21 Curtis Ave is a 3,498 square foot multi-family home on a 9,500 square foot lot with 4 bedrooms and 3 bathrooms. Based on Redfin's San Rafael data, we estimate the home's value is $1,187,309.
Multi-familyProperty Type
1936Year Built
9,500 sq ftLot Size
$339Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,187,309
$95K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 18.8% lower than the average sale price ($1.46M) 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
$6,199 (+12.2%)
$61,892 + $178,428
$240,320
2024
$5,527 (+4.6%)
$60,678 + $174,930
$235,608
2023
$5,282 (+3.7%)
$59,489 + $171,499
$230,988
2022
$5,096 (+1.3%)
$58,322 + $168,137
$226,459
2021
$5,031 (+0.3%)
$57,179 + $164,842
$222,021
2020
$5,016 (+8.9%)
$56,058 + $161,609
$217,667
2019
$4,606 (+0.6%)
$55,483 + $159,953
$215,436
2018
$4,580 (+2.4%)
$54,396 + $156,817
$211,213
2017
$4,472 (+3.6%)
$52,284 + $150,729
$203,013
2016
$4,316 (+4.4%)
$52,284 + $150,729
$203,013
2015
$4,136 (+5.6%)
$51,258 + $147,774
$199,032
2014
$3,915 (+2.2%)
$49,500 + $142,704
$192,204
2013
$3,830 (+5.1%)
$49,500 + $142,704
$192,204
2012
$3,645 (+1.0%)
$49,276 + $142,059
$191,335
2011
$3,609 (+0.8%)
$48,310 + $139,275
$187,585
2010
$3,581 (+4.8%)
$47,363 + $136,545
$183,908
2009
$3,418 (−2.4%)
$47,009 + $135,524
$182,533
2008
$3,502
$47,121 + $135,847
$182,968
Tax history for 21 Curtis Ave
Year
Property tax
Land + Additions
Assessment*
2025
$6,199 (+12.2%)
$61,892 + $178,428
$240,320
2024
$5,527 (+4.6%)
$60,678 + $174,930
$235,608
2023
$5,282 (+3.7%)
$59,489 + $171,499
$230,988
2022
$5,096 (+1.3%)
$58,322 + $168,137
$226,459
2021
$5,031 (+0.3%)
$57,179 + $164,842
$222,021
2020
$5,016 (+8.9%)
$56,058 + $161,609
$217,667
2019
$4,606 (+0.6%)
$55,483 + $159,953
$215,436
2018
$4,580 (+2.4%)
$54,396 + $156,817
$211,213
2017
$4,472 (+3.6%)
$52,284 + $150,729
$203,013
2016
$4,316 (+4.4%)
$52,284 + $150,729
$203,013
2015
$4,136 (+5.6%)
$51,258 + $147,774
$199,032
2014
$3,915 (+2.2%)
$49,500 + $142,704
$192,204
2013
$3,830 (+5.1%)
$49,500 + $142,704
$192,204
2012
$3,645 (+1.0%)
$49,276 + $142,059
$191,335
2011
$3,609 (+0.8%)
$48,310 + $139,275
$187,585
2010
$3,581 (+4.8%)
$47,363 + $136,545
$183,908
2009
$3,418 (−2.4%)
$47,009 + $135,524
$182,533
2008
$3,502
$47,121 + $135,847
$182,968
*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
May 12, 2027 • Active
Reroof
Tear off existing roofs and install new composition and built-up roofing systems.
Roofing
May 12, 2025 • Final
Plumbing
Replace a natural gas water heater.
Plumbing
Water heater
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: 120
Basement Type: Unfinished
Heating & Cooling
Heating Type: Central
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Building Construction Quality: Good
Property Information
Subdivision Name: CURTIS PARK
Living Sq. Ft: 3,498
Building Sq. Ft: 3,618
# of Units: 2
Parking & Garage Information
Garage/Parking Sq. Ft: 1,061
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,500
Legal Lot Number: 11
Municipality Name: SAN RAFAEL
Acres: 0.2181
County Use Description: MULTI FAMILY RESID
Financial
Assessor Information
Assessment Year: 2026
Tax Area: SAN RAFAEL
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 3,498
Stories: —
Lot Size: 9,500 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1936
Year Renovated: 1970
County: Marin County
APN: 011-173-18
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Coleman Elementary School
Public K-5 • Assigned • 0.4mi
7/10
James B. Davidson Middle School
Public 6-8 • Assigned • 0.7mi
6/10
San Rafael High School
Public 9-12 • Assigned • 0.9mi
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
0.31% 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
74
54
80
55
78
55
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
$1.13M – $1.37M
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