle. She notes that her 800-square-foot houseboat (the second one she’s lived on), which floats on an Amsterdam canal, provides a unique perspective on the world. “You see so many different things on the water,” she says. “It’s as if a whole new world opens up to you.”

But in the dyke-protected Netherlands, aquatic living is rapidly becoming a necessity, not an idyllic lifestyle choice. For starters, about one-third of the country is under water — and threatened by rising sea levels. Moreover, the Dutch government estimates that 500,000 new homes will be needed in the next two decades to meet demand, but there’s not enough urban land to sustain that growth.

As such, it’s no wonder that the Netherlands has become a Ground Zero of sorts for floating housing. While exact numbers aren’t available, experts estimate that thousands of floating homes already exist in the Netherlands, ranging from charming converted barges to the nouveau-urban-style floating community in the IJburg district of Amsterdam, designed by Marlies Rohmer Architects and Planners.

Modern floating homes in Amsterdam’s IJburg neighborhood, a trio of artificial islands created to help mitigate the city’s housing shortage.

“Safety, (limited) space and flexibility are the three main drivers pushing us toward the water,” says Koen Olthuis, the founder and owner of Waterstudio.NL, an aquatic architectural firm based in Rijswijk in the Netherlands. A water-living visionary, Olthuis is a leading proponent of amphibious housing. In 2007, he ranked 122nd on Time magazine’s list of the world’s most influential people and in 2011, the French magazine Terra Eco selected him as one of 100 “green” people that will change the world. (He’s also written a book entitled Float! Building on Water to Combat Urban Congestion and Climate Change.)

“It’s already safer to live on water if you live where flooding is common,” he explains. “And most big cities are already densely populated and the square-metre (housing) prices are rising rapidly… and water is not as expensive as land.

“Moreover, cities are too static — every urban component we build has to stay there for 50 or 70 years,” he continues. “And as cities change, the only alternative is to demolish these things. But floating buildings can be moved and adapted…it’s all about reinventing our cities so they function better.”

Floating buildings can be moved and adapted…it’s all about reinventing our cities so they function better.

Nicolas Le Guen, the founder of Aquashell, a France-based architectural firm that specializes in designing floating buildings, concurs. “Floating homes are becoming more popular because they’re the best solution (to many problems),” he notes. “And after we build floating homes, we notice that our customers then want to build other kinds of floating projects, such as floating fitness rooms or floating restaurants, because they solve problems like rising prices and limited space in the center of towns.”

The projects built by or on the books at Waterstudio.NL are mind-blowing in nature compared to Sausalito’s shabby-chic, hippie-ish houseboat community. From a floating mosque in Dubai and a buoyant hotel off the coast of Norway to a water-based resort in the Maldives and an on-water health centerin China, Olthuis is clearly intent on pushing the flotation envelope.

Other forward thinkers around the globe are following suit. A Google search for “floating homes” generates more than one million hits and reveals conceptual, see-worthy aquatic gems like this audacious-but-spare ocean-going yachthouse from Wally Design in Monaco, suitable for Arabian oil sheiks; a rakish, minimalistic-yet-chic abode for millionaire Wall Street quants, designed by Le 2 Workshop in Poland; a bobber-inspired dwelling for the open seas from Orhan Cileli in Detroit, Michigan; and a futuristic home that imitates a jellyfish, designed by Giancarlo Zema Design Group in Rome. Or for a real walk on the wild side, how about this floating “ecopolis,” imagined by Paris-based Vincent Callebaut Architectures?

Sleeping with the fishes

Dubai’s chic Floating Seahorse villas offer deep-blue views.

SEASIDE HOMES IN DUBAI are among the world’s priciest. A typical beachfront townhouse on the tony Palm Jumeirah artificial archipelago can run £2m or more and plots on a sprinkling of man-made islands called The World can command 10 times that sum. Enter the Floating Seahorse, a three-storey seaborne townhome with all the luxury touches a well-heeled Emiratis would expect — plus one amazing trick. The one- or two-bedroom houseboat’s glassed-in subaqueous bottom floor offers panoramic views into the Persian Gulf’s depths. Kleindinest Group, the real estate firm behind the Seahorse (examples of which are presently listed for between £1.3m and £2.3m), calls it “the world’s first underwater villa with a view to the world’s largest national aquarium.” Because what’s more luxurious than going snorkeling without having to get out of bed? —Bryan Lufkin

More practical examples of floating homes also abound for the 99 percenters, like this sleek, IKEA-ish home from +31 Architects in Amsterdam; a sensually contoured, wave-mimicking abode, designed by Robert Harvey Oshatz Architect in Portland, Oregon; a modern-yet-rustic dwelling from Christopher Simmonds Architect in Ottawa, Ontario; and this stylish stunnerfrom Vandeventer + Carlander Architects in Seattle, Washington.

Some designers are surprised it took so long for this flood of innovative designs to emerge. Some 10 to 15 years ago, the Dutch seemed poised for a houseboat boom, but a host of obstacles thwarted growth, says Jonathan Baker, a native of Santa Barbara, California, who now lives in Copenhagen and works as an in-house architect for the United States embassy there. He should know; Baker used to work for Waterliving, a now-defunct architecture firm that specialized in floating homes before it went under, doomed by a promising market that never materialized.

Should a floating home be considered a ship that needed to be registered like a boat? What about building codes? Building materials? And obtaining insurance and bank loans?

“Should a floating home be considered a ship that needed to be registered like a boat?” he asks rhetorically, ticking off a list of complications that mired progress. “What about building codes? Building materials? And obtaining insurance and bank loans? We had very contemporary and experimental ideas…but there were no precedents. Governments had a hard time getting their heads around how these homes would be taxed and who owns the water they’re on.”

Yvonne de Korte, an urban geographer who co-wrote a book in 2008 about floating homes called Mooring Site Amsterdam: Living On Water, agrees with Baker’s assessment. “When we wrote the book [with co-author Maarten Kloos], there was an energy surrounding floating homes – you could feel it with builders and architects and students,” recalls de Korte. “But not much was realized.”

Olthuis sees all that changing now, noting that floating homes now receive more support than flak from municipalities. “Insurance, licensing, regulations – they all take time to figure out,” he says. “But in the last several years, things have pushed over a kind of invisible line and things are moving much faster.

“The DNA of these houses is changing, too,” he points out. “They’re slowly becoming more like land-based houses. The quality is getting better, we can build them larger, they require less maintenance, offer better stability and prices are dropping to point that they almost cost the same as homes on land. They’re becoming more interesting to municipalities, because they’re treating them as real estate, which generates property taxes.”

Technological advances are making floating home more viable, too, Olthuis says. Unlike many early houseboats that were built on old barges, new floaters now sit atop concrete “tubs” that offer more stability through a lower center of gravity. And they’re increasingly being built with composite materials that are lighter and stronger than traditional materials. Moreover, it’s becoming more common to build a home on land, then use a crane to place it on the “foundation,” he adds.

“There’s also a trend toward ‘plug-and-play’ houses,” Olthuis adds. “Say you have a basic house with three bedrooms. But when your kids move out, you take off a (modular) room off and put on something different – essentially order a new room for your house. It can change with you as time passes and new needs emerge.”

A former barge converted to houseboat duty along a canal in Amsterdam.

Are floating homes less expensive that land-based homes? It all depends. In Marin County, where floating-home-resident Affronte lives, the average home on land goes for about $800,000. An average two-bedroom, two-bathroom floating home? About $600,000 – but that doesn’t include a one-time payment of about $200,000 for berthing rights, plus property taxes and monthly association fees. The residents also pay higher interest rates for mortgages because lenders worry about the homes’ mobility, which gives unscrupulous owners the means to take off for points unknown.

But the floating homes more than hold their value, Affronte points out, noting that an average unit six years ago sold for around $375,000. “Demand always exceeds supply,” she says. Adds Baker: “Anything that overlooks water is more expensive…but the actual structures generally aren’t any more expensive than traditional homes.”

Cost issues aside, Olthuis envisions a buoyant future for water living as urban congestion increases and climate change brings on stronger rains and more flooding. He foresees a day when “floating gardens” of solar cells provide electric power for sustainable, offshore houses. Baker says floating sewage-treatment plants and fresh-water plants aren’t outside the realm of possibility. “Then they can develop enclaves in places without standard water and sewer infrastructure,” he says.

In addition, Olthuis contends that the floating-home lifestyle will be a boon to cities, which will vie with other water-oriented metropolises to attract residents. “Cities will need to brand themselves and make themselves more interesting, and water living will be just the thing to attract young, high-net-worth individuals…and floating communities will only increase the functionality and flexibility of cities.

“And if those young people don’t like one city, they can move their (floating) home to another city…they’ll change jobs and take their houses with them,” he concludes.

Overall, the appeal and logic of living on water is easy to fathom. “I can’t see any downside,” Baker offers. But it remains to be seen if this sea change in residential living runs aground or floats peoples’ boats.

Mailboxes for some of Sausalito’s houseboat residents.

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Ciudades Anfibias

By Beatriz Portinari
CLUB + RENFE

 

Los arquitectos del futuro proponen una Atlántida biososteniblecomo respuesta al cambio climático y la utopía de una colonización oceánica.

“El mar no pErtEnEcE a los déspotas. En su superficie, aún pueden ejercer sus inicuos derechos, pelearse, devorarse y transportar todos los horrores terrestres, pero a treinta pies de profundidad, su poder
cesa. ¡Ah, señor, viva usted en el seno de los mares! ¡Solo ahí existe la independencia! ¡Ahí no reconozco señor alguno! ¡Allí soy libre!”. Con estas palabras, Julio Verne convirtió al capitán Nemo y su Nautilus en los pioneros de la llamada “colonización oceánica”, en 1870. Casi 200 años después de 20.000 leguas de viaje submarino, ingenieros y arquitectos ofrecen propuestas viables que van desde hoteles flotantes o flotels a cruceros-residencia para millonarios como The World y finalmente la utopía social y política de las naciones semi-sumergibles que propone el Seasteading Institute.
Pero, ¿por qué querría el hombre vivir en futuristas ciudades acuáticas?
Quizá por placer, por evadir impuestos en aguas internacionales o por pura necesidad medioambiental. Según los expertos en cambio climático y el Informe España: hacia un clima extremo, publicado por Greenpeace en 2014, se espera que a finales del siglo XXI la subida del nivel del mar por el deshielo del Ártico provoque una catástrofe climática y humanitaria que afectará al uno por ciento del territorio de Egipto, el 7% de Países Bajos, el 17% de Bangladesh y hasta el 80% de las Maldivas. En España, las mediciones indican que “durante la segunda mitad del siglo XXI, hasta 202 hectáreas de terreno se encontrarán en riesgo de inundación en la costa vasca. De esta extensión, la mitad corresponde a terrenos urbanizados, tanto zonas industriales como residenciales”. El peligro es real. Las estimaciones más pesimistas dicen que en 2030 habrá 50 millones de refugiados climáticos en el planeta, que ascenderían a 200 millones en el año 2050. ¿Qué hacer con esta población sin tierra? Más allá de previsiones, la evidencia está en el archipiélago de Kiribati, al noreste de Australia, donde 100.000 habitantes buscan territorio para trasladar todo un país porque el suyo ha comenzado a desaparecer bajo el mar. El gobierno de Kiribati ha comprado terreno en las islas Fiji para instalar a su población e incluso se ha planteado los diseños anfibios de uno de los arquitectos más preocupados por el medio ambiente, Vincent Callebaut, autor de los prototipos acuáticos Lilypad, Physalia y el más reciente Aequorea.

‘aRQuibiÓTica’ conTRa El cambio climáTico
“La anticipación urbana es fundamental para crear la ciudad del mañana, que considero imprescindible en la transición energética. Lo que llamo ‘arquibiótica’ es la solución
biotecnológica de la arquitectura a la crisis ambiental que sufrimos. Me inspiro en el biomorfismo, el biomimetismo y
la biónica, donde la ingeniería puede repetir esquemas de la naturaleza y aprovechar las nuevas tecnologías de comunicación”, explica Callebaut, a quien el Ayuntamiento de París
acaba de encargar el rediseño de la ciudad. De momento, sus audaces prototipos todavía no han encontrado océano donde iniciar la revolución verde.
Quien sí ha comenzado la construcción real de un atolón artificial para salvar a su población del mar es el Gobierno de las islas Maldivas, que ha firmado una alianza comercial con la empresa holandesa Dutch Docklands, experta en ganar terreno al agua. Si el entorno paradisíaco de las Maldivas va a desaparecer bajo el mar, nada mejor que empezar a construir una réplica flotante para mantener el turismo. Para ello se ha encargado el proyecto The 5 Lagoons al estudio de arquitectura Waterstudio, que dirige Koen Olthius, considerado “uno de los 100 eco-arquitectos que cambiarán el mundo” y que apuesta por el paso de las ciudades verdes a las ciudades azules sobre el agua. “No debemos tener miedo al posible aumento del nivel del mar, sino verlo como una oportunidad para mejorar nuestras ciudades. Si la costa española se puede ver afectada, debería empezar hoy mismo a considerar soluciones. Estas plataformas flotantes deberían ser eco-sostenibles, más duraderas y flexibles”, cuenta Olthius. El arquitecto va más allá e imagina “bellos parques en el agua, dinámicos, capaces de cambiar de forma y función en cada estación; el turismo ha sido siempre muy importante en la economía española y creo que estas extensiones flotantes podrían atraer más turistas.
Podría aportar al mismo tiempo seguridad y prosperidad a la costa. La tecnología está disponible, sólo sería necesario que fuera económicamente viable”.
El Seasteading Institute, creado en 2008 con importantes inversores como Peter Thiel, fundador de PayPal, va más allá y propone ciudades-estado independientes en aguas internacionales. Sin embargo, su utópico proyecto Floating City aún no ha visto la luz. “Técnicamente las ciudades anfibias son viables, pero deberían responder a una necesidad económica, legal y política real porque de lo contrario el proyecto no es rentable. Si tienes una plataforma que no pertenece a ningún país, no puedes defenderte de ataques piratas, por ejemplo. Para el problema del cambio climático existen soluciones más baratas como se ha visto con el relleno de tierra que está haciendo Singapur en su costa”, advierte el Ingeniero Naval y Oceánico, Miguel Lamas, experto en plataformas flotantes y antiguo colaborador del Seasteading Institute. En su tesis Establecimiento de comunidades autónomas en alta mar: opciones presentes y evolución futura hace un análisis realista de los posibles escenarios. Aunque estas comunidades en alta mar serían beneficiosas porque fomentarían el uso de las energías renovables de origen marino y la protección del hábitat oceánico, hoy por hoy no existe economía ni sociedad que respalde a corto plazo un costoso proyecto como las Ciudades Flotantes autónomas. Parece que la utopía de la colonización oceánica tendrá que esperar.

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Koen Olthuis one of fifty innovators of the 21th century

Koen Olthuis selected as one of the Fifty Under Fifty innovators of our time. After a world-wide search of 50 top architecture and design firms by the editors, lead author Beverly Russell along with Eva Maddox and Farooq Ameen help bring together a unique body of work; all partners in these firms will be 50 years old or under at the time of publication, and represent a forward-thinking generation of creative people, aware of global issues that urgently need solutions through imaginative design.

A distinguished five-person jury presided over the final selection: Stanley Tigerman, founding partner, Tigerman McCurry, Chicago; Ralph Johnson, design principal, Perkins+Will, Chicago; Jeanne Gang, founder Gang Studio, Chicago; Marion Weiss, founding partner, WEISS/MANFREDI, New York; and Qingyun Ma, Dean of Architecture, University of Southern California, and founder MADA s.p.a.m., Shanghai and Beijing.

The innovators featured in this impressive volume share with us, and the world, their desires for exponential learning; designs are illuminated with full-color photography and detailed illustrations, helping to showcase the innovators’ individual curiosities, imaginations, and talents. This material shows how they bridge disciplines, respect cultural norms, respond to human needs regardless of costs, and how they adopt team transparency in their passion to create and solve problems with a clear mission.

This highly anticipated book showcases honorees located across many different countries, including Bangladesh, Belgium, Brazil, China, Germany, India, Ireland, Japan, Mexico, The Netherlands, Norway, Spain, Sri Lanka, Sweden, Thailand, Turkey, and the United States. Significantly, a quarter of these innovators are women, representing the elevated leadership of women in architecture and design.ᅠ

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