Set on approximately 1.45 level acres in the heart of west Atherton, this exceptional estate blends historic pedigree with modern livability. Extensively renovated and expanded in 2001, the residence reflects timeless architecture with the scale and amenities expected in one of Silicon Valley's most sought-after neighborhoods. The home, defined by grand proportions, spans over 12,000 livable square feet across three levels plus a guest house. Signature elements include carved stone fireplaces, arched windows and a series of formal and casual spaces designed for both entertaining and everyday living. Amenities are extensive: a luxurious primary suite with dual dressing rooms, steam room and gym; a wine cellar with tasting room; a 10-seat theater; library and billiards room with bar; and a rare 12-car underground garage of over 3,700 square feet finished to a showroom standard. The property includes six bedroom suites in the main residence, along with a two-bedroom guest house with office, ideal for extended stays or multigenerational living. Resort-style grounds feature a pool, spa, outdoor kitchen, rose garden and expansive lawns framed by mature trees. Located close to top private schools, Stanford, Sand Hill & Hwy 280, this is a rare opportunity in a premier Atherton setting.
Single-familyProperty Type
1922Year Built
1.45 acresLot Size
$2,051Price/Sq.Ft.
12 car garageParking
Listed by Billy McNair•DRE #01343603• Coldwell Banker Realty
Listed by Tara Dollinger•DRE #02147788• Dollinger Properties
Contact: 650-862-3266
Bought with Sam Ferdows•DRE #01068512• Commorancy Inc
Est. $10,943 per month, based on comparable rentals
Sale and tax history for 241 Polhemus Ave
Sale History
Tax History
Date
Event
Price
Public Records
Apr 24, 2026
Sold
$22,750,000
$2,051/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #ML82042671
Apr 24, 2026
Pending
—
Apr 24, 2026
Pending
—
Apr 24, 2026
Sold
$22,750,000
$2,051/sq ft
Apr 24, 2026
Sold
$22,750,000
$2,051/sq ft
Apr 13, 2026
Listed
$24,998,000
$2,254/sq ft
Apr 13, 2026
Listed
$24,998,000
$2,254/sq ft
Set on approximately 1.45 level acres in the heart of west Atherton, this exceptional estate blends historic pedigree with modern livability. Extensively renovated and expanded in 2001, the residence reflects timeless architecture with the scale and amenities expected in one of Silicon Valley's most sought-after neighborhoods. The home, defined by grand proportions, spans over 12,000 livable square feet across three levels plus a guest house. Signature elements include carved stone fireplaces, arched windows and a series of formal and casual spaces designed for both entertaining and everyday living. Amenities are extensive: a luxurious primary suite with dual dressing rooms, steam room and gym; a wine cellar with tasting room; a 10-seat theater; library and billiards room with bar; and a rare 12-car underground garage of over 3,700 square feet finished to a showroom standard. The property includes six bedroom suites in the main residence, along with a two-bedroom guest house with office, ideal for extended stays or multigenerational living. Resort-style grounds feature a pool, spa, outdoor kitchen, rose garden and expansive lawns framed by mature trees. Located close to top private schools, Stanford, Sand Hill & Hwy 280, this is a rare opportunity in a premier Atherton setting.
bridgeMLS, Bay East AOR, or Contra Costa AOR #ML81997107
Jan 8, 2026
Listing Removed
—
Oct 2, 2025
Relisted
—
Oct 1, 2025
Listing Removed
—
Jul 20, 2025
Listed
*
Public Records
Feb 19, 1987
Sold
$1,650,000
$149/sq ft
Public Records
Jul 26, 1983
Sold
$1,225,000
$110/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$80,440 (+1.2%)
$2,443,062 + $4,777,645
$7,220,707
2024
$79,475 (+1.6%)
$2,443,062 + $4,777,645
$7,220,707
2023
$78,238 (+2.8%)
$2,395,159 + $4,683,966
$7,079,125
2022
$76,072 (+1.6%)
$2,348,196 + $4,592,125
$6,940,321
2021
$74,870 (+2.3%)
$2,302,153 + $4,502,084
$6,804,237
2020
$73,201 (−3.1%)
$2,257,013 + $4,413,809
$6,670,822
2019
$75,554 (+5.1%)
$2,233,871 + $4,368,552
$6,602,423
2018
$71,865 (+2.5%)
$2,190,070 + $4,282,895
$6,472,965
2017
$70,083 (+0.7%)
$2,105,028 + $4,116,587
$6,221,615
2016
$69,586 (+1.9%)
$2,105,028 + $4,116,587
$6,221,615
2015
$68,319 (+0.7%)
$2,063,753 + $4,035,870
$6,099,623
2014
$67,873 (+5.4%)
$1,992,936 + $3,897,380
$5,890,316
2012
$64,399 (+1.9%)
$1,983,929 + $3,879,766
$5,863,695
2011
$63,222 (+1.3%)
$1,945,029 + $3,803,693
$5,748,722
2010
$62,381 (+0.6%)
$1,906,892 + $3,729,112
$5,636,004
2009
$62,032 (+2.1%)
$1,892,641 + $3,701,243
$5,593,884
2008
$60,772
$1,897,138 + $3,710,037
$5,607,175
Public record
Public record
Permits
Beds
5
Baths
8.5
Stories
2
Lot width
—
Lot depth
—
Lot size
1.45 Acres
Year renovated
2000
Sq. Ft.
6,558
Year built
1922
Style
Single Family Residential
County
San Mateo County
APN
070040080
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 15, 2026.
Feb 4, 2008 • Final
Converted
Remove a tree.
Demolition
Sep 29, 2004 • Final
Converted
Perform an interior remodel on a residential building.
Remodel
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Parking
Parking Information
Garage (Minimum): 12
Garage (Maximum): 12
Parking Description: Attached Garage, Electric Car Hookup, Gate/Door Opener, Guest/Visitor Parking, Room for Oversized Vehicle, Underground Parking