Fixer in original condition with great outlooks from the large deck on a 16,500 sf lot. This property offers an opportunity for renovators, investors, or owner-occupiers looking to add value through a renovation plus the ability to increase the square footage significantly without having to expand the footprint. The detached three car garage, newer roof with solar plus batteries and updated windows make this house an attractive renovation proposition. Bring your contractor and make it yours.
Est. $5,480 per month, based on comparable rentals
Sale and tax history for 170 Irwin St
Sale History
Tax History
Date
Event
Price
BAREIS #326018024
May 1, 2026
Sold
$1,200,000
$533/sq ft
Apr 29, 2026
Pending
—
Apr 19, 2026
Contingent
—
Apr 1, 2026
Price Changed
$1,295,000
$576/sq ft
Mar 6, 2026
Listed
$1,449,000
$644/sq ft
Public Records
Sep 9, 1985
Sold
$257,500
$114/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$8,733 (+6.4%)
$918,000 + $612,000
$1,530,000
2024
$8,206 (+2.3%)
$159,306 + $360,569
$519,875
2023
$8,018 (+5.2%)
$156,183 + $353,500
$509,683
2022
$7,619 (+1.6%)
$153,120 + $346,568
$499,688
2021
$7,496 (+1.4%)
$150,119 + $339,774
$489,893
2020
$7,395 (+5.2%)
$147,176 + $333,113
$480,289
2019
$7,027 (+1.1%)
$145,667 + $329,699
$475,366
2018
$6,952 (+3.7%)
$142,811 + $323,234
$466,045
2017
$6,704 (+3.7%)
$137,266 + $310,684
$447,950
2016
$6,467 (+4.6%)
$137,266 + $310,684
$447,950
2015
$6,183 (+4.5%)
$134,575 + $304,593
$439,168
2014
$5,914 (+0.6%)
$129,958 + $294,143
$424,101
2013
$5,878 (+4.1%)
$129,958 + $294,143
$424,101
2012
$5,648 (+1.7%)
$129,371 + $292,814
$422,185
2011
$5,554 (+1.1%)
$126,835 + $287,074
$413,909
2010
$5,491 (+2.0%)
$124,348 + $281,446
$405,794
2009
$5,385 (+4.3%)
$123,420 + $279,345
$402,765
2008
$5,161
$123,713 + $280,009
$403,722
Public record
Public record
Zoning
Permits
Beds
3
Baths
2
Stories
—
Lot width
—
Lot depth
—
Lot size
0.38 Acres
Year renovated
1986
Sq. Ft.
2,250
Year built
1984
Style
Single Family Residential
County
Marin County
APN
013-213-37
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
R7.5
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
Jun 28, 2022 • Final
Reroof
Tear off and install a new asphalt shingle roof.
Roofing
Apr 18, 2022 • Final
Renewable energy
Install two power walls on an exterior wall.
Battery
Electrical
Solar
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: 3
Parking Features: Detached
Garage Spaces: 3
Interior
Bathroom Information
# of Bathrooms (Total): 2
# of Bathrooms (Full): 2
Bedroom Information
# of Bedrooms (Total): 3
Heating & Cooling
Cooling: Central
Heating: Central
Interior Features
Fireplaces Total: 2
Fireplace Features: Wood Burning
Laundry Features: Dryer Included, Washer Included
# of Stories: 1
Room Information
Basement: Unfinished
Levels: Multi/Split
Main Level: Bedroom(s), Dining Room, Family Room, Full Bath(s), Kitchen, Living Room
Exterior
Exterior Features
Allows Horses: No
Roof: Composition
Pool Information
Has Private Pool: No
Has Spa: No
Property Information
ADU 2nd Unit: No
Property Condition: Fixer, Original
Property Type: Residential
Property Sub Type: Single Family Residence
Lot Information
Lot Size Square Feet: 16,501
Lot Size Acres: 0.3788
Lot Size Source: Assessor Auto-Fill
Lot Features: Shape Irregular
Power Production Information
Type: Photovoltaics
Size: 0.00
Ownership: Seller Owned
Description: Solar Battery Backup, Solar Panels
Year Install: 0
Utilities
Utilities Information
Utilities: Solar
Sewer: Public Sewer
Location
HOA Information
Association YN: No
School Information
School District County: Calaveras
Community Information
Senior Community: No
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 2,250
Stories: —
Lot Size: 0.38 acres
Style: Single Family Residential
Year Built: 1984
Year Renovated: 1986
County: Marin County
APN: 013-213-37
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Laurel Dell Elementary School
Public K-5 • Assigned • 0.6mi
8/10
James B. Davidson Middle School
Public 6-8 • Assigned • 0.7mi
6/10
San Rafael High School
Public 9-12 • Assigned • 1.0mi
6/10
Provided by GreatSchools
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
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
75/ 100
Good sunlight
Sunscore
There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9 hrs
3.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.47M – $1.77M
Reach more buyers when you sell with Redfin. Plus, you'll save $15,418 in fees.