20 Anson Rd is a 3,220 square foot house on a 1.35 acre lot with 3 bedrooms and 3.5 bathrooms. - it last sold on April 27, 1972 for $21,000. Based on Redfin's Hillsborough data, we estimate the home's value is $4,580,376.
Single-familyProperty Type
1973Year Built
1.35 acresLot Size
$1,422Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$4,580,376
$4.6M since sold in April 1972$125K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 14.1% lower than the average sale price ($5.33M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
May 16, 2023 • Final
Roof
Tear off and replace the roof on a garage.
Roofing
Jul 10, 2008 • Final
Combination
Remodel a master bathroom.
Addition
Bathroom
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
Interior
Bathroom Information
# of Full Baths: 3
# of 1/2 Baths: 1
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
Pool Information
Has Pool
Property Information
Subdivision Name: HILLSBOROUGH PARK 02
Living Sq. Ft: 3,220
Gross Sq. Ft: 3,220
Ground Floor Sq. Ft: 1,620
Building Sq. Ft: 3,220
# of Stories: 2
Legal Description: ELY 1.32 AC MOL OF LOT 4 BLOCK O HILLSBOROUGH PARK NO 2 RSM 15/39 TO 47 TOWN OF HILLSBOROUGH
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 480
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 58,860
Legal Lot Number: 4
Legal Block Number: O
Acres: 1.3512
Zoning Code: R10025
County Use Description: SINGLE FAMILY
Location Information
Parcel Location Influence: Cul-De-Sac
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 3
Baths: 3.5
Sq. Ft.: 3,220
Stories: 2.0
Lot Size: 1.35 acres
Style: Single Family Residential
Year Built: 1973
Year Renovated: 1978
County: San Mateo County
APN: 030250050
Home facts updated by county records on Jul 15, 2026
Around this home
Schools
West Hillsborough School
Public K-5 • Assigned • 0.8mi
9/10
Crocker Middle School
Public 6-8 • Assigned • 1.5mi
8/10
San Mateo High School
Public 9-12 • Assigned • 2.5mi
9/10
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
1/10 Heat Factor
2 days above 85° expected this year, 4 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
6/10 Air Factor
11 unhealthy days expected this year, 11 days in 30 years
Provided by First Street
Historical weather
Hillsborough, CA • 94010
Average low and high temperatures (°F)
60
47
62
48
67
50
65
51
68
52
70
54
69
56
72
58
73
59
72
57
63
52
59
50
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
$4.35M – $5.27M
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