1200 Armsby

Hillsborough, CA, 94010

For Sale $28,995,000

11beds
12.5baths
18,535sqft
2.44acres

A secluded trophy estate in the heart of highly coveted Lower North Hillsborough, this extraordinary 2.4+ acre property offers rare scale and privacy on one of the towns largest parcels. Originally designed by acclaimed architects John Bakewell Jr. and Ernest Weihe, the French Chateau-inspired residence was once home to Hollywood icon Bing Crosby and is rich with storied provenance, including connections to the legendary Seabiscuit and curated antique details from the Hearst Collection. Thoughtfully updated by the current owner, the home spans four levels and features 11 bedrooms, 10 full baths, and 5 half baths, blending grand architectural presence with a warm, livable layout. Designed for both intimate daily living and elegant entertaining, the floor plan includes multiple salons, a formal dining room, a wood-paneled library, a private office, and a distinct guest wing. The park-like grounds showcase sweeping lawns, a resort-style pool with fountains, and expansive open space, creating a serene and majestic setting. With its remarkable history, refined craftsmanship, and exceptional acreage, this is a truly irreplaceable legacy estate an unparalleled opportunity to own a landmark property from California's Golden Era.

Listing agent:

License #

Golden Gate Sotheby's International Realty

Identification

Street Address1200 Armsby

City / State / ZIPHillsborough, CA 94010

Listing StatusFor Sale

List Price$28,995,000

MLS NumberML82038870

Property TypeResidential Single Family Residence

Key Stats

Bedrooms11

Bathrooms (Full / Half)10 full, 5 half

Living Area (Sq Ft)18,535 sq ft

Lot Size (Acres / Sq Ft)2.44 acres

Year Built1929

Price Per Sq Ft$1,564.34

Interior

FireplaceFamily Room

HeatingElectric

Cooling / ACNone

FlooringCarpet, Tile, Wood

AppliancesDishwasher

Exterior & Property

Pool / SpaIn Ground

Garage / Parking Spaces8 spaces

Stories / Levels4 stories

Location

Neighborhood / Community699 - Not Defined

CountySan Mateo

Listing Meta

Days On Market17 days

Date ListedJuly 11, 2026

Listing AgentJenn Gilson — Golden Gate Sotheby's International Realty

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1200 Armsby is a Residential Single Family Residence property located in Hillsborough, California, featuring a 2.440 acre lot, 18,535 sqft, 11 bedrooms, 10 full, 5 half baths, MLS #ML82038870.

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Data last modified: 2026-07-11 19:07:03