850 Chiltern Rd is a 2,680 square foot house on a 0.79 acre lot with 4 bedrooms and 3 bathrooms. - it last sold on July 18, 1988 for $895,000. Based on Redfin's Hillsborough data, we estimate the home's value is $5,852,649.
Single-familyProperty Type
1950Year Built
0.79 acresLot Size
$2,184Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$5,852,649
$5.0M since sold in July 1988$109K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 13.8% higher than the average sale price ($5.14M) 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
Jun 11, 2018 • Final
Archive record
Perform seismic upgrades in accordance with building codes.
Remodel
Jan 8, 2018 • Final
Ev charger
Install a Tesla charging station in a garage.
Electrical
Ev charger
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: 640
Basement Type: Unfinished
Bathroom Information
# of Full Baths: 3
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central
Room Information
# of Rooms: 7
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Good
Pool Information
Has Pool
Property Information
Subdivision Name: HILLSBOROUGH
Living Sq. Ft: 2,680
Gross Sq. Ft: 3,920
Ground Floor Sq. Ft: 2,410
Building Sq. Ft: 3,920
# of Stories: 2
Legal Description: LOT 52 HILLSBOROUGH PARK RSM 11/58 TO 61 TOWN OF HILLSBOROUGH
Parking & Garage Information
# of Parking Spaces: 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 34,495
Legal Lot Number: 52
Acres: 0.7919
Zoning Code: R10025
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,680
Stories: 2.0
Lot Size: 0.79 acres
Style: Single Family Residential
Year Built: 1950
Year Renovated: —
County: San Mateo County
APN: 031321020
Home facts updated by county records on Jul 15, 2026
Around this home
Schools
South Hillsborough School
Public K-5 • Assigned • 0.7mi
9/10
Crocker Middle School
Public 6-8 • Assigned • 1.2mi
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
3 days above 86° expected this year, 6 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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67
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73
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72
57
63
52
59
50
Jan
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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
$5.56M – $6.73M
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