31 Watt Ave is a 2,807 square foot house on a 7,000 square foot lot with 5 bedrooms and 3 bathrooms. Based on Redfin's San Rafael data, we estimate the home's value is $1,857,810.
Single-familyProperty Type
1946Year Built
7,000 sq ftLot Size
$662Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,857,810
$254K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 0.5% lower than the average sale price ($1.87M) of 6 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
$5,651 (+10.7%)
$46,880 + $290,603
$337,483
2024
$5,107 (+1.5%)
$45,961 + $206,474
$252,435
2023
$5,034 (+4.4%)
$45,060 + $202,426
$247,486
2022
$4,820 (+1.6%)
$44,176 + $198,458
$242,634
2021
$4,744 (+1.9%)
$43,310 + $194,567
$237,877
2020
$4,656 (+8.5%)
$42,461 + $190,753
$233,214
2019
$4,292 (+1.1%)
$42,026 + $188,797
$230,823
2018
$4,244 (+7.3%)
$41,202 + $185,095
$226,297
2016
$3,954 (+4.5%)
$39,602 + $177,909
$217,511
2015
$3,785 (+5.0%)
$38,826 + $174,421
$213,247
2014
$3,606 (+3.7%)
$37,494 + $168,437
$205,931
2013
$3,478 (+4.5%)
$37,494 + $168,437
$205,931
2012
$3,329 (+1.6%)
$37,324 + $167,676
$205,000
2011
$3,275 (+1.2%)
$36,593 + $164,389
$200,982
2010
$3,235 (+3.5%)
$35,875 + $161,166
$197,041
2009
$3,126 (+4.9%)
$35,607 + $159,962
$195,569
2008
$2,981
$35,692 + $160,343
$196,035
Tax history for 31 Watt Ave
Year
Property tax
Land + Additions
Assessment*
2025
$5,651 (+10.7%)
$46,880 + $290,603
$337,483
2024
$5,107 (+1.5%)
$45,961 + $206,474
$252,435
2023
$5,034 (+4.4%)
$45,060 + $202,426
$247,486
2022
$4,820 (+1.6%)
$44,176 + $198,458
$242,634
2021
$4,744 (+1.9%)
$43,310 + $194,567
$237,877
2020
$4,656 (+8.5%)
$42,461 + $190,753
$233,214
2019
$4,292 (+1.1%)
$42,026 + $188,797
$230,823
2018
$4,244 (+7.3%)
$41,202 + $185,095
$226,297
2016
$3,954 (+4.5%)
$39,602 + $177,909
$217,511
2015
$3,785 (+5.0%)
$38,826 + $174,421
$213,247
2014
$3,606 (+3.7%)
$37,494 + $168,437
$205,931
2013
$3,478 (+4.5%)
$37,494 + $168,437
$205,931
2012
$3,329 (+1.6%)
$37,324 + $167,676
$205,000
2011
$3,275 (+1.2%)
$36,593 + $164,389
$200,982
2010
$3,235 (+3.5%)
$35,875 + $161,166
$197,041
2009
$3,126 (+4.9%)
$35,607 + $159,962
$195,569
2008
$2,981
$35,692 + $160,343
$196,035
*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
R5
Single-Family Residential District
The single-family residential districts provide opportunities for low-density, detached single-family residential development. Development densities are based on existing development patterns in the area and environmental site constraints. In hillside areas, development shall conform to the hillside development standards and review procedures established in Chapter 14.12, Hillside Development Overlay District.; Single-family residential districts include hillside resource residential land use categories with minimum densities of 2 or more acres for minimum lot sizes; hillside residential and residential estate categories with densities from 20,000 sq ft to 2 acre lot minimums; and low-density residential land use categories with densities ranging from 5,000 sq ft to 20,000 sq ft lot minimums.
Permitted uses
Include but are not limited to:
Garden center
Housing-Single unit
Housing-Multiple units
Housing-Senior
Educational/school
Recreation
Park & open space
Sep 20, 2027 • Active
Building
Perform a retroactive interior remodel and install a car charger and windows.
Electrical
Ev charger
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
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Building Style Type: Contemporary
Building Construction Quality: Average
Property Information
Subdivision Name: RAFAEL GARDENS
Living Sq. Ft: 2,807
Building Sq. Ft: 2,807
# of Units: 1
Legal Description: MAP G7 566
Parking & Garage Information
Garage/Parking Sq. Ft: 336
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,000
Legal Lot Number: 1
Legal Block Number: B
Municipality Name: SAN RAFAEL
Acres: 0.1607
County Use Description: 1 FAMILY RESID
Financial
Assessor Information
Assessment Year: 2026
Tax Area: SAN RAFAEL
Public facts
Beds: 5
Baths: 3.0
Sq. Ft.: 2,807
Stories: —
Lot Size: 7,000 square feet
Style: Single Family Residential
Year Built: 1946
Year Renovated: 1970
County: Marin County
APN: 015-183-02
Home facts updated by county records on Oct 16, 2026
Around this home
Schools
Coleman Elementary School
Public K-5 • Assigned • 0.1mi
7/10
James B. Davidson Middle School
Public 6-8 • Assigned • 1.0mi
6/10
San Rafael High School
Public 9-12 • Assigned • 0.6mi
6/10
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
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 86° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
15 unhealthy days expected this year, 15 days in 30 years
Provided by First Street
Historical weather
San Rafael, CA • 94901
Average low and high temperatures (°F)
59
42
61
45
69
48
67
47
72
50
75
52
76
55
80
55
77
57
74
52
62
47
55
44
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
$1.77M – $2.14M
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