923 Hayne Road

• Sun Oct 5, 2:00 pm - 4:00 pm

  First time ever on the market!

For the very first time in its storied history, this 1936 family estate is being offered to the public. This classic English Tudor is a landmark in its own right, a home that gracefully bridges Hillsborough's past and present. Set on nearly an acre of level land with views of the Bay and San Francisco skyline, the residence embodies timeless elegance. Its centerpiece is a remarkable floating spiral staircase anchored only at the bottom and top. With a large open kitchen connecting to the family room, plus 5 bedrooms and 5 full bathrooms (2 half baths), the estate is ready and waiting for its next owner (some photos are virtually staged)! There is a bedroom, library and full bathroom on the main level. The primary bedroom and 3 add'l bedrooms are upstairs. Outdoors, the gardens carry the signature of renowned landscape architect Thomas Church, whose designs shaped much of California's most beautiful private estates with broad lawns, graceful plantings and private spaces. Built by the Wisnoms, one of the founding families of San Mateo, The National Bank of San Mateo and cousins of Wisnoms Hardware family. This offering represents a rare opportunity: to own a piece of Hillsborough history and to become the next steward of a home designed with both legacy and livability at its core.

Days on Market

15 days

Current Status

Active

Original Price

$5,995,000

List Price

$5,995,000

On Market Date

Sep 19, 2025

Property Type

Single Family Home

Area

442 - Hillsborough Park Etc.

Zip Code

94010

MLS ID

ML82022191

APN

031-111-020

Year Built

1936

Stories in Building

2

Possession

Unavailable

Data Source

MLSL

Origin MLS System

MLSListings, Inc.

Bed

5

Bath

7 (5/2)

Parking

3

Attached Garage

SQ FT

5,050

SQ FT Source

Unavailable

Lot SQ FT

42,570.0

Lot Acres

0.977273 Acres

Cooling

None

Dining Room

Formal Dining Room

Disclosures

NHDS Report

Family Room

Kitchen / Family Room Combo, Separate Family Room

Foundation

Other

Fire Place

Family Room, Living Room, Primary Bedroom, Other

Heating

Forced Air

Fee

Unavailable

MLS and other Information regarding properties for sale as shown in Theo have been obtained from various sources such as sellers, public records, agents and other third parties. This information may relate to the condition of the property, permitted or unpermitted uses, zoning, square footage, lot size/acreage or other matters affecting value or desirability. Unless otherwise indicated in writing, neither brokers, agents nor Theo have verified, or will verify, such information. If any such information is important to buyer in determining whether to buy, the price to pay or intended use of the property, buyer is urged to conduct their own investigation with qualified professionals, satisfy themselves with respect to that information, and to rely solely on the results of that investigation.

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