Located on a quiet tree lined street, 170 Spring Grove feels like your own private mountain retreat with light-filled spaces surrounded by iconic Redwood trees. With clean lines in mind, the remodel retains the home's mid-century modern architecture with open-beamed ceilings, warm hardwood floors and offers an open-concept style of living. Skylights paired with oversized windows bring ample natural light throughout the home, accentuating the beauty of the surrounding hillside. Seamlessly blending indoor and outdoor living, 170 Spring Grove offers 3-4 bedrooms + an office, 2.5 bathrooms, and 2,332 square feet of living space on over a half acre lot with multiple outdoor spaces for lounging, entertaining, star-gazing or reading a good book in the sun-filtered shade. Ideally located in one of the best San Anselmo locations known for its amazing year-round weather, access to hiking trails, and in close proximity to Downtown San Anselmo, San Rafael's West End and HWY 101 for easy commuting.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Permits
Beds
3
Baths
3
Stories
—
Lot width
—
Lot depth
—
Lot size
0.52 Acres
Year renovated
1993
Sq. Ft.
1,837
Year built
1987
Style
Single Family Residential
County
Marin County
APN
006-221-06
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 19, 2026.
R-1
Single-Family Residential District
This District is reflected on the General Plan Land Use Map as Single-Family Residential, which allows a density range of between 1 and 6 residential units for each acre of land, with a maximum population density of 18 persons for each gross acre of land. The minimum lot area for R-1 lots shall also be regulated by the Slope Density Table, referred to as Table 4C. No allowance for rounding up shall be granted for the last lot in a subdivision which only partially meets the minimum lot area requirements. This District is generally applied to established residential neighborhoods characterized by single-family detached residential units on conventional lots. The majority of the land area in this District has previously been developed. Additionally, this District is applied to lots located at or above 150 ft above Mean Sea Level which are further regulated through the requirement for the careful review of architectural design and site development characteristics for new development on undeveloped land, for certain reconstruction of existing development, and for certain expansions of existing development. Accessory dwelling units are permitted as an accessory residential use that is consistent with the General Plan and shall not be considered to exceed the allowable density. Small 2 unit developments that comply with Chapter 4 are permitted.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Multiple units
Housing-Senior
Housing-Other
Educational/school
Park & open space
Feb 11, 2025 • Final
Reroof
Remove the existing roof and install new Class A composite shingles.
Roofing
Jan 15, 2025 • Final
Building
Remove and replace a beam damaged by dry rot.
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
Parking
Parking & Garage Information
Parking Total: 5
Parking Features: Attached
Garage Spaces: 2
Interior
Bathroom Information
# of Bathrooms (Total): 3
# of Bathrooms (Full): 2
# of Bathrooms (Partial): 1
Bedroom Information
# of Bedrooms (Total): 3
Heating & Cooling
Cooling: Wall Unit(s)
Heating: Central
Interior Features
Fireplaces Total: 2
Fireplace Features: Wood Burning
Laundry Features: Dryer Included, Inside Room, Sink, Washer Included
# of Stories: 3
Room Information
Main Level: Bedroom(s), Dining Room, Family Room, Full Bath(s), Kitchen
Lower Level: Family Room, Garage
Upper Level: Bedroom(s), Full Bath(s), Partial Bath(s)
Exterior
Exterior Features
Allows Horses: No
Pool Information
Has Private Pool: No
Has Spa: No
Property Information
ADU 2nd Unit: No
Property Type: Residential
Property Sub Type: Single Family Residence
Lot Information
Lot Size Square Feet: 22,577
Lot Size Acres: 0.5183
Lot Size Source: Assessor Auto-Fill
Lot Features: Other
Utilities
Utilities Information
Sewer: Public Sewer
Location
HOA Information
Association YN: No
Community Information
Senior Community: No
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 1,837
Stories: —
Lot Size: 0.52 acres
Style: Single Family Residential
Year Built: 1987
Year Renovated: 1993
County: Marin County
APN: 006-221-06
Home facts updated by county records on Oct 19, 2026
Around this home
Schools
K - 12
Preschool & daycare
Wade Thomas Elementary School
Public K-5 • Assigned • 0.8mi
10/10
White Hill Middle School
Public 6-8 • Assigned • 3.6mi
9/10
Archie Williams High School
Public 9-12 • Assigned • 1.3mi
10/10
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
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 Anselmo, CA • 94960
Average low and high temperatures (°F)
60
42
62
45
69
47
68
47
74
50
78
52
79
55
82
55
79
58
71
52
62
47
56
45
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.6 hours in
June and 5 hours in December, placing it above the
U.S. average for solar exposure.
10.6 hrs
5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.80M – $2.18M
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