Google street view image for 851 Regulus St, Foster City, CA 94404

Off market sep 1969 for $34K

$1,898,726

Est. refi paymentEst. refi $233/mo

•

2 ba

•

1,950

sq ft

851 Regulus St, Foster City, CA 94404

About this home

851 Regulus St is a 1,950 square foot house on a 6,026 square foot lot with 4 bedrooms and 2 bathrooms. - it last sold on September 08, 1969 for $34,500. Based on Redfin's Foster City data, we estimate the home's value is $1,898,726.

Single-familyProperty Type

1969Year Built

6,026 sq ftLot Size

$974Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,898,726

$1.9M since sold in September 1969$13K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 16.5% lower than the average sale price ($2.27M) of 5 comparable homes.

SOLD AUG 14, 2026
$2,000,000
A
4 beds2 baths1,900 sq ft
310 Mainsail Ct, Foster City, CA 94404
SOLD SEP 24, 2026
$2,791,000
B
4 beds2 baths1,924 sq ft
951 Laguna Cir, Foster City, CA 94404
SOLD JUL 21, 2026
$2,075,000
C
4 beds2 baths1,470 sq ft
241 Winchester Ct, Foster City, CA 94404
SOLD JUN 9, 2026
$1,885,000
D
4 beds2 baths1,670 sq ft
809 Constitution Dr, Foster City, CA 94404
SOLD NOV 25, 2025
$2,620,000
E
4 beds2 baths1,800 sq ft
917 Laguna Cir, Foster City, CA 94404

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Earn from this home

Sell

$1,798,043

Est. take-home

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Est. cash available

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Rent

$5,927/mo

Redfin rental estimate

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Market trends in 94404, CA

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-List Price

101.1%

+0.5% MoM

Median sale price

$1.2M

$83K MoM

Avg. days on market

27d

1 days MoM

Recently sold homes

4 MoM

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$1,795,000
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OPEN SUN, 1PM TO 4:30PM
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867 Arcturus Cir, Foster City, CA 94404
OPEN SUN, 1PM TO 5PM
$2,150,000
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OPEN SUN, 1:30PM TO 4PM
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OPEN SUN, 1PM TO 4PM
$1,188,888
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1088 Foster Square Ln #208, Foster City, CA 94404
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See all

Provided by Redfin

Sale history for 851 Regulus St

Year

Property tax

Land + Additions

Assessment*

2025

$2,041 (+1.7%)

$29,985 + $112,511

$142,496

2024

$2,007 (+2.3%)

$29,398 + $110,305

$139,703

2023

$1,962 (+2.2%)

$28,822 + $108,143

$136,965

2022

$1,920 (+2.0%)

$28,257 + $106,023

$134,280

2021

$1,883 (+2.7%)

$27,703 + $103,945

$131,648

2020

$1,834 (+4.9%)

$27,160 + $101,907

$129,067

2019

$1,748 (+23.1%)

$26,882 + $100,863

$127,745

2018

$1,421 (+1.3%)

$26,355 + $98,886

$125,241

2017

$1,402 (−10.7%)

$25,333 + $95,048

$120,381

2016

$1,569 (+2.6%)

$25,333 + $95,048

$120,381

2015

$1,529 (+2.7%)

$24,837 + $93,185

$118,022

2014

$1,489 (+1.7%)

$23,985 + $89,989

$113,974

2012

$1,465 (+2.1%)

$23,877 + $89,583

$113,460

2011

$1,434 (+1.4%)

$23,409 + $87,827

$111,236

2010

$1,414 (+10.3%)

$22,950 + $86,105

$109,055

2009

$1,282 (+2.2%)

$22,779 + $85,462

$108,241

2008

$1,254

$22,834 + $85,666

$108,500

Tax history for 851 Regulus St

Year

Property tax

Land + Additions

Assessment*

2025

$2,041 (+1.7%)

$29,985 + $112,511

$142,496

2024

$2,007 (+2.3%)

$29,398 + $110,305

$139,703

2023

$1,962 (+2.2%)

$28,822 + $108,143

$136,965

2022

$1,920 (+2.0%)

$28,257 + $106,023

$134,280

2021

$1,883 (+2.7%)

$27,703 + $103,945

$131,648

2020

$1,834 (+4.9%)

$27,160 + $101,907

$129,067

2019

$1,748 (+23.1%)

$26,882 + $100,863

$127,745

2018

$1,421 (+1.3%)

$26,355 + $98,886

$125,241

2017

$1,402 (−10.7%)

$25,333 + $95,048

$120,381

2016

$1,569 (+2.6%)

$25,333 + $95,048

$120,381

2015

$1,529 (+2.7%)

$24,837 + $93,185

$118,022

2014

$1,489 (+1.7%)

$23,985 + $89,989

$113,974

2012

$1,465 (+2.1%)

$23,877 + $89,583

$113,460

2011

$1,434 (+1.4%)

$23,409 + $87,827

$111,236

2010

$1,414 (+10.3%)

$22,950 + $86,105

$109,055

2009

$1,282 (+2.2%)

$22,779 + $85,462

$108,241

2008

$1,254

$22,834 + $85,666

$108,500

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

Permits

Dec 18, 2023 • Final

Photovoltaic or thermal systems

Install a solar photovoltaic system with modules.

Electrical

Solar

Dec 18, 2023 • Final

Electrical

Install one energy storage system.

Battery

Electrical

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: 2

Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central

Room Information
# of Rooms: 8

Exterior

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

View Information
View: Good

Property Information
Subdivision Name: FOSTER CITY NBRHD 09
Living Sq. Ft: 1,950
Ground Floor Sq. Ft: 1,950
Building Sq. Ft: 2,380
# of Stories: 1
Legal Description: LOT 242 FOSTER CITY NGBD NO 9 RSM 66/14 20

Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 430
Garage / Carport Type: Attached

Lot Information
# of Buildings: 1
Land Sq. Ft: 6,026
Legal Lot Number: 242
Acres: 0.1383
Depth Footage: 95
Front Footage: 63
Zoning Code: R10006
County Use Description: SINGLE FAMILY

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 1,950
Stories: 1.0
Lot Size: 6,026 square feet
Style: Single Family Residential
Year Built: 1969
Year Renovated: —
County: San Mateo County
APN: 094421280

Home facts updated by county records on Sep 28, 2026

Around this home

Schools

Foster City Elementary School

Public K-5 • Assigned • 0.3mi

9/10

Bowditch Middle School

Public 6-8 • Assigned • 1.6mi

9/10

Hillsdale High School

Public 9-12 • Assigned • 2.5mi

9/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

6/10 Flood Factor

Estimated 22-32% chance 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

Foster City, CA • 94404

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

Estimated sale price

$1.80M – $2.18M

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OPEN SUN, 1PM TO 4PM

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EARLY ACCESSREDFIN COMING SOON

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OPEN SUN, 1PM TO 4:30PM

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4 beds2.5 baths2,680 sq ft

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OPEN SUN, 1PM TO 5PM

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3 beds2 baths1,820 sq ft

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OPEN SUN, 1:30PM TO 4PM

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OPEN SUN, 1PM TO 4PM

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Home values near 851 Regulus St

Data from public records.

Address	Redfin Estimate
840 Regulus Street, Foster City, CA 5 Beds \| 3 Baths \| 2260 Sq. Ft.	$2,339,864
870 Regulus Street, Foster City, CA 4 Beds \| 2 Baths \| 1950 Sq. Ft.	$1,865,267

Address	Redfin Estimate
831 Regulus Street, Foster City, CA 4 Beds \| 3 Baths \| 2240 Sq. Ft.	$2,279,997
881 Regulus Street, Foster City, CA 4 Beds \| 2 Baths \| 2090 Sq. Ft.	$2,230,319

Address	Redfin Estimate
841 Regulus Street, Foster City, CA 4 Beds \| 2 Baths \| 1800 Sq. Ft.	$1,949,873
860 Regulus Street, Foster City, CA 4 Beds \| 2 Baths \| 1810 Sq. Ft.	$1,859,602

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About this home

Redfin Estimate

Earn from this home

Market trends in 94404, CA

Sale history for 851 Regulus St

Tax history for 851 Regulus St

Permits

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94404

Home values near 851 Regulus St

More real estate resources