Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California

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By Laura Mauk / Published by Dwell
Nature informs every aspect of a Northern California residence.

If ever there was a design for a home that was informed almost exclusively by its setting, it’s the one architect Greg Faulkner devised for a wooded site in Northern California. The construction is a rigorously pared-down display of architectural elements that facilitate engagement with the natural environment. "This was a watershed project for the firm," Faulkner says. "We were intensely focused on producing a quiet presence. The existing use patterns of the site and the path of the sun and the wind drove the design."

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 1 of 13 - Located in Orinda, California, a three-bedroom house by architect Greg Faulkner took its first aesthetic cue from a large oak tree on the site. Cor-Ten steel panels clad the exterior, while white oak offers a material counterpoint on the interior. A 12-foot-wide sliding pocket wall opens the living/dining area to a terrace with a Wave Chaise longue by Paola Lenti. The landscape design is by Thuilot Associates.  

Located in Orinda, California, a three-bedroom house by architect Greg Faulkner took its first aesthetic cue from a large oak tree on the site. Cor-Ten steel panels clad the exterior, while white oak offers a material counterpoint on the interior. A 12-foot-wide sliding pocket wall opens the living/dining area to a terrace with a Wave Chaise longue by Paola Lenti. The landscape design is by Thuilot Associates.  

The residence, located in Orinda, appears as a minimalist steel sculpture nestled at the base of a steep hillside cloaked in dark green foliage. "It’s in the wrinkle just before the Oakland hills at the foot of the Hayward fault," Faulkner says. "Those big trees felt like refuge before we even built anything. They’re a free material that became part of the house." 

But before there was sculpture, there was a dated house on an unkempt lot.

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 2 of 13 - DZINE Concept did the interior design throughout. The dining room features a Liquid table by Baxter and Charme chairs from Busnelli. 

DZINE Concept did the interior design throughout. The dining room features a Liquid table by Baxter and Charme chairs from Busnelli. 

"These rusting masses of steel change and refresh every time it rains, just like the landscape." Greg Faulkner, architect

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 3 of 13 - In the kitchen, bar stools by Living Divani pull up to an island with Bretonstone countertops; the faucet is by Blanco. 

In the kitchen, bar stools by Living Divani pull up to an island with Bretonstone countertops; the faucet is by Blanco. 

Faulkner’s clients—a couple with two young sons—searched for the right property for a year and a half. "We lived in Oakland for seventeen years," the husband says. "We wanted a bigger yard for the boys to explore." When the couple discovered the site in Orinda, they were taken with the lot but not the existing home. "The house was ramshackle and the vegetation was overgrown," the husband says. The wife adds, "It was not something we felt we could work with. But the land was beautiful. I knew it could be a place to build the house we’d always talked about."

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 4 of 13 - The living room features a sectional sofa and leather chair by Zanotta, coffee tables by Porro, a Kymo rug, and a floor lamp from Flos. 

The living room features a sectional sofa and leather chair by Zanotta, coffee tables by Porro, a Kymo rug, and a floor lamp from Flos. 

The home they’d always talked about was a sustainable and light-filled one with a modern presence. And when they saw Faulkner’s own home in nearby Lafayette, they knew he should be their architect. "His house also has steel as well as solar panels," the husband says. The couple asked Faulkner to walk the site with them. "We climbed up to the roof of the old house and sat in the shade of a big oak tree," Faulkner says. "It was a hot day and that tree was a place to gather. I repeated that idea for the new house."

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 5 of 13 - The ceiling is untreated white oak. 

The ceiling is untreated white oak. 

The architect began by situating the new residence under the shade of the tree, maintaining the footprint of the previous house. "This avoided additional grading and left the hillside open and natural," Faulkner says. "And when I was sitting on the roof that day, I thought, ‘Wow, it’s great to be this close to the tree.’ It’s intimate because you can see every detail." The architect found great inspiration in the oak, but also recalled the designs of Le Corbusier. "I thought of his mezzanine designs for the Unité d’habitation," Faulkner says. "That’s how the master suite and the office were conceived. They’re part of a mezzanine level that connects to the hillside and is suspended within the two-story living space—they just kind of float." 

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 6 of 13 - Overlooking the double-height living/dining area is the mezzanine level, where the master suite and office are located. 

Overlooking the double-height living/dining area is the mezzanine level, where the master suite and office are located. 

"You see the tree and smell the oak when you walk in the house." Greg Faulkner

Reynaers windows—expansive panes with thermally broken aluminum frames—evoke the feeling of being outdoors while also providing security and comfort. "These windows are the most solid I’ve seen in a residential setting," the husband says. "They have a high rating for retaining heat and reflecting solar gain. They’re going to pay off in spades." 

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 7 of 13 -

Faulkner dressed the exterior of the house with Cor-Ten steel—another material that will pay off in spades since it’s relatively affordable and requires practically no maintenance. "For me, the materials aren’t optional," the architect says. "They come from a feeling I get when I’m on the site. You really feel the changeable character of this landscape. These rusting masses of steel refresh every time it rains, just like the landscape." The steel is a textural counterpoint to the unfinished white oak that Faulkner applied to the ceilings and some of the walls and floors. "You see the tree and smell the oak when you walk in," he says. Basalt flooring and white gypsum walls in some areas help to break up the oak, making it more of a focal point. 

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 8 of 13 - A second-floor "pacing" deck marks Faulkner’s design, as it gives the residents the feeling of being indoors and in the landscape at once. "The deck runs along the second floor, adjacent to a bedroom," says the architect, who shaded the area with perforated steel screens and more solid Cor-Ten steel. 

A second-floor "pacing" deck marks Faulkner’s design, as it gives the residents the feeling of being indoors and in the landscape at once. "The deck runs along the second floor, adjacent to a bedroom," says the architect, who shaded the area with perforated steel screens and more solid Cor-Ten steel. 

But the landscape steals the spotlight at almost every turn, especially in the main living area, where a 12-foot-wide opening ties the space to the outdoors. "There’s a seasonal creek on the site and strong breezes flow down its path, so I opened the house with big pocket doors to the south and a private yard," Faulkner says, adding, "My clients say that opening those doors cools the house instantly, so they don’t have to use the air conditioner very often."

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 9 of 13 - A charcoal triptych by Gina Jacupke hangs above the Living Divani bed in the master suite.

A charcoal triptych by Gina Jacupke hangs above the Living Divani bed in the master suite.

Faulkner also designed a rainwater collection system for the toilets, washing machine, and landscape irrigation. An 8.1kW photovoltaic system provides energy for the house, and ECM motors and variable-speed heat pumps limit energy use and control heating and cooling. "The mechanical and electrical systems were designed at 44.9 percent improvement over code," Faulkner says.

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 10 of 13 - The property is on an ex-urban infill site located on almost eight acres of a Bay Area suburb. Technically a remodel, the house utilized the footprint of the existing house as a basis for a new floor plan. 

The property is on an ex-urban infill site located on almost eight acres of a Bay Area suburb. Technically a remodel, the house utilized the footprint of the existing house as a basis for a new floor plan. 

In the end it’s a house that satisfies. "My husband and I both grew up where there was a lot of land, and we have careers that focus on the environment," the wife says. "A house that brings the outdoors into our lives seemed critical." It was a need Faulkner took to heart. "If you count glass as just space, we built this with four materials," he says. "Any pretense is stripped away. Then, it’s just living."   

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 11 of 13 - In the master bathroom, a tub and sink from ADM join Cifial fixtures. 

In the master bathroom, a tub and sink from ADM join Cifial fixtures. 

"Those big trees felt like refuge before we even built anything. They’re a free material that became part of the house." Greg Faulkner

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 12 of 13 - An opening in a Cor-Ten steel—clad wall on the terrace frames the Paola Lenti chaise longue.  

An opening in a Cor-Ten steel—clad wall on the terrace frames the Paola Lenti chaise longue.  

 

Nature Drove the Design of This Sculptural, Cor-Ten Steel House in Northern California - Photo 13 of 13 -

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