1904 Risdon Rd is a 884 square foot house on a 0.27 acre lot with 2 bedrooms and 1 bathroom. Based on Redfin's Concord data, we estimate the home's value is $635,620.
Single-familyProperty Type
1948Year Built
0.27 acresLot Size
$719Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$635,620
$15K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 14.2% lower than the average sale price ($741K) 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
$1,711 (+3.9%)
$27,705 + $36,819
$64,524
2024
$1,647 (+3.5%)
$27,162 + $36,098
$63,260
2023
$1,591 (+7.8%)
$26,630 + $35,391
$62,021
2022
$1,476 (+4.2%)
$26,108 + $34,698
$60,806
2021
$1,417 (+2.0%)
$25,597 + $34,018
$59,615
2020
$1,389 (+1.3%)
$25,096 + $33,351
$58,447
2019
$1,371 (+5.2%)
$24,839 + $33,010
$57,849
2018
$1,303 (+5.1%)
$24,352 + $32,363
$56,715
2017
$1,240 (+0.2%)
$23,407 + $31,107
$54,514
2016
$1,237 (+18.9%)
$23,407 + $31,107
$54,514
2015
$1,040 (+5.7%)
$22,949 + $30,498
$53,447
2014
$984 (+5.4%)
$22,163 + $29,452
$51,615
2013
$933 (+5.5%)
$22,163 + $29,452
$51,615
2012
$885 (+2.1%)
$22,063 + $29,319
$51,382
2011
$866 (+2.7%)
$21,631 + $28,745
$50,376
2010
$843 (+0.2%)
$21,207 + $28,182
$49,389
2009
$842 (+3.1%)
$21,049 + $27,972
$49,021
2008
$816
$21,100 + $28,039
$49,139
Tax history for 1904 Risdon Rd
Year
Property tax
Land + Additions
Assessment*
2025
$1,711 (+3.9%)
$27,705 + $36,819
$64,524
2024
$1,647 (+3.5%)
$27,162 + $36,098
$63,260
2023
$1,591 (+7.8%)
$26,630 + $35,391
$62,021
2022
$1,476 (+4.2%)
$26,108 + $34,698
$60,806
2021
$1,417 (+2.0%)
$25,597 + $34,018
$59,615
2020
$1,389 (+1.3%)
$25,096 + $33,351
$58,447
2019
$1,371 (+5.2%)
$24,839 + $33,010
$57,849
2018
$1,303 (+5.1%)
$24,352 + $32,363
$56,715
2017
$1,240 (+0.2%)
$23,407 + $31,107
$54,514
2016
$1,237 (+18.9%)
$23,407 + $31,107
$54,514
2015
$1,040 (+5.7%)
$22,949 + $30,498
$53,447
2014
$984 (+5.4%)
$22,163 + $29,452
$51,615
2013
$933 (+5.5%)
$22,163 + $29,452
$51,615
2012
$885 (+2.1%)
$22,063 + $29,319
$51,382
2011
$866 (+2.7%)
$21,631 + $28,745
$50,376
2010
$843 (+0.2%)
$21,207 + $28,182
$49,389
2009
$842 (+3.1%)
$21,049 + $27,972
$49,021
2008
$816
$21,100 + $28,039
$49,139
*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
RS7
Residential Single-Family District
The RS district is applied to areas of the city appropriate for single-family residential uses in neighborhoods at densities of 2.5 to 10 units per net acre, subject to appropriate standards. The RS zoning districts generally apply to the single-family residential districts with development existing at the time of the adoption of this development code. The specific allowable density for each parcel is shown on the zoning map by a numerical suffix residential density designator RS-7 corresponding to the minimum lot size 7000. The RS district is consistent with and implements the low density residential (LDR) land use designation of the general plan.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Senior
Recreation
Agriculture-Cropland
Agriculture-Grove / orchard / vineyard
Park & open space
May 24, 2024 • Final
Building
Install a new sewer line from an existing home and detached garage to the city main sewer line. Abandon the existing septic system upon completion of the new sewer connection.
Plumbing
Feb 22, 2013 • Final
Building
Overlay one layer of composition shingles over the existing roof.
Roofing
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
Property Information
Subdivision Name: WALNUT ORCHARD
Living Sq. Ft: 884
Ground Floor Sq. Ft: 884
Building Sq. Ft: 884
# of Stories: 1
Legal Description: WALNUT ORCHARD TRACT POR LOT 7
Parking & Garage Information
Garage/Parking Sq. Ft: 728
Lot Information
# of Buildings: 1
Land Sq. Ft: 11,761
Legal Lot Number: 7
Acres: 0.27
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 884
Stories: 1.0
Lot Size: 0.27 acres
Style: Single Family Residential
Year Built: 1948
Year Renovated: 1948
County: Contra Costa County
APN: 1473500096
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Ygnacio Valley Elementary School
Public K-5 • Assigned • 0.5mi
2/10
Oak Grove Middle School
Public 6-8 • Assigned • 0.3mi
4/10
Ygnacio Valley High School
Public 9-12 • Assigned • 0.6mi
3/10
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
0.62% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 96° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
17 unhealthy days expected this year, 17 days in 30 years
Provided by First Street
Historical weather
Concord, CA • 94518
Average low and high temperatures (°F)
61
41
64
44
72
49
71
50
79
55
83
57
83
58
90
60
86
60
79
55
65
47
57
45
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.5 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.5 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$604,000 – $731,000
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