Google street view image for 531 Colby St, Ashland, CA 94580

Off market

$643,215

•

1 ba

•

849

sq ft

531 Colby St, Ashland, CA 94580

About this home

531 Colby St is a 849 square foot house on a 5,040 square foot lot with 2 bedrooms and 1 bathroom. Based on Redfin's Ashland data, we estimate the home's value is $643,215.

Single-familyProperty Type

1950Year Built

5,040 sq ftLot Size

$758Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$643,215

$15K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 13.1% lower than the average sale price ($740K) of 6 comparable homes.

SOLD SEP 2, 2026
$850,000
A
3 beds1 bath1,051 sq ft
887 Linnea Ave, Ashland, CA 94580
SOLD OCT 14, 2026
$760,000
B
3 beds1 bath1,008 sq ft
426 Lloyd Ave, San Leandro, CA 94578
SOLD APR 3, 2026
$760,000
C
2 beds1 bath806 sq ft
527 Colby, Ashland, CA 94580
SOLD SEP 15, 2026
$710,000
D
3 beds1 bath1,014 sq ft
15799 Dermody Ave, Ashland, CA 94580
SOLD SEP 23, 2026
$750,000
E
3 beds1 bath1,176 sq ft
868 Videll St, Ashland, CA 94580
SOLD SEP 24, 2026
$610,000
F
3 beds1 bath1,192 sq ft
487 Violet St, San Leandro, CA 94578
LPT Realty, Inc, LPT Realty, Inc

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Earn from this home

Sell

$608,896

Est. take-home

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Rent

$2,389/mo

Redfin rental estimate

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Market trends in 94580, CA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

101.6%

+0.4% MoM

Median sale price

$829K

$16K MoM

Avg. days on market

14d

1 days MoM

Recently sold homes

11 MoM

New listings for sale

OPEN SUN, 1:30PM TO 4PM
$799,000
3 beds2 baths1,596 sq ft
15738 Via Seco, San Lorenzo, CA 94580
OPEN SUN, 1PM TO 4PM
$874,888
3 beds1 bath1,063 sq ft
874 Mooney Ave, Ashland, CA 94580
$788,000
3 beds1 bath986 sq ft
16081 Via Media, San Lorenzo, CA 94580
OPEN SUN, 12PM TO 3PM
$949,000
3 beds2 baths1,403 sq ft
874 Via Bregani, San Lorenzo, CA 94580
PMZ Real Estate
See all

Provided by Redfin

Sale history for 531 Colby St

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2025

$1,463 (+6.0%)

$32,760 + $25,508

$58,268

2024

$1,380 (−1.0%)

$32,118 + $25,008

$57,126

2023

$1,395 (+3.2%)

$31,488 + $24,517

$56,005

2022

$1,352 (+3.8%)

$30,266 + $23,565

$53,831

2021

$1,302 (+3.6%)

$30,266 + $23,565

$53,831

2020

$1,256 (+1.7%)

$29,672 + $23,103

$52,775

2019

$1,235 (+13.2%)

$29,368 + $22,867

$52,235

2018

$1,092 (+4.3%)

$28,792 + $22,418

$51,210

2017

$1,047 (+5.5%)

$27,674 + $21,548

$49,222

2016

$992 (+2.7%)

$27,674 + $21,548

$49,222

2015

$966 (+1.6%)

$27,132 + $21,125

$48,257

2014

$951 (+1.8%)

$26,201 + $20,400

$46,601

2013

$934 (+1.6%)

$26,201 + $20,400

$46,601

2012

$919 (+2.9%)

$26,082 + $20,308

$46,390

2011

$893 (−0.1%)

$25,571 + $19,910

$45,481

2010

$894 (+1.0%)

$25,070 + $19,520

$44,590

2009

$885 (+8.9%)

$24,882 + $19,374

$44,256

2008

$813

$24,942 + $19,420

$44,362

Tax history for 531 Colby St

Year

Property tax

Land + Additions

Assessment*

2025

$1,463 (+6.0%)

$32,760 + $25,508

$58,268

2024

$1,380 (−1.0%)

$32,118 + $25,008

$57,126

2023

$1,395 (+3.2%)

$31,488 + $24,517

$56,005

2022

$1,352 (+3.8%)

$30,266 + $23,565

$53,831

2021

$1,302 (+3.6%)

$30,266 + $23,565

$53,831

2020

$1,256 (+1.7%)

$29,672 + $23,103

$52,775

2019

$1,235 (+13.2%)

$29,368 + $22,867

$52,235

2018

$1,092 (+4.3%)

$28,792 + $22,418

$51,210

2017

$1,047 (+5.5%)

$27,674 + $21,548

$49,222

2016

$992 (+2.7%)

$27,674 + $21,548

$49,222

2015

$966 (+1.6%)

$27,132 + $21,125

$48,257

2014

$951 (+1.8%)

$26,201 + $20,400

$46,601

2013

$934 (+1.6%)

$26,201 + $20,400

$46,601

2012

$919 (+2.9%)

$26,082 + $20,308

$46,390

2011

$893 (−0.1%)

$25,571 + $19,910

$45,481

2010

$894 (+1.0%)

$25,070 + $19,520

$44,590

2009

$885 (+8.9%)

$24,882 + $19,374

$44,256

2008

$813

$24,942 + $19,420

$44,362

*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

Single-Family Residence Districts

Single-family residence districts, hereinafter designated as R-1 districts, are established to provide for and protect established neighborhoods of one-family dwellings, and to provide space in suitable locations for additional development of this kind, together with appropriate community facilities and allowance for restricted interim cultivation of the soil compatible with such low-density residential development.

Permitted uses

Include but are not limited to:

Housing-Single unit
Agriculture-Cropland
Agriculture-Grove / orchard

Jan 16, 2024 • Final

Building

Remodel a single-family home according to plans, including the kitchen and bathroom. Replace windows throughout the residence, relocate a window in a bedroom, and convert a kitchen window into an exterior door. Install a new furnace in the attic, replace the water heater, re-pipe the sanitary sewer line, upgrade the electrical service, and convert a portion of the attached garage into a laundry room.

Electrical

HVAC

Plumbing

Remodel

Mar 10, 2023 • Final

Building

Perform voluntary partial underpinning and foundation repair on a single-family home. Underpin the home with pipe piles and brackets. Remove and replace the entry porch with a concrete slab.

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

Room Information
# of Rooms: 4

Exterior

Exterior Information
Building Style Type: Rectangular Design
Construction Type: Wood
Building Construction Quality: Average

Property Information
Subdivision Name: COLBY PARK
Living Sq. Ft: 849
Building Sq. Ft: 849
# of Units: 1
# of Stories: 1

Lot Information
# of Buildings: 1
Land Sq. Ft: 5,040
Legal Lot Number: 14,15
Municipality Name: SAN LORENZO UNINCORP
Acres: 0.1157
County Use Description: SINGLE FAMILY RESIDENTIAL HOME

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 2
Baths: 1.0
Sq. Ft.: 849
Stories: 1.0
Lot Size: 5,040 square feet
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1965
County: Alameda County
APN: 080D056802700

Home facts updated by county records on Sep 17, 2026

Around this home

Schools

Hesperian Elementary School

Public K-5 • Assigned • 0.3mi

2/10

Edendale Middle School

Public 6-8 • Assigned • 0.6mi

1/10

San Lorenzo High School

Public 9-12 • Assigned • 0.6mi

3/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

6/10 Flood Factor

Estimated 70-78% chance 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

4/10 Heat Factor

7 days above 87° expected this year, 14 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

Ashland, CA • 94580

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 11.2 hours in June and 4.9 hours in December, placing it above the U.S. average for solar exposure.

11.2 hrs

4.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$612,000 – $740,000

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New listings for sale in 94580

OPEN SUN, 1:30PM TO 4PM

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OPEN SUN, 1PM TO 4PM3D WALKTHROUGH

$874,888

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Updated kitchen • Patio room • Newer vanity

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Updated kitchen • Marble countertops • Remodeled bathroom

OPEN SUN, 12PM TO 3PM

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PMZ Real Estate

Home values near 531 Colby St

Data from public records.

Address	Redfin Estimate
552 Colby Street, Ashland, CA 3 Beds \| 1 Baths \| 1014 Sq. Ft.	$692,378
527 Colby Street, Ashland, CA 2 Beds \| 1 Baths \| 806 Sq. Ft.	$770,193

Address	Redfin Estimate
524 Colby Street, Ashland, CA 2 Beds \| 1 Baths \| 806 Sq. Ft.	$634,456
556 Colby Street, Ashland, CA 2 Beds \| 1 Baths \| 960 Sq. Ft.	$693,907

Address	Redfin Estimate
523 Colby Street, Ashland, CA 3 Beds \| 1 Baths \| 1434 Sq. Ft.	$727,607
536 Colby Street, Ashland, CA 3 Beds \| 2 Baths \| 1194 Sq. Ft.	$748,563

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94580, CA

Sale history for 531 Colby St

Tax history for 531 Colby St

Zoning and permits

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94580

Home values near 531 Colby St

More real estate resources