18 Valencia Ave is a 3,421 square foot multi-family home on a 9,600 square foot lot with 5 bedrooms and 4.5 bathrooms. - it last sold on June 14, 2004 for $800,000. Based on Redfin's San Rafael data, we estimate the home's value is $1,265,508.
Multi-familyProperty Type
1947Year Built
9,600 sq ftLot Size
$370Est. Price/Sq.Ft.
5 spacesParking
Source:Public Records
Redfin Estimate
$1,265,508
$466K since sold in June 2004$4,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 17.9% lower than the average sale price ($1.54M) of 6 comparable homes.
*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
HR1.8
Multifamily Residential Districts - High-Density
The high-density residential districts provide opportunities for high-density multifamily residential development.; High-density multifamily residential districts are included in the high-density residential land use category with densities ranging from 1,000 sq ft to 1,800 sq ft per dwelling unit.
Permitted uses
Include but are not limited to:
Garden center
Housing-Single unit
Housing-Multiple units
Housing-Senior
Educational/school
Recreation
Park & open space
Jul 25, 2026 • Active
Electric
Change out the main electrical panel.
Electrical
Jun 21, 2011 • Final
Electric
Upgrade the electrical panels for a duplex.
Electrical
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
Exterior
Property Information
Subdivision Name: SAN RAFAEL DEV CO MAP 01
Living Sq. Ft: 3,421
Building Sq. Ft: 3,421
# of Units: 4
Legal Description: MAP 2 PG 116 BLK F LOT 17
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,600
Legal Lot Number: 17
Legal Block Number: F
Municipality Name: SAN RAFAEL
Acres: 0.2204
County Use Description: MULTI FAMILY RESID
Financial
Assessor Information
Assessment Year: 2026
Tax Area: SAN RAFAEL
Public facts
Beds: 5
Baths: 4.5
Sq. Ft.: 3,421
Stories: —
Parking Spaces: 5
Basement: Yes
Accessible: No
Lot Size: 9,600 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1947
Year Renovated: 2026
County: Marin County
APN: 014-063-18
HOA Dues: —
Garage: Yes
Features: Views, Green
Home facts updated by owner on Apr 30, 2026
Around this home
Schools
Coleman Elementary School
Public K-5 • Assigned • 0.5mi
7/10
James B. Davidson Middle School
Public 6-8 • Assigned • 0.9mi
6/10
San Rafael High School
Public 9-12 • Assigned • 0.2mi
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
2/10 Fire Factor
0.00% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 85° 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
$1.16M – $1.40M
Reach more buyers when you sell with Redfin. Save up to $12,655 in fees.3 minutes to get started.