Google street view image for 42 Oak Valley Rd, San Mateo, CA 94402

Off market jan 1999 for $470K

$2,703,240

Est. refi paymentEst. refi $3,133/mo

•

2.5 ba

•

2,140

sq ft

42 Oak Valley Rd, San Mateo, CA 94402

About this home

42 Oak Valley Rd is a 2,140 square foot house on a 6,377 square foot lot with 3 bedrooms and 2.5 bathrooms. - it last sold on January 11, 1999 for $470,000. Based on Redfin's San Mateo data, we estimate the home's value is $2,703,240.

Single-familyProperty Type

1958Year Built

6,377 sq ftLot Size

$1,263Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$2,703,240

$2.2M since sold in January 1999$3,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6% lower than the average sale price ($2.88M) of 5 comparable homes.

SOLD AUG 10, 2026
$3,250,000
A
3 beds2.5 baths2,460 sq ft
523 Iowa Dr, San Mateo, CA 94402
SOLD JAN 12, 2026
$2,550,000
B
3 beds2.5 baths2,140 sq ft
897 Parrott Dr, San Mateo, CA 94402
SOLD MAY 13, 2026
$3,165,000
C
4 beds2 baths2,170 sq ft
811 Nevada Ave, San Mateo, CA 94402
SOLD MAY 8, 2026
$2,700,000
D
3 beds2 baths1,920 sq ft
1322 Ashwood Ct, San Mateo, CA 94402
SOLD OCT 30, 2025
$2,720,000
E
3 beds2 baths1,908 sq ft
866 Parrott Dr, San Mateo, CA 94402

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Earn from this home

Sell

$2,514,320

Est. take-home

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Refinance

Est. cash available

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Rent

$6,817/mo

Redfin rental estimate

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Market trends in 94402, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

105.8%

0.8% MoM

Median sale price

$2.7M

$109K MoM

Avg. days on market

12d

0 days MoM

Recently sold homes

11 MoM

New listings for sale

OPEN SAT, 1PM TO 4PM
$1,875,000
2 beds2 baths1,360 sq ft
1315 Maple St, San Mateo, CA 94402
NEW 18 HRS AGO
$1,395,000
2 beds2.5 baths1,800 sq ft
20 West 3rd Ave #202, San Mateo, CA 94402
OPEN SAT, 1PM TO 4PM
$2,689,000
3 beds3 baths2,550 sq ft
171 Starlite Dr, San Mateo, CA 94402
VIDEO TOUR
$3,888,000
5 beds4 baths2,940 sq ft
509 Crescent Ave, San Mateo, CA 94402
$2,488,888
3 beds2 baths1,650 sq ft
2015 Ticonderoga Dr, San Mateo, CA 94402
3D WALKTHROUGH
$2,500,000
2 beds2.5 baths2,800 sq ft
20 West 3rd Ave #601, San Mateo, CA 94402
$1,825,000
4 beds2 baths1,942 sq ft
934 South Delaware St, San Mateo, CA 94402
OPEN SAT, 2PM TO 4PM
$915,000
2 beds1.5 baths985 sq ft
606 South Humboldt St #1, San Mateo, CA 94402
3D & VIDEO TOUR
$2,895,000
4 beds3 baths2,207 sq ft
1455 Ascension Dr, San Mateo, CA 94402
$1,490,000
3 beds3 baths1,633 sq ft
13 Gallowridge Ct, San Mateo, CA 94402
See all

Provided by Redfin

Sale history for 42 Oak Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$11,391 (+4.9%)

$382,732 + $398,725

$781,457

2024

$10,858 (+5.9%)

$375,228 + $390,907

$766,135

2023

$10,255 (−3.0%)

$367,871 + $383,243

$751,114

2022

$10,567

$360,658 + $375,729

$736,387

2021

$10,566 (+9.8%)

$353,587 + $368,362

$721,949

2020

$9,619 (+3.4%)

$346,654 + $361,140

$707,794

2019

$9,306 (+3.6%)

$343,100 + $357,437

$700,537

2018

$8,986 (+5.3%)

$336,373 + $350,429

$686,802

2017

$8,538 (+4.3%)

$323,312 + $336,822

$660,134

2016

$8,184 (−2.5%)

$323,312 + $336,822

$660,134

2015

$8,394 (+7.4%)

$316,973 + $330,218

$647,191

2014

$7,816 (−0.5%)

$306,097 + $318,887

$624,984

2012

$7,853 (+5.6%)

$304,714 + $317,446

$622,160

2011

$7,433 (+0.2%)

$298,740 + $311,222

$609,962

2010

$7,418 (+4.9%)

$292,883 + $305,120

$598,003

2009

$7,070 (−1.3%)

$290,695 + $302,840

$593,535

2008

$7,163

$291,386 + $303,560

$594,946

Tax history for 42 Oak Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$11,391 (+4.9%)

$382,732 + $398,725

$781,457

2024

$10,858 (+5.9%)

$375,228 + $390,907

$766,135

2023

$10,255 (−3.0%)

$367,871 + $383,243

$751,114

2022

$10,567

$360,658 + $375,729

$736,387

2021

$10,566 (+9.8%)

$353,587 + $368,362

$721,949

2020

$9,619 (+3.4%)

$346,654 + $361,140

$707,794

2019

$9,306 (+3.6%)

$343,100 + $357,437

$700,537

2018

$8,986 (+5.3%)

$336,373 + $350,429

$686,802

2017

$8,538 (+4.3%)

$323,312 + $336,822

$660,134

2016

$8,184 (−2.5%)

$323,312 + $336,822

$660,134

2015

$8,394 (+7.4%)

$316,973 + $330,218

$647,191

2014

$7,816 (−0.5%)

$306,097 + $318,887

$624,984

2012

$7,853 (+5.6%)

$304,714 + $317,446

$622,160

2011

$7,433 (+0.2%)

$298,740 + $311,222

$609,962

2010

$7,418 (+4.9%)

$292,883 + $305,120

$598,003

2009

$7,070 (−1.3%)

$290,695 + $302,840

$593,535

2008

$7,163

$291,386 + $303,560

$594,946

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

Zoning and permits

Zoning
Permits

R1B

Single-Family Residence Districts

The R1 Single-Family Residence Districts are intended to create, preserve and enhance areas suitable for single-family dwellings with a substantial presence of open space and opportunities for outdoor living. The R1 districts are intended to protect the character and variety of neighborhoods, preserve privacy and prevent burdens on public facilities, while allowing reasonable housing opportunities for families.

Permitted uses

Include but are not limited to:

Day care facility
Housing-Single unit
Housing-Mobile home park

Jul 20, 2022 • Final

Electrical, plumbing & mechanical - plumbing

Remove and replace a gas water heater located in the garage.

Gas

Plumbing

Water heater

Feb 9, 2010 • Final

Single family (alteration/repair) - converted

Plumbing

Water heater

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

Basement Information
Basement Sq. Ft: 800
Basement Finish: Finished
Basement Type: Full

Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1

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

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Room Information
# of Rooms: 7

Exterior

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

View Information
View: Good

Property Information
Subdivision Name: WOODLANDS
Living Sq. Ft: 2,140
Ground Floor Sq. Ft: 1,870
Building Sq. Ft: 2,670
# of Stories: 1
Legal Description: LOT 15 BLOCK 2 THE WOODLANDS AMENDED MAP OF RSM 42/24 25 CITY OF SAN MATEO

Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Basement Garage
Garage/Parking Sq. Ft: 530
Garage / Carport Type: Basement

Lot Information
# of Buildings: 1
Land Sq. Ft: 6,377
Legal Lot Number: 15
Legal Block Number: 2
Acres: 0.1464
Depth Footage: 90
Front Footage: 70
Zoning Code: R10006
County Use Description: SINGLE FAMILY

Location Information
Parcel Location Influence: Cul-De-Sac

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 3
Baths: 2.5
Sq. Ft.: 2,140
Stories: 1.0
Lot Size: 6,377 square feet
Style: Single Family Residential
Year Built: 1958
Year Renovated: 1963
County: San Mateo County
APN: 038212170

Home facts updated by county records on Sep 2, 2026

Around this home

Schools

Baywood Elementary School

Public K-5 • Assigned • 0.5mi

7/10

Borel Middle School

Public 6-8 • Assigned • 1.0mi

8/10

Aragon High School

Public 9-12 • Assigned • 0.6mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

San Mateo starting in January 2026, median prices climbed steadily, reaching a strong spring peak in March–April 2026 at around $2.35M–$2.4M. Prices pulled back in July, rebounded briefly in August, and closed in September 2026 at around...
3 weeks ago • San Mateo
Helen Li
Redfin Premier agent
94 deals
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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

2/10 Heat Factor

5 days above 86° expected this year, 11 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

San Mateo, CA • 94402

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 10.5 hours in June and 5 hours in December, placing it above the U.S. average for solar exposure.

10.5 hrs

5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$2.57M – $3.11M

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NEW 18 HRS AGO

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OPEN SAT, 2PM TO 4PM3D WALKTHROUGH

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3D & VIDEO TOUR

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Home values near 42 Oak Valley Rd

Data from public records.

Address	Redfin Estimate
39 Oak Valley Road, San Mateo, CA 3 Beds \| 2.5 Baths \| 2380 Sq. Ft.	$2,950,678
27 Oak Valley Road, San Mateo, CA 3 Beds \| 2 Baths \| 1810 Sq. Ft.	$2,581,185

Address	Redfin Estimate
21 Oak Valley Road, San Mateo, CA 4 Beds \| 4 Baths \| 2070 Sq. Ft.	$4,735,609
24 Oak Valley Road, San Mateo, CA 4 Beds \| 2.5 Baths \| 2130 Sq. Ft.	$2,851,678

Address	Redfin Estimate
16 Oak Valley Road, San Mateo, CA 4 Beds \| 2.5 Baths \| 2120 Sq. Ft.	$2,888,347
54 Oak Valley Road, San Mateo, CA 3 Beds \| 2 Baths \| 2110 Sq. Ft.	$3,057,855

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94402, CA

Sale history for 42 Oak Valley Rd

Tax history for 42 Oak Valley Rd

Zoning and permits

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94402

Home values near 42 Oak Valley Rd

More real estate resources