California Prefab Homes

In the foreground are Float beanbag chairs and poufs from Paola Lenti. Mamagreen sofas nestle near the house on the sun-dappled deck. A 9.5-foot-tall shade cloth curtain seals off the entire length of the house when the couple is away, keeping the heat out of the interior and preventing accidental bird suicides against the floor-to-ceiling glass walls.

The weeHouse exteriors are clad in corrugated Cor-Ten, but with a custom pattern of folds to create an organic randomness. The foundations were designed with a shallow recess around the top to make the modules look like they’re hovering. After they bought the property in early 2014, the Siegels camped there for two summers while they saved up money and planned a permanent structure. In his research, BJ came across this design, a customizable prefab house by Alchemy Architects. "Of all the things that I found, I was drawn to that one because it was absolutely the simplest and cleanest," he says.

Conceived as an escape from city living, this 2,580-square-foot prefab comprises two primary and 11 secondary modules, while the 290-square-foot guest cabins consist of single modules craned into place atop concrete piers.

In need of more room for their growing brood, Eric and Emma Gimon, with Luc, Paul, baby Louise, and their dog, Nefi, asked for a private space to accompany the house designed for Eric’s great-aunt.

The butterfly-roof pavilion by architects Kate Simonen, Benjamin Parco, and Phil Kaefer connects to the low-slung home Joseph Esherick designed in 1954 via two covered walkways and an open-air tearoom. All three structures sit lightly on the landscape designed by Lawrence Halprin and updated over 50 years later by Gary Roth, a former employee.

Project Name: Dawnsknoll

A pair of Icelandic prefab pioneers deliver an efficient family home in Culver City. Building smarter is at the heart of everything designers Tryggvi Thorsteinsson and Erla Dögg Ingjaldsdóttir do. Whether they’re testing the limits of indoor/outdoor living or developing a prefabricated wall system that they hope will make traditional wood framing a thing of the past, the founders of the Santa Monica design studio Minarc are consumed with making structures stronger, lighter, and more efficient.

Thanks to a prefab in-law unit, an octogenarian modernist lives independently on a peaceful, verdant site in Northern California.

Located seven miles from Frank Lloyd Wright’s estate, Tim Wright and Karen Ellzey’s prefab home is meant to pay homage to the great American architect’s experiments with modular housing.

Despite the remoteness of the lot and the challenges it posed, the light-gauge steel frame was erected in days, and the entire home was completed in two months—a testament to the ease and efficiency of the prefabricated system. The building sits on upright columns that are bolted to independent concrete footings, giving the home the illusion of floating.