1635 Rio Blanco Dr is a 1,787 square foot house on a 8,000 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on September 29, 2006 for $545,000. Based on Redfin's Concord data, we estimate the home's value is $815,770.
Single-familyProperty Type
1969Year Built
8,000 sq ftLot Size
$457Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$815,770
$271K since sold in September 2006$5,000 since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.2% lower than the average sale price ($826K) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40199216
Aug 21, 2006
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #40191898
Aug 17, 2006
Listing Removed
—
Public Records
Jul 1, 1980
Sold
$105,000
$59/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$9,147 (+2.5%)
$368,968 + $375,803
$744,771
2025
$8,924 (+2.6%)
$368,968 + $375,803
$744,771
2024
$8,697 (+1.9%)
$361,734 + $368,435
$730,169
2023
$8,535 (+0.5%)
$354,642 + $361,211
$715,853
2022
$8,491 (+2.5%)
$347,689 + $354,129
$701,818
2021
$8,285 (+0.7%)
$340,872 + $347,186
$688,058
2020
$8,229 (+1.2%)
$334,189 + $340,379
$674,568
2019
$8,129 (+3.9%)
$330,763 + $336,889
$667,652
2018
$7,822 (+17.5%)
$324,278 + $330,284
$654,562
2017
$6,659 (+8.6%)
$270,991 + $276,009
$547,000
2016
$6,133 (+8.9%)
$270,991 + $276,009
$547,000
2015
$5,630 (+10.7%)
$250,183 + $254,817
$505,000
2014
$5,084 (+23.0%)
$203,119 + $206,881
$410,000
2013
$4,134 (+12.6%)
$203,119 + $206,881
$410,000
2012
$3,672 (−14.6%)
$165,964 + $169,036
$335,000
2011
$4,300 (−0.5%)
$146,643 + $149,357
$296,000
2010
$4,324 (+0.5%)
$177,606 + $180,894
$358,500
2009
$4,301 (−27.2%)
$179,835 + $183,165
$363,000
2008
$5,909
$179,835 + $183,165
$363,000
Tax history for 1635 Rio Blanco Dr
Year
Property tax
Land + Additions
Assessment*
2026
$9,147 (+2.5%)
$368,968 + $375,803
$744,771
2025
$8,924 (+2.6%)
$368,968 + $375,803
$744,771
2024
$8,697 (+1.9%)
$361,734 + $368,435
$730,169
2023
$8,535 (+0.5%)
$354,642 + $361,211
$715,853
2022
$8,491 (+2.5%)
$347,689 + $354,129
$701,818
2021
$8,285 (+0.7%)
$340,872 + $347,186
$688,058
2020
$8,229 (+1.2%)
$334,189 + $340,379
$674,568
2019
$8,129 (+3.9%)
$330,763 + $336,889
$667,652
2018
$7,822 (+17.5%)
$324,278 + $330,284
$654,562
2017
$6,659 (+8.6%)
$270,991 + $276,009
$547,000
2016
$6,133 (+8.9%)
$270,991 + $276,009
$547,000
2015
$5,630 (+10.7%)
$250,183 + $254,817
$505,000
2014
$5,084 (+23.0%)
$203,119 + $206,881
$410,000
2013
$4,134 (+12.6%)
$203,119 + $206,881
$410,000
2012
$3,672 (−14.6%)
$165,964 + $169,036
$335,000
2011
$4,300 (−0.5%)
$146,643 + $149,357
$296,000
2010
$4,324 (+0.5%)
$177,606 + $180,894
$358,500
2009
$4,301 (−27.2%)
$179,835 + $183,165
$363,000
2008
$5,909
$179,835 + $183,165
$363,000
*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
RS8
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-8 corresponding to the minimum lot size 8000. 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
Feb 22, 2013 • Final
Building
Remove and replace a water heater.
Plumbing
Water heater
Feb 22, 2013 • Final
Building
Install a gas fireplace insert.
Gas
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
Heating & Cooling
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 8
Exterior
Exterior Information
Physical Condition: Good
Building Construction Quality: Good
Property Information
Living Sq. Ft: 1,787
Ground Floor Sq. Ft: 1,787
Building Sq. Ft: 1,787
# of Stories: 1
Legal Description: TRACT 3617 LOT 3
Parking & Garage Information
Garage/Parking Sq. Ft: 546
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,000
Legal Lot Number: 3
Acres: 0.1837
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,787
Stories: 1.0
Lot Size: 8,000 square feet
Style: Single Family Residential
Year Built: 1969
Year Renovated: 1969
County: Contra Costa County
APN: 1160200349
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
K - 12
Preschool & daycare
Silverwood Elementary School
Public K-5 • Assigned • 0.3mi
7/10
Pine Hollow Middle School
Public 6-8 • Assigned • 2.1mi
6/10
Concord High School
Public 9-12 • Assigned • 1.1mi
5/10
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
5/10 Fire Factor
5% 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
18 unhealthy days expected this year, 19 days in 30 years
Provided by First Street
Historical weather
Concord, CA • 94521
Average low and high temperatures (°F)
60
40
64
43
72
47
72
48
80
52
85
55
87
57
92
59
85
60
74
52
64
46
57
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.8 hours in
June and 4.8 hours in December, placing it above the
U.S. average for solar exposure.
11.8 hrs
4.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$775,000 – $939,000
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