Halfway through a pregnancy isn’t exactly the ideal time to buy a house. So after spending months scouting San Francisco’s Victorians and turnkey cookie-cutters—and almost defecting to the East Bay—Lorena Siminovich and Esteban Kerner decided to put the hunt on hold until after their baby was born. But then one afternoon Kerner, a design director with Old Navy, logged on to Craigslist on a whim. He saw a below-market listing for a single-family home in Noe Valley, their neighborhood of choice. With crumbly brick cladding, peeling rust-brown paint, and rotting garage doors, the house lacked curb appeal. But the Argentine couple was drawn to the interior. "It was amazing and strange at the same time," says Kerner of the 1,485-square-foot, multilevel, midcentury maze. "Mind-boggling," adds Siminovich. "It was just a knot of doors and a series of insane stairs to nowhere."

“We wanted the wood to appear as natural as possible, so leaving the larch untreated was the first choice,” Bas explained. But the shape of the house would make the wood turn gray unevenly, so they blackened the larch. “The clients were excited with the dark color as it helps the house blend into the trees. They didn’t want the anything excessive or showy.” But blackened timber comes with its own challenges. Since it absorbs more heat, a larger air cavity was built behind the wood to keep it cool.

The courtyard is just one of many open spaces that will be highly utilized—in the non-winter months anyway. Concrete worked well with developing the language of FlatPak. The second level is a wood panel that can be clad in corrugated metal or cedar—different layers that can be plugged in like covers on your cellphone.

The home, clad in natural Australian timber, enjoys a sense of lightness thanks to slender columns that let it float over the dunes. The driveway and entry, at the rear of the building, have an understated design to build to the interior's magnificent ocean views. Firm director Phil Snowdon explains, “By creating an architectural form that draws your eye and leads you up the steep driveway, we could engage new visitors in a welcoming process that first reveals the object and then slowly reveals the main event, being the view."

Gaffney's cousin lives in the house just in front. To give a bit of perspective, this photo was likely taken just feet in front of the waist-high wall that runs between the two houses's yards.

A familiar scene in the Benoit home: Peter paints at the Steelcase desk—"I do all my work here," he says—while Ando sits nearby, waiting for attention.

The space is also adorned with timber cladding, as seen on the entry door.

The exposed ceiling beams and inserted steel framing system are visible in the lower level, where Lange and Dixon relax with their son Paul.

A good dose of inspiration from Luis Barragán turned a dark and beleaguered midcentury house into a family home for the ages. The paint colors chosen by the residents and architect Linda Taalman are American Cheese and Blushing Bride, both by Benjamin Moore, creating a tapestry of color and texture.

Architect Christi Azevedo, along with homeowners Lorena Siminovich and Esteban Kerner, transformed this 1,485-square-foot, multilevel, mid-century maze into a modern and efficient family home in just three months. “It was the craziest frickin’ thing,” laughs Azevedo. “It was like a Tetris game, putting it all together, trying to squeak out space wherever we could.” Purchased as if straight out of 1955, the home is now the ideal small space for Siminovich and Kerner to raise their young daughter, Matilda.

The back of the house has sliding doors that open far enough to expose the entire livingroom to the families' back yard.

Timber battens were used on north-facing windows to prevent excessive heat in the summer. The exterior is clad in Scyon’s Linea weatherboard and covered in Dylux’s Western Myall paint. Beneath the upper floor, a little nook makes for the perfect covered carport and storage spot for surfboards.

Living Area Bischoff’s team retained the exposed brick on the interior, painting much of it white to help the space reflect sunlight. “There was an interest in having an open, more contemporary layout, but we still wanted some sense of living in this building that’s 100 years old,” Bischoff says. “That motivated us a lot to keep the brick. It’s a very subtle echo of what the house originally was.” Enclosing the ductwork would have forced the architects to lower the ceiling or install a subpar air-conditioning system. So it was left exposed, contributing to the floor’s loftlike atmosphere. New meets old with the furnishings as well: An antique barbershop pendant provides contrast to a sculptural lamp and a rug from Anthropologie. Investment buys were made with budget in mind, like the leather sofa scored at ABC Carpet & Home’s outlet store.

A new addition to Sea Ranch’s enclave of utopian homes, this structure (and the separate guesthouse seen here) clad in rough concrete and Cor-ten steel seamlessly blends in with its half-a-century-old California neighbors. Designed by the dean of the Woodbury School of Architecture and the head of the University of Oregon’s architecture department, its spaces flow into one another underneath an angled plywood ceiling and illuminate built-in furniture crafted from vertical-grain Douglas fir.

The lovely cornflower-blue kitchen cabinets in this Brooklyn, New York, home by Elizabeth Roberts Architecture & Design were professionally painted.

Subverting the traditional, conservatively cozy British barn conversion, Carl Turner created a getaway in rural Norfolk for himself and his friends to visit, repose, and consider the beauty of agrarian minimalism. Turner reclaimed most of the timber used for the flooring as he renovated buildings in London. He thought his stockpile was big enough for the Ochre Barn, but the scale of the place defeated him. The solution, surprisingly, was eBay, turning up an old mill’s worth of boards.

Maintenance problems can be extremely expensive to repair.

Husband-and-wife founders of Calico Wallpaper Rachel and Nick Cope show how easy it can be to put a personal, design-led touch on loft living—even when it’s a rental. When the Copes rented a Red Hook loft in an industrial 1860s warehouse, the couple turned their rental into a testing ground for their marbleized wallpaper business and installed wallpaper in each of their rooms. The custom pieces take inspiration from the loft’s immediate surroundings and characteristics—from the silver-and-gold marbled mural that complements the loft’s exposed structural beams to a color-gradient wallpaper in the primary bedroom that takes cues from the sunset seen from Red Hook.

The Perth residence of Renee Coleman via the Design Files.

On one side of the house, a white central staircase leads to a split-level landing the Robertsons call "the reading room." "We needed a place to hang out and for the kids to read," explains owner Vivi Nguyen-Robertson. Awaiting the birth of the couple's son, she relaxes in a built-in reading nook in the library.

Roberto Burneo designed this home for his eldest niece, her husband, and their three young children in a suburb outside Quito, the capital of Ecuador. The house is set on a flat expanse of land with fruit trees, and Burneo's design "guides the social areas inward in order to link them to the gardens.”

The ground-floor sauna, one of the home’s central gathering spots, is built from stained alder. The electric heater is from the Finnish company Iki.

Burneo took advantage of the perpendicular orientation of the volumes to create outdoor spaces that look out to the gardens.

Designed in 1960, the house was originally a lodge to accommodate horse trails. Throughout the years, the house has expanded with various additions and renovations.

Sawn wood planks add texture to the interior walls.

Burneo oriented the house in a pair of perpendicular volumes. The ground floor houses the public areas, including a study, while the top volume, housing the bedrooms and a family room, is oriented north-south, allowing for warm sunlight and a visual orientation toward the gardens.

When the Casali family gave Michael Krus and Prishram Jain of TACT Architecture free rein to work with unconventional materials, the architects responded by creating a geometric 4,300-square-foot smart home encased in aluminum panels by Agway Metals. The front facade features Cor-Ten steel fabricated by Praxy Cladding.

The custom kitchen counters are concrete, and the yellow dining chairs add a welcome splash of color.

“There’s a presence to that place—it’s vast, and constantly shifting,” Moffitt says. “It was clear that this house should be an observation shed for the changing landscape beyond.”

Burneo added exposed brick to his palette of interior materials.

The bedroom—accessible via the living room—is where the couple will place a bassinet for their newborn.

An Alvar Aalto table is surrounded by a quartet of the designer’s Chair 65.

Some 35 percent of the materials from the renovation were resurrected in the yard: Redwood panels became fencing. Blocks cut from original concrete patios form the snake wall. And Purdy plans to crochet colorful cozies over various branches and stumps.

Operable timber shutters and screens offer protection from extreme weather. Zoning the house into three distinct masses creates a partly sheltered courtyard to make this year-round blending of the indoors and outdoors possible.

With little to no permitting required because of its small size, Sett Studio units can be used for an extra bedroom, a yoga studio, a hydroponics growing area or an office space, like this 96-square-foot one shown here.