The doors are set on a track by Häfele and pivot 90 degrees.

Comprising 11 modules, this green-roofed prefab was built in 90 days in a factory near São Paulo and then transported to the site in three shipments on flatbed trucks.

At over 500 square feet, the house’s green roof may be its most powerful—and most expensive—environmental statement. It cost $8,000 to waterproof, and $7,000 to landscape. Water from the roof feeds the toilet and the garden’s watering system, and the garden itself insulates the house and keeps gas bills low in winter. Photo by Nic Granleese.

Crystal Prime 7000 Box of 10

Sherbanuk (left) and Campbell sit by the outdoor fireplace, which adjoins the screened-in porch.

The facade of a house in Belgium consists of "knitted bricks." “In this part of Belgium, 90 percent of the houses are built with brick,” says architect Tom Verschueren. “It’s a classic material that we tried to use in House BVA in a totally different way.”

The “Sassi” of the Southern Italian UNESCO World Heritage City of Matera are ancient cave dwellings dug out of the region’s limestone rock, which have been used by humans from as far back as 7000 BC.

Before: The original house, purchased for $7,000, was a “termite-infested nightmare made of diesel-soaked palettes” say Mike and Lauren. The couple were drawn to the home's renovation potential, its proximity to San Jose and Pacific Coast beaches, and its elevation (over 3,000 feet) that affords stunning views.

True to the LA 90's Postmodern style

The family was drawn to this home for it's 90-foot double-wide lot, mature trees and park-like setting.

Burnt Cedar playfully interacts with the landscape—including the 60- to 90-foot Jeffrey and Ponderosa pines that populate the lakeshore.

Set next to protected wetlands and close to the beach, House for Hermes is located about 90 minutes south of Melbourne.

It’s hard to believe, but this trendy stay was purchased by Kathrin and Brian Smirke at a tax auction for $7,000. While it sounds like a great deal, the 1957 property was abandoned—and it needed to be stripped to the studs and completely rebuilt. The DIY interiors now are teeming with photo opps—from stylish vignettes to an outdoor tub constructed from a water trough.

This modern A-frame is in a beautiful remote location in the Sierra National Forest, California at an elevation of 7000 feet. Fourteen miles above Bass Lake on the Sierra Vista Scenic Byway, this property is surrounded by amazing meadows, secret swimming holes, and miles and miles of undiscovered hiking trails. Your own private Yosemite without the crowds.

The modules were built to 90% completion inside a factory—fittings, fixtures, tiles, and more were installed before the units were trucked to the site and placed atop the foundation in five hours.

The undulating wood-and-steel structure is engineered to hide a 90-foot steel structural beam that supports the cantilevered canopy and creates the illusion of a floating pavilion from the front.

The entire property consists of 90,000 square meters, or about 22 acres, on the island of Milos in Greece. Each of the five corrals are defined in the landscape by a white border.

Architect Christopher Beer helped his DIY-friendly former roommates Karen and Grant Jack create a mixed-use dwelling in a town located about 90 miles south of Auckland.

Fresh air is important and 90 percent of the air that goes in your lungs is indoor air. Airmega makes sure that the indoor air you breathe is as clean as it can be.

Because the night air cools the walls in summer, the home has no air-conditioning—though daily highs often rise into the mid-90s and above. Photo by: Kirk Gittings

Located on owner Lucas Steyn’s family farm in Botrivier, South Africa—about 90 minutes from Cape Town—Copia is an eco-retreat comprised of two shipping container cabins.

Back/road view of second floor cantilevered over first floor at 90 degree angle. Carport to the left and dining area to the right under the eaves.

Lake Poisson Blanc, some three hours from Montréal and 90 minutes from the Mont Ste. Marie ski resort, is the remote backdrop for Naturehumaine Architects’ compact and monochrome cabin embedded on a slope, a meditation on white.

Designer Paola Navone transformed a 200-year-old factory in Umbria into an inviting home for Andrea Falkner-Campi and her husband. Once a tobacco-drying plant, and before that a silkworm farm, the home sits 90 miles north of Rome.

Looking down from above you can see the hovering grace of the awning. It reminds me of some Calder mobile frozen as it spins. The budget for the project was $7,000.

To arrive at the front door, one must travel on an informal path of bluestone pavers, then turn 90-degrees to enter. “Discovery and mystery is part of the charm.” Herrmann says. The seven-foot cantilevered covering has an underside of hemlock slats that extends indoors.

In renovating the 90-square-foot kitchen of a Boston apartment, architect Chris Greenawalt drew upon both spatial and material solutions to create a pleasing and wheelchair-accessible space to accommodate all three of its tenants.

"The materiality and the look of the house had to have the identity of Chiloé," says Sánchez. Corrugated zinc panels clad the home’s exterior, zinc being the chosen material which "covers 90% of the houses in Southern Chile."

Cubicco’s prefab houses, like the Cabana Beach model, are built with laminated veneer lumber, an engineered material that uses up to 90 percent of a tree—compared to typical wood timbers that use only 60 to 70 percent. Modules can be disassembled if the owners relocate.

To keep the project close to their $10,000 budget, the family looked for bargains whenever possible. The circular window was a misorder they snagged for 90 percent off from a local building supply store. The mahogany siding is a mix of Craigslist purchases and Dumpster finds.

Stephen Kenn Inheritance Expandable Dining Set ($7000)

Designed to accommodate virtually any user, the bathroom comprises two separate areas—one for bathing and showering, and one with a toilet, vanity, and touchscreen smart mirror. A closed-loop water recycling system in the shower cuts down on water usage by 90 percent compared to standard showers.

The Research Tower's windows are comprised of 7,000 Pyrex tubes, and at certain times of the day, you can see the silhouette of the floor plan.

Desert Boot by Clarks $70.00 The simple and classic Desert Boot is stylish and wearable for every season.

Immerso Glamping, a 65-square-foot prefab structure designed by Italian architects Fabio Vignolo and Francesca Turnaturi, is located in the Piedmont region of Italy. With a simple palette of birch plywood and plexiglass, the cabin was inspired by the architects’ experience designing easy-to-assemble, flat-packed cabins for disaster relief. You can book it on Airbnb for around $90.

Measuring nearly 7,000 square feet, the converted home presents various living areas to gather, all of which blend original detail with modern finishes.