2025 RDAA | Architectural Interiors | STEEL Life | Zack | de Vito Architecture + Construction

For a 1970s condominium renovation, Jim Zack, FAIA, and Leland Classen seized the opportunity to run with their design vision. “A good client is willing to let us do what we want,” Jim says. “The freedom allows us to explore and build.”

The owner wanted to wake up to views of the San Francisco skyline and open up the unit’s floor plan for entertaining and showcasing his art collection. The designers constructed a 20-foot-long, 8-foot-tall sliding interior door of steel panels that visually connects the bedroom to the living areas when open. The curved movable wall rolls smoothly on casters in a steel track routed into the walnut floor and closes against a steel elliptical-shaped chase, which houses a heating vent and the chimney flue of the unit below.

Jim and Leland are no strangers to steel, having incorporated the industrial material in previous residential projects. In this unit, they also expertly designed, fabricated, and installed the material into a bespoke kitchen island, backsplash, and minimalist trim for the sliding door frame. Steel shelving, panels, and casework line the walls of the unit. “The relentless use of this steel is one of the strongest parts of this design,” the jury said. “They didn’t decide to use a different material in one room versus the other. This is what an architectural interior is.”




Zack | de Vito Architecture + Construction
STEEL Life
San Francisco, California


Project Credits

Architect: Jim Zack, FAIA, principal in charge; Leland Classen, project architect, Zack | de Vito Architecture + Construction, San Francisco

Builder, Interior Designer, Lighting Designer, Steel Fabricator: Zack | de Vito 

Furniture Designer: Jim Zack, Zack | de Vito 

Furnituremaker: Lawrence Gandsey Furniture

Millwork: Cabinets Quick, Los Angeles; Zack | de Vito 

Steel Supplier: Van Bebber Brothers

Wood Slabs for Custom Furniture: Evan Shively, Arborica

Project Size: 1,000 square feet

Construction Cost: Withheld

Photography: Bruce Damonte


Key Products

Cabinetry: Treefrog Veneer, Cabinets Quick

Cabinetry Hardware: Schoolhouse Electric Co.

Countertops: Dekton, Spec Ceramics, Mutina America + Z Collection 

Door Hardware: Level (entry); Milcasa (office); Emtek (bathroom); Johnson Hardware (bedroom); Sugatsune (bedroom)

Grilles: Architectural Grille

Faucets: Graff, Hansgrohe 

Lighting, Interior: CSL, Tech Lighting, Moooi, Sonneman, WAC Lighting, Core, Hafele, Matteo Lighting, Modern Lighting, Visual Comfort 

Lighting Control Systems: Lutron

Paint: Vasari, Benjamin Moore

Picture Rail: Arakawa

Range: Bosch induction

Sinks: Franke, Grohe, Laufen 

Skylights: VELUX

Refrigerator: Fisher & Paykel

Toilets: Duravit

Tub: Aquatica

Wallboard: Treefrog Veneer

Washer/Dryer: LG

Window Wall Systems: All Weather Architectural Aluminum