The late architect Robert Overstreet spent roughly a decade perfecting his dream home, a sculptural geometric retreat nestled among the ancient redwoods of Marin County. Completed in 1968 atop a steep hillside in Corte Madera, about 15 miles north of San Francisco, the cantilevered residence is equal parts bold architectural experiment and serene woodland sanctuary.

Overstreet, a San Francisco architect known for his commercial work and unconventional designs, conceived the residence as a personal labor of love. Hidden at the end of a long private driveway and enveloped by towering trees and lush ferns, the home is quietly one of Northern California‘s more distinctive midcentury residences. Much of the structure is supported by a series of massive poles that extend from the ground to the roofline, with long beams bolted to the posts to carry the weight of decks and living spaces. Last purchased in 2023 for $2.26 million, the property has since undergone a comprehensive, down-to-the-studs restoration and update.

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summit estate Corte Madera Robert Overstreet

The home’s living spaces spill onto seven balconies and decks.

Steven J. Magner

The renovation preserves the home’s original spirit while introducing nearly every contemporary comfort imaginable. Period details include a stained-glass front door restored by artisans in Berkeley. The redesign also tackled some of the home’s quirkier elements, including low ceilings and uneven floors, while reworking the layout for modern living. Rising three stories through the canopy, the residence is topped by dramatic glass cube skylights that flood the interiors with refracted natural light.

summit estate Corte Madera Robert Overstreet

The ceiling soars over the kitchen’s doube-wide waterfall island.

Steven J. Magner

The five-bedroom, five-and-a-half-bath abode spans roughly 4,500 square feet. A bespoke Italian kitchen anchors the main living spaces with frameless cabinetry, Calacatta marble, and a quartz waterfall island, while a walk-in pantry is cleverly concealed behind pivoting doors. Elsewhere, the bathrooms feature heated floors, illuminated mirrors, floating vanities, and floor-to-ceiling tile.

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summit estate Corte Madera Robert Overstreet

The bedrooms have views into the treetops.

Steven J. Magner

Nearly every room opens onto one of seven balconies and decks suspended among the trees. Beyond the main house, the 1.36-acre property includes a detached two-story guesthouse with its own kitchen and laundry facilities, a flat turf field, and parking for up to 18 vehicles. A dedicated wellness retreat aligns the property with contemporary luxury residential design, featuring a cedar barrel sauna, cold plunge, and outdoor shower oriented directly toward the redwoods.

The residence has returned to the market for just under $8 million with Schneur Scop of Real Brokerage Technologies, who also served as project manager and designer on the renovation.

Click here to see more photos of the Marin County home.

summit estate Corte Madera Robert Overstreet

Steven J. Magner

Authors

Abby Montanez

Abigail Montanez is a staff writer at Robb Report. She has worked in both print and digital publishing for over half a decade, covering everything from real estate, entertainment, dining, travel to…