Aëdele VK1 Classic Edition headphones at Austere, Los Angeles.

Excerpts from the journal artist Brian Rea wrote in while he was traveling in Sweden adorn the storefront's glass.

At their A. Quincy Jones house in Los Angeles, architects Cory Buckner and Nick Roberts used permeable pavers to help the soil retain moisture.

The challenge of renovating an iconic midcentury house is surely a daunting one for any architect, but apply this formula to a Richard Neutra house, and the responsibility rises exponentially. This was the situation for Los Angeles–based architect Peter Grueneisen, founder and principal of Los Angeles–based Nonzero Architecture, who inherited the task of taking on significant updates to an already-altered Neutra—the 1949 Freedman House in Pacific Palisades, California.

Saved from demolition, stripped of awkward alterations, and faithfully restored, these rehabbed homes prove how timeless midcentury design can be.

The courtyard acts like an outdoor living room, where the Arnolds’ daughter, Josie, plays freely, safe from nearby traffic. The family dines here most of the year at the custom-designed wood-and-steel table. The picnic table set reappropriates the century-old eucalyptus tree that once grew on the site.

The exterior of Jayna Cooper's house in Los Angeles. "As I was designing my house I kept in mind standard lumber and plywood sizes so that there would be minimal waste," she says. "When choosing materials, I did basic research on cost per square foot and picked out some of the least expensive materials in the building industry. Basic, inexpensive stuff like corrugated sheet metal, stucco, and drywall can look really great if it’s incorporated into the design in a modern and well-thought-out way."

Shope and his wife carefully designed an eco-friendly landscape: For instance, they did not fell any tree with holes that could support an owl’s nest. They also planted flower species that feed hummingbirds and monarch butterflies. Shope laid out the pathway of reclaimed granite slabs that leads toward the Hudson River below.

The first thing landscape designer Laura Cooper asked Devis and Purdy was to recall childhood gardens and outdoor play. In that spirit, she designed their backyard, integrating the high ground with the low just outside the “kids’ wing.” The resulting series of outdoor rooms on this quarter-acre is full of memory and play.

A door next to the bed drops down, opening the room to its surroundings. "It's a fantastic way to ventilate the space, but also makes sleeping in the loft feel like camping when it's down," Eerkes says.

A mature avocado tree shades the hardscaped patio located just outside the great room.

Their property features an abundance of local flora and fauna. “We have deer that come from Griffith Park through our garden,” Judith says.

The upstairs portion of the addition takes advantage of the ocean view beyond. "The second floor achieves a dynamic on its own, with large window bands and roof overhangs with detailing emulated from the original," Grueneisen says. "But despite the significant change in the massing, we believe the final composition results in an integrated and seamless sense of continuity between the different generations of the building."

The main space containing the living and dining area and kitchen was relatively unchanged. "In consideration of the original vision, the additions blend with the original structure, and the basic idea of the open flow between the inside and the outside is maintained and reinforced in all areas," the architect says.

A concrete wall between the garage and the main house is fortified with external insulation and covered with wood cladding and plaster. The additional protection prevents heat transfer between the concrete floor and heated living space.

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.

From fabric choices to pleating, interior designers break down how to select the ideal curtains—and how much you should budget.

“By shifting the 60-degree equilateral grid of the home 18 degrees, it blurred the edges of the lot line so that the user isn’t sure where the property starts or ends,” Marble said. The hexagonal shape also makes the most of passing breezes, changing sunlight, and bird’s eye views.

The owner wanted a property that had the least amount of impact on the environment as possible, while staying within his budget. Eco Steel prefabricated the home’s steel frame, and simple materials filled in the details: metal pan decking composed the ceiling, polished concrete made up the floors, dry wall comprised the rooms, and Douglas fir built-ins were constructed in between.

To impart a high-design feel to the space, architect Mike Jacobs wrapped cabinetry from Ikea with a marble countertop and designed built-in bookshelves around the kitchen and study to help unify the area. Trips to shops in Palm Springs yielded the red side chair and metal magazine rack. The brown suede chair is from MidcenturyLA.

Nestled in a celebrated midcentury neighborhood, the Riley Residence was a 1957 ranch house two doors down from Crestwood Hills, the Los Angeles cooperative development known for its collection of A. Quincy Jones masterpieces. The L-shaped floor plan on a large wooded lot was reimagined by architect Cory Buckner, who remodeled and developed an addition inspired by the nearby icons. Quirky retro charm radiates from the home with pistachio green cabinetry in the eat-in kitchen. These were complemented with some quiet complements like Blizzard countertops by Caesarstone and white tile by Ann Sacks. A nook with a tulip-style table by ModShop, a custom upholstered banquette by Johannes Interiors, and a Caboche chandelier by Foscarini accentuates the home's retro charm.

After a 40-year-old pine tree fell over on a Brentwood estate in Los Angeles, the owner let it lie, and the continued to grow from its newfound horizontal position. He decided to incorporate it into a 172-square-foot office and guest house with the structure floating above the tree. Around the perimeter of the butterfly roof is a clerestory that gives the illusion that the roof is floating.

Storey calls this house the “Eel’s Nest,” after the narrow urban properties that go by that name in Japan. Its façade was originally going to be wood, but because of local building codes and the fact the building is built along the edge of the property line, the exterior had to be fireproof. Storey covered it with stucco instead. “I wanted it to look as rough as possible,” says the architect. “Since it’s such a small house, it needed to be tough-looking.” The workshop at ground level measures less than 200 square feet, but is set up to accommodate any kind of woodworking or welding; when not in use, the architect parks his car inside.

“[The owner] wanted a place that was a sort of retreat, a place for meditation and contemplation,” architect Tom Marble says. “He wanted views, but he also wanted a strong relationship to the outside.”

With its sloped Douglas fir ceiling, expansive glass, and elm built-ins crafted by Wolf Melian, the upstairs study resembles a Crestwood Hills classic. Case Study sofas that double as guest beds meet the client’s request for convertible space. The rug from Amadi Carpets, pillows sewn from vintage Swedish fabric, and painting by Sylvan Lionni inject red into the earthy palette.

“The [home] is a sanctuary, despite being a duplex on a standard lot in a regular urban grid,” Marble says. Irrigation was limited to vegetable beds that feature drought-tolerant landscaping.

The painted-gray concrete deck, edged with quarter-inch thick steel railings, offers sweeping views of the city.

Perched high in the Spanish Pyrenees, this old stone building needed major changes to become habitable again. Originally built in 1900 as a hostel of sorts, its strucutre was not incredibly robust: for instance, its windows couldn't be expanded for risk of weakening the wall. But architect Josep Bunyesc still saw a chance to turn it into a model of energy efficiency.

Bunyesc was asked by a family of four—a couple with two young children, aged 1 and 2—to transform this aged structure into a modern home. The architect wanted something energy-efficient, and while he had several renovations under his belt, he turned to an unusual material to harness the sun's energy: polycarbonate, a rugged plastic common to industrial architecture, sheds, and other lightweight construction.

The Mazess House first “addition”—considered such for the retention of a portion of the original 1919 home’s footprint—was incorporated in 1996 by AIA Award–winning Michael W. Folonis.

Look no further than online shop Rodale's for a well-edited selection of eco-friendly items. Products span clothing to kitchenware to bedding, all selected because they're manufactured in a responsible manner. Rodale publishes some of the world's best-known lifestyle magazines, including Runner's World, Bicycling, Running Times, and Organic Gardening, and its e-commerce venture fits with its mission to promote healthy living. We've gathered a handful of items from the site to give you an idea of the wealth of designs available. Vintage Patchwork Blanket ($625–675)

Louis Poulsen's PH Artichoke Lamp hangs above a platform decked out with Quistgaard candlesticks and an ice bucket, Aalto stools, and a wine rack by Nissen Langaa Denmark. The pink stool by Marie-Louise Hellgren is made from upcycled textile waste from airbag production.

Architect Barbara Bestor added a striped floor of Santander Granada Tile, Douglas Fir cladding, and Granada Serengeti tile flipped to create a one-of-a-kind pattern on the wall.

A wooden mold for an Aalto vase.

In Downtown Los Angeles, Fredrik Carlström has curated a well-rounded collection of Scandinavian design at his concept shop Austere. "I imagined the physical space like if a lifestyle magazine with all my favorite things came to life," he says.

Books and vintage magazines atop a Poul Kjærholm coffee table by Fritz Hansen. The piece in the background is a PK80 daybed.