31 Valley Rd is a 6,700 square foot house on a 1.04 acre lot with 5 bedrooms and 6.5 bathrooms. Based on Redfin's Atherton data, we estimate the home's value is $7,556,570.
Single-familyProperty Type
2001Year Built
1.04 acresLot Size
$1,128Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$7,556,570
$1.1M since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 22.5% lower than the average sale price ($9.75M) of 5 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$73,912 (+1.3%)
$3,478,150 + $3,256,734
$6,734,884
2024
$72,996 (+1.6%)
$3,409,952 + $3,192,877
$6,602,829
2023
$71,836 (+2.8%)
$3,343,091 + $3,130,273
$6,473,364
2022
$69,867 (+94.4%)
$3,277,541 + $3,068,896
$6,346,437
2021
$35,946 (+2.3%)
$3,213,276 + $3,008,723
$6,221,999
2020
$35,149 (−2.9%)
$1,300,271 + $1,822,253
$3,122,524
2019
$36,214 (+5.0%)
$1,286,939 + $1,803,569
$3,090,508
2018
$34,473 (+1.2%)
$1,261,705 + $1,768,205
$3,029,910
2017
$34,064 (+0.7%)
$1,212,712 + $1,699,545
$2,912,257
2016
$33,811 (+1.9%)
$1,212,712 + $1,699,545
$2,912,257
2015
$33,175 (+0.8%)
$1,188,934 + $1,666,221
$2,855,155
2014
$32,899 (+5.5%)
$1,148,137 + $1,609,045
$2,757,182
2012
$31,180 (+2.0%)
$1,142,949 + $1,601,773
$2,744,722
2011
$30,581 (+1.4%)
$1,120,539 + $1,570,366
$2,690,905
2010
$30,171 (+0.8%)
$1,098,568 + $1,539,575
$2,638,143
2009
$29,945 (+2.6%)
$1,090,358 + $1,528,069
$2,618,427
2008
$29,195
$1,092,949 + $1,531,700
$2,624,649
Tax history for 31 Valley Rd
Year
Property tax
Land + Additions
Assessment*
2025
$73,912 (+1.3%)
$3,478,150 + $3,256,734
$6,734,884
2024
$72,996 (+1.6%)
$3,409,952 + $3,192,877
$6,602,829
2023
$71,836 (+2.8%)
$3,343,091 + $3,130,273
$6,473,364
2022
$69,867 (+94.4%)
$3,277,541 + $3,068,896
$6,346,437
2021
$35,946 (+2.3%)
$3,213,276 + $3,008,723
$6,221,999
2020
$35,149 (−2.9%)
$1,300,271 + $1,822,253
$3,122,524
2019
$36,214 (+5.0%)
$1,286,939 + $1,803,569
$3,090,508
2018
$34,473 (+1.2%)
$1,261,705 + $1,768,205
$3,029,910
2017
$34,064 (+0.7%)
$1,212,712 + $1,699,545
$2,912,257
2016
$33,811 (+1.9%)
$1,212,712 + $1,699,545
$2,912,257
2015
$33,175 (+0.8%)
$1,188,934 + $1,666,221
$2,855,155
2014
$32,899 (+5.5%)
$1,148,137 + $1,609,045
$2,757,182
2012
$31,180 (+2.0%)
$1,142,949 + $1,601,773
$2,744,722
2011
$30,581 (+1.4%)
$1,120,539 + $1,570,366
$2,690,905
2010
$30,171 (+0.8%)
$1,098,568 + $1,539,575
$2,638,143
2009
$29,945 (+2.6%)
$1,090,358 + $1,528,069
$2,618,427
2008
$29,195
$1,092,949 + $1,531,700
$2,624,649
*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
R-1A
Residential District
This chapter identifies the allowed use and permit requirements and development standards for the residential district R-1A. The intent of this district is to implement the residential land use categories of the town’s general plan. It is designed to designate land for the development of residential uses consistent with the development regulations set forth in this title.
Permitted uses
Include but are not limited to:
Housing
Housing-Single unit
Mar 21, 2026 • Final
Plumbing
Replace the water heater.
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
Bathroom Information
# of Full Baths: 6
# of 1/2 Baths: 1
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central
Fireplace Information
# of Fireplaces: 4
Has Fireplace
Room Information
# of Rooms: 10
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Excellent
View Information
View: Excellent
Property Information
Subdivision Name: ATHERTON VLY LANDS/SMITH
Living Sq. Ft: 6,700
Ground Floor Sq. Ft: 4,510
Building Sq. Ft: 6,700
# of Stories: 2
Legal Description: LOT 6 ATHERTON VALLEY RSM 118/30-31
Parking & Garage Information
# of Parking Spaces: 4
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 1,200
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 45,263
Legal Lot Number: 6
Acres: 1.0391
Depth Footage: 226
Front Footage: 200
County Use Description: SINGLE FAMILY
Location Information
Parcel Location Influence: Cul-De-Sac
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 6.5
Sq. Ft.: 6,700
Stories: 2.0
Lot Size: 1.04 acres
Style: Single Family Residential
Year Built: 2001
Year Renovated: 2001
County: San Mateo County
APN: 073261350
Home facts updated by county records on Sep 2, 2026
Around this home
Schools
Las Lomitas Elementary School
Public K-3 • Assigned • 1.2mi
10/10
La Entrada Middle School
Public 4-8 • Assigned • 1.4mi
10/10
Woodside High School
Public 9-12 • Assigned • 1.4mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
10/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.31% chance of being in a wildfire in next 30 years
2/10 Heat Factor
7 days above 97° expected this year, 13 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
Atherton, CA • 94027
Average low and high temperatures (°F)
61
41
64
45
71
47
70
48
74
51
78
55
77
55
81
57
80
58
77
53
65
46
60
45
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.7 hours in
June and 5 hours in December, placing it above the
U.S. average for solar exposure.
10.7 hrs
5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$7.18M – $8.69M
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