551 El Arroyo Rd is a 2,530 square foot house on a 0.39 acre lot with 3 bedrooms and 3 bathrooms. - it last sold on October 08, 1996 for $638,000. Based on Redfin's Hillsborough data, we estimate the home's value is $4,628,658.
Single-familyProperty Type
1942Year Built
0.39 acresLot Size
$1,830Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$4,628,658
$4.0M since sold in October 1996$62K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.8% lower than the average sale price ($4.86M) of 5 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Sep 9, 2025 • Final
Roof
Remove and replace composition shingles on a residential building.
Roofing
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: 840
Basement Finish: Finished
Basement Type: Full
Bathroom Information
# of Full Baths: 3
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central
Room Information
# of Rooms: 6
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Good
View Information
View: Good
Property Information
Subdivision Name: HILLSBOROUGH 03
Living Sq. Ft: 2,530
Ground Floor Sq. Ft: 2,110
Building Sq. Ft: 2,950
# of Stories: 1
Legal Description: LOT 113 SUB OF RESERVED POR OF BREWER PROP SUB NO 3 RSM 17/ 53 54 TOWN OF HILLSBOROUGH
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Basement Garage
Garage/Parking Sq. Ft: 420
Garage / Carport Type: Basement
Lot Information
# of Buildings: 1
Land Sq. Ft: 17,118
Legal Lot Number: 113
Acres: 0.393
Depth Footage: 173
Front Footage: 99
Zoning Code: R10025
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 2,530
Stories: 1.0
Lot Size: 0.39 acres
Style: Single Family Residential
Year Built: 1942
Year Renovated: 1942
County: San Mateo County
APN: 031026060
Home facts updated by county records on Sep 2, 2026
Around this home
Schools
North Hillsborough School
Public K-5 • Assigned • 0.4mi
9/10
Crocker Middle School
Public 6-8 • Assigned • 0.4mi
8/10
San Mateo High School
Public 9-12 • Assigned • 1.8mi
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
2/10 Heat Factor
6 days above 85° expected this year, 12 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
Hillsborough, CA • 94010
Average low and high temperatures (°F)
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72
57
63
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50
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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
$4.40M – $5.32M
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