We didn't make it to this year's West Coast Green, but followed the coverage of those who did. Most interesting: SG Blocks' Harbinger show house.

We previously gave an overview of the house in the run-up to the show. The home was designed by Lawrence Group and built by SG Blocks, SG standing for "sustainable, green."

Inhabitat visited and gave a full review. I found this quote about containers particularly interesting:

The same local skilled workers who repair the containers are hired to repurpose them into house modules, which can then be easily shipped on trains. This process translates into a miniscule transportation footprint and blazingly fast build times: “when you deliver the finished components to site, you can install up to 12 containers using one crane in one day - that’s the equivalent of a 5,000 square foot house that is set in place in one day”.

Preston over at Jetson Green toured the house.

Everyone I talked to loved it. You might think that a shipping container home would feel closed-in and constrictive, but this home certainly wasn't. At 1700 sf, everything felt just right to me.

The home will be on view at other trade events:

The Harbinger Home will go on a journey just as the containers did. It will go to the Urban Land Institute next for their October show, then up to Washington DC for Ecobuild America [in December].

Private Island Blog approves:

The home is ideal for island life as it is set up for the use of solar power and rainwater recycling.

The story behind the name:

West Coast Green had a contest in the naming of the house. The winner, Gregory Schaefer, came up with "Harbinger House", saying:

'By definition, a harbinger is something which allows us to see the future, a foretelling, a symbolic event or bridge. I think we usually are aware of these in hindsight, but here, today we can clearly see the future. The Harbinger House is a model of sustainable design that needs recognition for its forward thinking vision and creativity.'

Visit the West Coast Green site for a long (55 minute) video of the assembly of the Harbinger House. Floorplans are also available.

ColoradoBiz Magazine reports on Sidekick Homes from Kephart Living:

Sidekick specializes in ADUs, or accessory dwelling units. They're anti-McMansions, small — sometimes tiny — living quarters built for backyards of existing homes, typically for aging relatives. Hence, they’re sometimes called "mother-in-law" or "granny" flats.

That's a great niche for modular construction.

The article included some local details:

One complication for the backyard ADU business is that zoning rules vary among municipalities and neighborhoods. ....

"They’re promoted by cities like Arvada [Colorado] as a way to help with the affordable housing issue and the issue of housing the aging population, which are both coming together pretty strongly right now," Kephart says.

In Denver, ADUs are allowed only in neighborhoods zoned for mixed use, such as Stapleton...

Other basics:

• price: $75,000 - $200,000
• size: 400 - 1160 square feet
• owner Michael Kephart launched Sidekick Homes early this spring

The best part:

They're ... pre-built and trucked from the factory to the home site with everything from the ceiling fixtures to the kitchen counters intact.

A recent email from Alchemy Architects says:

We have now included more and lowered our prices! 2,000 SF weeHouses with Good Stuff are around $125/SF or less, leaving you extra coins to put into your site.

Old pricing was in the $150/SF range, so it's quite a drop. Actual pricing depends on your part of the country.

Also mentioned:

Order a weeHouse SMALL with an off-grid Solar Package before November 1, 2008 for only $99,000 [$109,000 for CA and other states west of Colorado]. Outfitted with Fusion's 720W AC Energy Kit, you only need to provide the foundation, well, and septic to have a completely finished retreat.

Higher capacity solar kits are available for larger homes. For details: FusionModular.com.

Very interesting -- though apparently not headed to the US. From an article in the Wall Street Journal:

Best known for its top-selling cars like the Prius and Corolla, Toyota is looking to apply its ecofriendly image and technical know-how to help boost sales of its small and little-known prefabricated-housing division.

Unbeknownst to most of us, Toyota prefabs have been around for awhile:

Since 1975, Toyota has been building steel-frame houses designed to withstand earthquakes and typhoons and keep out burglars.

The tie-in with Toyota's vehicles is certainly interesting:

Toyota's aspirations as a home builder are also gaining new importance with the planned launch by 2010 of its plug-in vehicles, gas-electric hybrid cars with powerful lithium-ion batteries that drivers will need to recharge at home. The car maker is testing an electricity-monitoring system in its homes that would charge the vehicle during off-peak hours to keep utility bills low, while the car's battery can serve as an electrical backup, powering the home during blackouts.

I can't help but quote this imagery:

At the Kasugai Housing Works in central Japan, one of Toyota's three prefab-housing factories, an assembly line of robots, conveyor belts and helmeted workers produced a steady flow of rectangular steel-framed cubicles finished with staircases, kitchen cupboards, bathtubs and toilets.

The timeline sounds right:

Most Toyota homes are made from six or more of these large cubicles, which are assembled -- like Legos -- on the building site. From its start on the factory floor to its final completion on site, a Toyota home can be built in 45 days, less than half the time it takes for contractors to build a typical wooden-frame home, Toyota says.

Alas:

Other than what it called a one-time "experiment" building a development of 50 homes near its truck plant in San Antonio in 2006, Toyota says it has no ambitious plans to build homes outside Japan.

The company's past sales leave much room for expansion, within Japan and abroad:

• 5,000 units in 2006
• 4,600 units in 2007

I couldn't find an official Toyota Homes Website, just this little tidbit from Toyota's homepage.

Read the whole article for some housing issues that are specific to Japan.

Last week, Lloyd Alter wrote about KieranTimberlake's Cellophane House ... which reminded me that we hadn't yet covered it in detail. The home is one of the five in MoMA's Home Delivery exhibition.

Referencing a talk given by Steven Kieran and James Timberlake a few years back, Lloyd explained why the Cellophane House is so exciting:

I saw that prefab wasn't just about building in a factory, but was about reinventing the way we build, not just where.

...

"Chunking" is what car manufacturers do; they have subassemblies that are put together into modules, and then put together into the finished product. Builders already do a bit of that, buying pre-hung doors and nail-in windows. KieranTimberlake take it to the next level on the Cellophane House.

Visit Treehugger to read Lloyd's complete post.

Here's more info from the KieranTimberlake project page for the home:

Cellophane House is a five-story, offsite fabricated dwelling... The 1800 square-foot residence has two bedrooms, two bathrooms, living and dining space, a roof terrace, and a carport.

Like their Loblolly House, this one is designed to be easy to put together and take apart.

Cellophane House relies on a system of customizable elements. An aluminum frame serves as a matrix on which other factory made elements like floors and ceilings, stairs, bathrooms, and mechanical rooms can be attached. The aluminum structural framing is bolted, rather than welded, allowing it to be taken apart as easily as it is assembled. Moreover, this frame allows any of the walls, floors, structure, or envelope to be replaced at any time, without invasive modifications.

They describe the concept using soaring rhetoric:

A building is, at root, nothing more than an assemblage of materials forming an enclosure. We recognize that these materials came from somewhere, are held together for a time by the techniques of construction, and will at some future time transition into another state. While we tend to think of buildings as permanent, they are in fact only a resting state for materials, a temporary equilibrium that is destined to be upset by the entropic forces that drive the physical universe.

Definitely worth a view: a time-lapse video of the home's assembly.

I'll give Lloyd the final word (as I'm inclined to agree):

[The Cellophane House is] a demonstration of pushing the technological building envelope to the very edge; like so many things that came out of the space program that are now part of our everyday life, there are ideas here that in ten years will probably be part of every building.

model: Cellophane House

designer: KieranTimberlake Associates

We briefly covered the KieranTimberlake and LivingHomes partnership when it was announced in March. The official announcement (pdf):

Combining their respective expertise and knowledge, LivingHomes and KieranTimberlake have developed the LivingHomes Building System [LBS], a proprietary platform that combines modules for kitchens, baths and utility cores, and "Smart Panels™", that integrate mechanical ducting, electrical and plumbing. With complexity and cost concentrated in particular panels and modules, this flexible building system allows for high-volume fabrication ... and easier transportation.

Last year, we discussed KieranTimberlake's earlier "smart cartridges" which were used in the construction of their Loblolly House. A bit more about the advantages of the system:

In addition to lower cost and faster production, the LBS allows for the unprecedented adaptability of previously 'fixed' spaces. The new "expandable" single family LivingHome by KieranTimberlake is designed to grow with the changing needs of its inhabitants and can be easily reconfigured from a modest 900 sf dwelling for a single person or young couple to a spacious 2,160 sf four-bedroom home for a growing family. LivingHome owners will be able to purchase addition rooms from LivingHomes, when they need them, and LivingHomes will assemble those rooms on site.

The LivingHomes by KieranTimberlake line features just two models, the KT1 and the KT2. The KT1 comes in three subtle variations, each able to be expanded differently.

For instance, the KT1.1 can grow from the 1 bedroom, 1,020 sf "small" version to the 4 bedroom, 2,160 sf "large" version by adding three additional modules. Difficult to describe with words, the extensions seem both logical and organic; take a look at the KT1.1 brochure (pdf) to see how the changes occur.

About the KT2:

The LivingHomes KT2 line of single family townhomes feature three floors of living with attached two car garages, making them an excellent alternative to multi-story condominium developments.

This sort of expandability makes perfect sense with prefab structures and KieranTimberlake's "Smart Panels™" seem to be a key component. I for one am interested to see how this partnership grows. Something that should help them along: prices between $155/sf - $215/sf.

model: KT1 from LivingHomes and KieranTimberlake

model: KT2 from LivingHomes and KieranTimberlake

Dwell on Design visitors loved the prototype HOM Escape in Style. Kimberly Parker, head of PR for HOM, provided some details.

[It] is a comprehensive product line of fully manufactured, high-design modern homes and carefully crafted furniture, accessories and systems.

Designed by KAA Design Group in Los Angeles, the three different HOM models range from 1,000 - 3,600 sf and can include as many as 6 bedrooms! The listed price per sf is $200, though customization options will most likely push that number higher.

HOM is a manufactured home -- commonly known as a "trailer":

HOM is different from pre-fab, modular, or component housing in that it utilizes a proven 85-year old industry to build and transport the product while a North American dealer distribution network manages the entire process.

One advantage of the "mobile home" designation of HOM:

The HOM unit is towed to your site on its own axle and wheels by a semi-trailer truck. The axle and wheels remain in place under the HOM, disguised by skirting and the modular deck system, thus allowing HOM to be relocated in the future. HOM falls under the federal HUD code of manufactured housing. This category replaced what was formally referred to as "mobile housing" in the early 1980s.

There are a number of differences between the more traditional construction of most prefabs and the construction of manufactured housing. Each has its own advantages and disadvantages that should be considered before buying. We'll write more on those differences soon.

Because we couldn't be at Dwell on Design, we sent out some emails to see what attendees had to say. From Jonathan Davis at pieceHomes:

Dwell was a fantastic event, the pieceHomes booth was constantly busy with a stream of very interested, knowledgeable attendees. We launched two new homes along with our new line, extraPieces: modern, green, modular additions for existing homes.

A bit more about the two new homes:

...the Flat Wrap, another in the Wrap series, is a 1,765sf 3 bedroom one story home with expansive glazed walls allow for true indoor/outdoor living. The 1,900sf three story loft Cube House can be used for urban-infill where smaller footprints and higher density are appropriate.

With these two additional models, pieceHomes offers nine standard models, ranging in size from the one bedroom, 320 sf Container House to the 1,900sf Cube House. All of the pieceHomes models, including three custom projects, can be seen in their online brochure (pdf).

The extraPieces concept sounds intriguing:

extraPieces™ provide the extra space needed without having to build a whole new home. Add a family room or a master suite to an existing home, or build a new garage and studio in the backyard. Exterior materials can be customized to complement the finish of the existing home. Interiors can also be customized to meet particular needs and conditions, such as adding a kitchen and full bath to turn eP: studio into a guesthouse. Each of the extraPieces™ uses the same palate of green materials, energy efficient technologies and sustainable construction practices as the new homes by pieceHomes®.

The extraPieces range includes studio, master suite, and extension modules. This product is the first I've seen that offers such prefab solutions specifically for adding a room to your existing home. If they can match a traditional look, perhaps it could be Scott's prefab kitchen?

model: extraPieces from pieceHomes

With MoMA's Home Delivery exhibition just 6 weeks out, signs of substantive progress are appearing. And it's definitely fun to follow along.

From an article in the New York Sun last week:

Inside a 20,000-square-foot warehouse space in Brooklyn's Gowanus neighborhood, about two dozen people gather most weekday mornings to work on a giant plywood puzzle. There are square-shaped pieces with oval holes in their midsection and jagged ones, resembling enormous saw blades. When they complete the 1,200-piece puzzle, they will have built a house -- or at least the skeleton of one.

Next week, that residence — collapsed into three accordion-like pieces — will be loaded onto a flatbed truck and taken to a vacant lot abutting the Museum of Modern Art. There, the design of the New York architects Jeremy Edmiston and Douglas Gauthier will rise in June, alongside four other modern dwellings

The article speaks of Burst*.008 from Gauthier Architects. We get a little more info from the MoMA Home Delivery blog:

So far the hiccups we’ve had have been solved by the application of elbow grease and collaboration. Our gratitude to all who have given us both.

Other homes are also moving along. Kieran Timberlake's Cellophane House has a frame and quite a bit of glowing acrylic!

The System3 House is in a shipping container (very cool one minute video) somewhere in the middle of the Atlantic.

And, DelMarvaNow.com shared some details on the fabrication of the 'Housing for New Orleans' exhibition home. That home is a version of yourHouse by MIT's Lawrence Sass.

Check out the full Home Delivery blog to see videos, images and tons of updates on each home's construction. Read the full New York Sun article for more detail on the Burst* project and the exhibition.

Coming soon to green living shows in Yorkdale, Canada (June 5-15) and Toronto (September 25-26), the Canühome is an example of cutting-edge eco-friendly home design. The Canühome website explains:

The 850 sq.ft. exhibition contains a kitchen, living room, dining room, bathroom and bedroom.

The exhibit includes interpretive panels which highlight the features of the design for the public...

Why is this exhibition so helpful? Ecolectic sums it up:

Made largely of FSC certified plywood and other wood materials, the modular home is assembled with the aid of steel brackets. Being modular you can hook up as many or as few units as you like should your need for space grow or diminish. The engineering behind the design is quite ingenious. Its shape allows for convective and radiant heating, and they proudly announce that "air is a building material"!

And Toronto's Globe and Mail newspaper goes into further detail:

...canühome's most intriguing feature is its passive solar "double envelope." Air passing between the two exterior walls on the south side is heated via the dark metal panels of the outermost skin. This heated air travels up and is vented out of the top in summer but, in winter, continues around the other side and into the radiant floor, which keeps the house about 10 degrees [50F]....

Canühome's "breakthrough" was the invention of a new fastener called a "Porcupine." These attach to the wooden structural ribs, extend outward to create the air gap and terminate where the outermost metal panels clip on. Not only is this method much cheaper, it's flexible.

Treehugger likes the idea:

...the designers have used the latest CNC technology and a lot of other ideas that make it one of the more interesting test beds we have seen.

From the mailbox:

Not-so-weeHouses designed for full-time living are now part of Alchemy's 2008 weeHouse line. We're introducing two new 4x (four-by) houses featuring 3 bedrooms, 2-1/2 baths, and 2200 square feet of living space.

The two 4x models join eight existing weeHouse models from Alchemy Architects, and represent the largest weeHouses yet to be introduced. Some background on the designs:

One challenge in pre-designing one house for different people on different sites is that the design can compromise individual needs. With the 4x, we've taken a single, efficient-but-spacious layout and made it flexible enough to work for various needs. Whether your site is a narrow urban lot or a spacious rural one, whether it faces North, South, East or West, the 4x is adaptable. In an über-flexible solution, we can even turn the house upside down (¡) to accommodate second level entries on sloping lots.

The two options:

• 2x4 : 2 layers of 2 boxes with an overhanging top floor. There's an emphasis on windows on the long side perfect for wider lots.
• 4x4 : 4 independent sliding boxes create decks and overhangs on the ends, making this layout ideally suited for narrower or urban lots.

Both houses have a central storage core, two possible kitchen orientations and flexible arrangements for entries and large master suites.

Also worth mentioning: basic weeHouse pricing for any region in the country is now available. Kudos to the weeHouse folks for making that information so accessible!

designer: Alchemy Architects

designer: Alchemy Architects

Inhabitat's Prefab Friday discussed the Method Homes Modular Cabin:

This month we’re welcoming a brand new builder to the prefab scene as Method Homes launches its first house!

Method’s prefab prototype is currently in the final stages of construction ... We can’t wait to see the finished product!

Jetson Green covered the Énóvo House, a modular from Montreal:

...from my research, the Énóvo name seems to represent something bigger -- the idea that a green, modular home can evolve with the needs of the owner. According to the website, Énóvo can be adapted to most any terrain, and because it's configured by modules, the design can morph according to the various particularities [of] an owner's life and needs.

Jetson Green also shared several photos of the Canühome:

Designed by Institute Without Boundaries, canühome is a healthy, sustainable, and affordable home.

We'll be sure to cover all three models in more detail soon.

(Dated Saturday but actually posted on Sunday. Sorry for the delay.)

Via Curbed LA:

LivingHomes is partnering with Philadelphia-based architecture firm KieranTimberlake Associates on an “expandable” single-family (pictured above) prefab green homes that can grow from 900 square feet to 2,230 square feet. All parts of the home are made in a factory--and owners can essentially order more parts of their home as their family grows... Additionally, the home will be priced at $215 a square foot, but as the country catches on to the expandable home, costs are expected to drop to $155 a home.

The post quotes Steve Glenn of LivingHomes:

As you marry, have kids, add in-laws to the household, etc., you’re either moving a lot or constantly renovating, which is time-consuming, expensive, stressful, and very wasteful from a resource perspective.... LivingHomes by KieranTimberlake introduce an important new capability to homes – the ability to efficiently and cost-effectively adapt to people’s changing lifestyle living needs.

Treehugger adds:

As a cured architect and developer, I could only dream of what the result might be if one mixed the talents and innovations of architects like Kieran Timberlake with a business visionary like Steve Glenn and set them to produce small, efficient projects that don't need a Silicon Valley multimillionaire's income to own.

That's worth some research, and we'll share the details soon.

Materialicio.us reported on the nomad home:

Another modular, truckable prefab, this time from Austria, by architect Gerold Peham. Sizes range from 44m2 [473 sf] to 88m2 [947 sf].

Materialicio.us also covered abōd:

Abōd™ was created by BSB Design to provide affordable housing for families in Africa. Easily mass-produced and deliverable by truck, ship or plane, the “home in a box” includes the entire 120sf structure (unassembled) that fits into a box 4’ x 12’ x 2’...

Treehugger shared the RuralZED prefab from the UK:

We were very excited when Sami first showed us ruralZED, the UK's first commercially viable, affordable and ready to purchase zero-carbon home; now there is more information on the RuralZED website.

Inhabitat's Prefab Friday featured two different homes this week. They also covered RuralZED:

...they claim [it] is Britain’s most affordable green prefab home and is also able to meet its strictest energy standards. Oh, and did we mention that it is a flatpack?

We’ve been waiting and hoping for more from New Zealand architect Andre Hodgskin who first wowed us with BACHKIT™, a gorgeous holiday home of prefab pavilions designed in 2000.

Low Impact Living interviewed the folks at pieceHomes:

affordability is key. A lot of companies are selling their factory-built work at $400-500/square foot—and they are gorgeous, but very expensive. Our goal is to produce some homes at the $200/sq foot level….we’d prefer to sell more smaller, affordable homes to more clients than a big, expensive home to a really wealthy client...

We are working on several homes now….the first one is a custom design. It’s called Rindge. It started off as a conventionally built house. But we realized we could build it in modules with some minor changes to the structural engineering. We realized we could save money and time going that way.

CubeMe covered Camp Smull by Resolution: 4 Architecture.

Materialicio.us discussed the pinc house sport, from Pinc House, a company involved in the Some Assembly Required exhibition we've mentioned previously.

Jetson Green loves the Rapson Greenbelt, mentioned last week.

Inhabitat's Prefab Friday featured the Magic Box.

Treehugger looked at a unique prefab:

When your hard drive is full you can plug in another, because they are all designed to be modular and interchangeable. Why shouldn't houses work that way?

architecture.MNP found a cool Danish design:

Designed by Danish firm ONV Architects, the home is a modular [really?] prefab that is both customizable and [supposedly] affordable.

Personally, I’m a huge fan of the overall form...

We mentioned the Jeriko House last year. Here are some construction details:

Jeriko House is based on a sophisticated high-tech 'kit-of-parts' building system providing high strength and incredible ease of assembly.... The heart of this system is its unique high-performance aluminum framing derived from the 'T-slot' framing commonly used in industrial automation applications. Made from aerospace-grade aluminum formed into precision shaped 'profiles' offering the approximate strength of steel with a great savings in weight, the Jeriko House frame structure is resilient, weatherproof, rustproof, and pest-proof....

Using special modular connectors, the Jeriko House frame is assembled in a classic post & beam structure. Houses as small as 240 square feet and larger than 6,000 square feet can be built. These unit shapes can be combined in a variety of ways....

In addition to custom options, the Web site shows four sample floorplans:

• Jeriko_Luke 2/1
• Jeriko_Jude 3/3
• Jeriko_Jude 3/3.5
• Jeriko_Caleb 3/3.5

As of July 2007, three projects were underway:

...now under construction in Louisiana: a 4320-sq-ft Lakefront home; a 5500-sq-ft luxury home in Mandeville; and a 250-sq-ft garden retreat in Metairie...

model: Jeriko House

designer: Jeriko House

Royal Homes is a major manufacturer of modular homes in Canada. Back in 2005, the company commissioned Kohn Shnier Architects to design the Royal Q modular:

...six hundred and twenty square feet of efficient, modern design with two bedrooms, tons of storage, all of the necessities and a few of the niceties of life...

We will deliver and install in most of Ontario and Michigan, as long as there is a road big enough for our trucks and crane....

Royal Homes completed construction on the larger Royal Q Muskoka (pictured above) in July of last year. From Treehugger:

The building is essentially a sixteen foot deep wall; ... the maximum width that can go down the road, and Martin Kohn took advantage of this to create the thin, long structure....

The terrain is rock, and quite steep. It was disturbed as little as possible, and tree removal was minimized. Because of the difference in grade, Kohn placed the living areas upstairs and the bedrooms below; this way one can change after swimming and then go upstairs to the living areas. One enters by crossing a long bridge from the parking area to the house.

model: Royal Q 1

designer: Kohn Shnier Architects

manufacturer: Royal Homes

The m-house is another small prefab home from the UK (we mentioned the home back in September):

...over 1000 sqft of beautifully designed and detailed contemporary house or office. It is entirely manufactured under controlled factory conditions, which guarantees both quality of build and delivery time. m-house arrives in two pieces, each 3m (10' approx) wide, which are then joined together on site, which takes about a day. It comes completely fitted-out and ready for you to move into immediately, and delivery is 12 weeks after order.

Features include:

• under floor heating throughout (electric or gas)

• solid fuel stove for cosy nights in front of the fire

• fitted kitchen with loads of worksurface and storage

• fridge, freezer, hob, oven and dishwasher (all Neff in Europe)

• utility/ drying room with a washing machine with a decent spin speed

• tiled bathroom with nice sanitaryware and a mains pressure shower

• big double-ended steel bath with a view out of the window

• kingsize bed decks with storage below and big shelves for books

• fitted wardrobes with mirrors inside the doors

• nice wool bedroom carpets

For some great images of the m-house, check out Ken Sparkes' flickr photostream. And watch this video of the designer from the BBC.

model: m-house

Periodically we like to look back at early prefabs. Architect and furniture designer Marcel Lajos Breuer (1902 - 1981) was a contemporary of Jean Prouvé (1901 - 1984). In 1942, Breuer designed the Plas-2-Point as "easily transportable, low-cost housing for returning GIs".

More details from a University of Oregon research paper:

This building was in fact never built, but is well documented as a pioneer in prefabricated housing types because of its ability to be mass produced with all the benefits this entailed in terms of cost improved quality, and above all, given post-war demand, rapid production....

The "plas-2-point" design was not the most aesthetically pleasing, but it was eminently practical. It owed this practicality to the fact that it was demountable, meaning one unit could be picked up and moved to another foundation with minimal effort, and conceived as an assembly line product that could easily be mass produced and shipped all over the country.

Two features make this house unique in its design and construction. First, it rests on two short piers (see foundation plan), thus avoiding the need for expensive foundation and cellar costs that are common to nearly all housing types.

Second, and probably most interesting, is that it is entirely supported by two vertical posts at the ends of the structure. These posts hold a central plywood girder that, in turn, supports cantilevered plywood trusses which form the roof and floor. The side walls are made of rigid plywood panels that are in tension, holding down the roof like a tent.

This construction system allows for all the forces to be resolved internally and transfered down to the ground at two specific points, thus becoming cost efficient in the reduction of materials needed in construction.

Those interested in the home's structure should read the full paper.

model: Plas-2-Point

Zenkaya is a prefab from South Africa:

The Zenkaya is delivered completed, ready to live in, to your site right on the back of a flat bed truck.

Zenkaya is for the discerning people who value things differently. Those who appreciate their time and don’t want to spend that unforeseen time and energy to control and manage the construction and design process, especially when it is a far away place.
....
Zenkaya design was based on core sustainable principles. To start with, well proportioned rooms, efficient use of spaces and standard size materials were identified and drawn....

The wall panels feature Chromadek (coated metal) on the outside and either polystyrene or OSB (oriented strand board) on the inside.

In form, the Zenkaya models remind me of the concrete perrinepod.

Last year, Apartment Therapy New York called the homes "stunning."

materialicio.us said:

I love the fabulous ZENKAYA as much as anyone else.

[SPACEOUTLOUD] shared photos of the homes on display at a show in Cape Town.

designer: Zenkaya

Zenkaya models range from 86 sf to 790 sf:

model: ZENKAYA Original

model: ZENKAYA Mini

model: BushKAYA

model: MiniKAYA