OFF MARKET

Off market dec 2005 for $10M

—

Est. refi paymentEst. refi $161,564/mo

353

•

3 ba

•

176,200

sq ft

621 Old County Rd, Belmont, CA 94002

About this home

621 Old County Rd is a 176,200 square foot multi-family home on a 4.71 acre lot with 353 bedrooms and 3 bathrooms. - it last sold on December 19, 2005 for $10,600,000.

Multi-familyProperty Type

1971Year Built

4.71 acresLot Size

$60Price/Sq.Ft.

Source:Public Records

Redfin Estimate

There isn’t enough information to generate an accurate estimate at this time. Learn More

Market trends in 94002, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

104.6%

0.1% MoM

Median sale price

$2.2M

$62K MoM

Avg. days on market

16d

1 days MoM

Recently sold homes

1 MoM

New listings for sale

OPEN SAT, 1:30PM TO 4PM
$3,750,000
5 beds3 baths2,750 sq ft
15 Waterloo Ct, Belmont, CA 94002
OPEN SAT, 12PM TO 4PM
$1,998,000
3 beds2.5 baths1,450 sq ft
506 Mountain View Ave, Belmont, CA 94002
3D WALKTHROUGH
$2,030,000
3 beds2.5 baths1,890 sq ft
19 Edgewood Pl, Belmont, CA 94002
EARLY ACCESS
$1,938,000
3 beds3 baths2,140 sq ft
48 Rinconada Cir, Belmont, CA 94002
OPEN TODAY, 4PM TO 7PM
$1,918,000
3 beds1 bath1,010 sq ft
202 Hiller St, Belmont, CA 94002
OPEN SAT, 2PM TO 5PM
$1,988,000
3 beds2.5 baths1,631 sq ft
2121 Arthur Ave, Belmont, CA 94002
OPEN SAT, 1:30PM TO 4PM
$1,638,000
3 beds1 bath1,190 sq ft
1061 Granada St, Belmont, CA 94002
3D WALKTHROUGH
$3,688,000
5 beds3 baths3,173 sq ft
1618 Fairway Dr, Belmont, CA 94002
See all

Provided by Redfin

Sale history for 621 Old County Rd

Year

Property tax

Land + Additions

Assessment*

2025

$778,301 (+4.2%)

$24,037,447 + $13,776,931

$37,814,378

2024

$746,874 (+6.7%)

$23,566,125 + $13,506,796

$37,072,921

2023

$699,690 (−0.1%)

$23,104,045 + $13,241,957

$36,346,002

2022

$700,690 (−1.8%)

$22,651,025 + $12,982,311

$35,633,336

2021

$713,456 (+6.4%)

$22,206,888 + $12,727,756

$34,934,644

2020

$670,635 (+3.5%)

$21,771,459 + $12,478,193

$34,249,652

2019

$648,200 (+6.0%)

$21,548,220 + $12,350,245

$33,898,465

2018

$611,264 (+4.3%)

$21,125,706 + $12,108,084

$33,233,790

2017

$586,295 (+8.0%)

$20,305,370 + $11,637,913

$31,943,283

2016

$542,893 (−3.0%)

$20,305,370 + $11,637,913

$31,943,283

2015

$559,453 (+4.9%)

$19,907,226 + $11,409,719

$31,316,945

2014

$533,377 (+8.2%)

$19,224,104 + $11,018,192

$30,242,296

2012

$492,855 (+5.6%)

$19,137,222 + $10,968,396

$30,105,618

2011

$466,937 (+7.1%)

$18,761,983 + $10,753,330

$29,515,313

2010

$436,067 (+145.7%)

$18,394,101 + $10,542,481

$28,936,582

2009

$177,455 (+1.9%)

$18,256,629 + $10,463,690

$28,720,319

2008

$174,099

$7,401,925 + $3,846,879

$11,248,804

Tax history for 621 Old County Rd

Year

Property tax

Land + Additions

Assessment*

2025

$778,301 (+4.2%)

$24,037,447 + $13,776,931

$37,814,378

2024

$746,874 (+6.7%)

$23,566,125 + $13,506,796

$37,072,921

2023

$699,690 (−0.1%)

$23,104,045 + $13,241,957

$36,346,002

2022

$700,690 (−1.8%)

$22,651,025 + $12,982,311

$35,633,336

2021

$713,456 (+6.4%)

$22,206,888 + $12,727,756

$34,934,644

2020

$670,635 (+3.5%)

$21,771,459 + $12,478,193

$34,249,652

2019

$648,200 (+6.0%)

$21,548,220 + $12,350,245

$33,898,465

2018

$611,264 (+4.3%)

$21,125,706 + $12,108,084

$33,233,790

2017

$586,295 (+8.0%)

$20,305,370 + $11,637,913

$31,943,283

2016

$542,893 (−3.0%)

$20,305,370 + $11,637,913

$31,943,283

2015

$559,453 (+4.9%)

$19,907,226 + $11,409,719

$31,316,945

2014

$533,377 (+8.2%)

$19,224,104 + $11,018,192

$30,242,296

2012

$492,855 (+5.6%)

$19,137,222 + $10,968,396

$30,105,618

2011

$466,937 (+7.1%)

$18,761,983 + $10,753,330

$29,515,313

2010

$436,067 (+145.7%)

$18,394,101 + $10,542,481

$28,936,582

2009

$177,455 (+1.9%)

$18,256,629 + $10,463,690

$28,720,319

2008

$174,099

$7,401,925 + $3,846,879

$11,248,804

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Permits

Oct 8, 2025 • Final

Alteration

Remove and replace headers at a garage.

Remodel

Jun 23, 2025 • Final

Com

Resurface the pool and spa at an apartment complex.

Pool and hot tub

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

Interior

Bathroom Information
# of Full Baths: 3

Fireplace Information
# of Fireplaces: 2
Has Fireplace

Room Information
# of Rooms: 546

Exterior

Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Average
Building Type: Building

View Information
View: Average

Property Information
Gross Sq. Ft: 176,200
# of Stories: 3
Legal Description: 4.701 AC MOL ON NELY LN OF OLD COUNTY RD LYING ADJ TO BLOCK 19 STERLING DOWNS NO 1 ACREAGE CITY OF BELMONT

Parking & Garage Information
# of Parking Spaces: 126

Lot Information
# of Buildings: 1
Land Sq. Ft: 205,278
Legal Block Number: 19
Acres: 4.7125
Depth Footage: 442
Front Footage: 217
Zoning Code: R40000
County Use Description: APARTMENT - LARGE (50+ UNITS)

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 353
Baths: 3.0
Sq. Ft.: 176,200
Stories: 3.0
Lot Size: 4.71 acres
Style: Multi-Family (5+ Unit)
Year Built: 1971
Year Renovated: 1971
County: San Mateo County
APN: 040271380

Home facts updated by county records on Sep 2, 2026

Around this home

Schools

Nesbit Elementary School

Public K-8 • Assigned • 0.3mi

6/10

Carlmont High School

Public 9-12 • Assigned • 1.4mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

3/10 Heat Factor

7 days above 87° expected this year, 15 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

12 unhealthy days expected this year, 12 days in 30 years

Provided by First Street

Historical weather

Belmont, CA • 94002

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 10.8 hours in June and 5 hours in December, placing it above the U.S. average for solar exposure.

10.8 hrs

5 hrs

JuneDecember

Provided by Shadowmap

Is this your home?

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New listings for sale in 94002

OPEN SAT, 1:30PM TO 4PM

$3,750,000

5 beds3 baths2,750 sq ft

15 Waterloo Ct, Belmont, CA 94002

OPEN SAT, 12PM TO 4PM3D WALKTHROUGH

$1,998,000

3 beds2.5 baths1,450 sq ft

506 Mountain View Ave, Belmont, CA 94002

3D WALKTHROUGH

$2,030,000

3 beds2.5 baths1,890 sq ft

19 Edgewood Pl, Belmont, CA 94002

EARLY ACCESSCOMPASS COMING SOON

$1,938,000

3 beds3 baths2,140 sq ft

48 Rinconada Cir, Belmont, CA 94002

OPEN TODAY, 4PM TO 7PM

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3 beds1 bath1,010 sq ft

202 Hiller St, Belmont, CA 94002

OPEN SAT, 2PM TO 5PMVIDEO TOUR

$1,988,000

3 beds2.5 baths1,631 sq ft

2121 Arthur Ave, Belmont, CA 94002

OPEN SAT, 1:30PM TO 4PM

$1,638,000

3 beds1 bath1,190 sq ft

1061 Granada St, Belmont, CA 94002

3D WALKTHROUGH

$3,688,000

5 beds3 baths3,173 sq ft

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Home values near 621 Old County Rd

Data from public records.

Address	Redfin Estimate
645 Old County Road, Belmont, CA 47 Beds \| 43 Baths \| 134038 Sq. Ft.	$5,742,813
549 Cambridge Street, Belmont, CA 4 Beds \| 2 Baths \| 1610 Sq. Ft.	$2,084,135

Address	Redfin Estimate
545 Cambridge Street, Belmont, CA 4 Beds \| 2 Baths \| 1610 Sq. Ft.	$2,191,286
541 Cambridge Street, Belmont, CA 3 Beds \| 2 Baths \| 1300 Sq. Ft.	$1,974,964

Address	Redfin Estimate
543 Cambridge Street, Belmont, CA 3 Beds \| 1 Baths \| 1010 Sq. Ft.	$1,649,448
547 Cambridge Street, Belmont, CA 3 Beds \| 1 Baths \| 1420 Sq. Ft.	$1,669,442

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Market trends in 94002, CA

Sale history for 621 Old County Rd

Tax history for 621 Old County Rd

Permits

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Is this your home?

Nearby similar homes

New listings for sale in 94002

Home values near 621 Old County Rd

More real estate resources