A 24-by24-foot Cor-ten-clad pavilion tops the three-story addition.

In the kitchen area and throughout the home, Mads Odgård, shown here, and Mette Lyng Hansen mixed Odgård’s pieces, such as the Odgård kettle for Raadvad and custom table, with Ikea basics and the Workshop pendant lamp by Louis Poulsen.

A Seattle family tasked Atmosphere Design Build with creating a sustainable dwelling in Nevada City, California, the matriarch's hometown and a historic mining community. The firm's material-driven approach channels the pioneer spirit of the gold rush, without compromising comfort or high-efficiency standards.

The Cobb Haus, a wood-sided, 700-square-foot cabin in Cobb, California, features a large wood deck surrounded by towering trees.

Simpatico Homes founder Seth Krubiner has lived in the prefab company’s nearly net-zero prototype since it was customized and lifted onsite in 2011.

Components for low-cost prefab homes designed by Habitat for Humanity and the firm Minarc for South Central Los Angeles were trucked in and assembled over three days. Photos by Art Gray.

Rice surfs the net at the built-in desk.

From urban-dwellers to empty-nesters, many are now embracing the movement toward smaller, more sensible living. Bosch's new line of 24" kitchen appliances is designed to help them save space without downsizing on style.

Bosch's compact kitchen line, which includes an electric and gas cooktop, wall oven, and refrigerator, as well as an 18" dishwasher, is particularly well-suited for city apartments and secondary hangouts, like basements and guesthouses.

Most impressive of all, a solar array on the roof empowers the residents to produce more energy than they consume on-site.

A view of the installation at the House for Contemporary Art in Belgium.

Numen's Net, occupied by gallery attendees.

Together, Bosch's sleek 24" kitchen and laundry suites address the trend toward smaller living by extending modern, European-style design to even the closest quarters.

Joining the kitchen line, Bosch recently unveiled an efficient 24" laundry pair. The units can be stacked vertically, further reducing their footprint in the home.

The spruce cladding that wraps around the Vilde tiny house model patinas and eventually turns a silvery-gray tone that blends into the Scandinavian landscape.

The 24-foot RV is six foot shorter than Living Vehicles next smallest model, and sets a new standard in the luxury travel market.

At a net-zero home in San Francisco, the house's green roof is more of a brown roof: a desert-like array of native and non-native succulents that require minimal irrigation. The soil area is maintained with motorcycle tires (including one from a Harley hog), which control erosion. Composting takes place here as well.

Metal shingles cut from scraps of sheet metal mix with new material as well as odds and ends, such as a road sign Baker bought at the Alameda Flea market. Baker designed stainless steel clips that allow any tile to be easily moved or replaced without the use of tools. Planter box panels add functionality to the facade and can be swapped out or relocated throughout the year.

The wet areas open to views of native trees above allow the morning light to flood in

In smaller abodes, spiral staircases are a practical way to access the second floor without taking up too much space. This studio apartment designed by Douglas Stephen & Partners was built in 1965 and has undergone an upgrade in recent years. With a compact, playful look, the bright yellow underside of this spiral staircase brings a bit of fun into a split-level in London, England.

LIVE. LOVE. LOFT.

Rather than a one-off custom piece, Baker designed the daybed as a prototype and worked with Ohio Design on its fabrication.

The Catch lamp is based on a butterfly net.

“These are homes that are truly sustainable—they don’t create any waste in fabrication, and there’s no waste onsite.” —Tryggvi Thorsteinsson, Minarc. Photos by Art Gray.

“There’s no drilling or chopping,” says Erla Dögg Ingjaldsdóttir, cofounder of Minarc. “It’s a very elegant way to build.” Photos by Art Gray.

The kitchen flooring is 24” x 24” DalTile Chadwick Charcoal Tile and the wall tile is by Heath Ceramics.

NET was founded by renowned architect Alejandro Sticotti in 1990. The firm prefers to use South American hardwoods that, in addition to being durable, anchor their products in their Argentine origins. For instance, the Silla ska chair (seen here) is made from lenga, a patagonian wood that resembles American cherry. The satin black floor lamp is also from NET.

Bullitt Center (Seattle, Washington: 2013) Denis Hayes, chief executive of the Bullitt Foundation, said that if the Bullit Center, his organization’s ambitious experiment in creating a sustainable and “living” office building, is still the greenest space of its kind in a decade, it will have been a failure. That’s not bragging, that’s merely an insight into the scope and ambition of this revolutionary structure, a testing ground for water and energy self sufficiency (via rainwater collection, composting, and a large solar array) aiming to be a case study for radical change in how we build. Based on stats released on Earth Day in April, the building’s first anniversary, the structure is currently using 75 percent less energy than a similar structure and is on its way to a net zero energy certification. Photo by Benjamin Benschneider

A special media door opens to reveal the bedroom’s AV system.

The home features a formal garden, AV room, sauna, and swimming pool.

The new Bosch 24" gas cooktops, designed especially for small spaces, include a 11,500 BTU burner, one simmer, and two medium burners.

Accessed by a ladder with alternating treads, the sleeping loft features custom casework by Kevin P. Clarke Custom Woodwork that holds Kid Robot figurines, Hopi baskets, and an iPhone gramophone by Lawrence LaBianca. Lights by Pablo Designs are perched atop a bed that Baker designed. Peeking out from under the rug (made by Baker’s mother, Emilie) is a salvaged maple floor, which was finished with VOC-free flaxseed oil.

Sticotti cites a mixture of design inspiration from Japan, Scandinavia, and European designers who emigrated to the Unites States. A simplicity and honest expression of materials is evident in this coatrack made from peteribí and lapacho, both South American woods.