1631 Rio Blanco Dr is a 1,888 square foot house on a 8,200 square foot lot with 4 bedrooms and 2 bathrooms. - it last sold on September 16, 1988 for $182,000. Based on Redfin's Concord data, we estimate the home's value is $831,295.
Single-familyProperty Type
1969Year Built
8,200 sq ftLot Size
$440Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$831,295
$649K since sold in September 1988$4,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 12% lower than the average sale price ($944K) 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
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
Dec 7, 2018 • Final
Building
Demolish a swimming pool and backfill for landscaping. Break holes in the structure and break the bond beam down below grade to restore the original grade.
Demolition
Mar 11, 2013 • Final
Building
Replace the furnace and air conditioning unit with a high-efficiency system.
HVAC
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
Air Conditioning Type: Central
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 9
Exterior
Exterior Information
Physical Condition: Good
Building Style Type: Ranch
Construction Type: Frame
Building Construction Quality: Good
Exterior Wall: Stucco
Pool Information
Has Pool
Property Information
Subdivision Name: SUBDIVISION 3617
Living Sq. Ft: 1,888
Ground Floor Sq. Ft: 1,888
Building Sq. Ft: 2,421
# of Stories: 1
Legal Description: TRACT 3617 LOT 4
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 533
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,200
Legal Lot Number: 4
Acres: 0.1882
Depth Footage: 100
Front Footage: 82
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 1,888
Stories: 1.0
Lot Size: 8,200 square feet
Style: Single Family Residential
Year Built: 1969
Year Renovated: 1970
County: Contra Costa County
APN: 1160200356
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
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
85
56
91
59
86
58
79
54
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
$790,000 – $956,000
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