4130 Happy Valley Rd is a 5,853 square foot house on a 1.03 acre lot with 5 bedrooms and 6 bathrooms. - it last sold on December 23, 1993 for $867,000. Based on Redfin's Orinda data, we estimate the home's value is $4,572,981.
Single-familyProperty Type
1987Year Built
1.03 acresLot Size
$781Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$4,572,981
$3.7M since sold in December 1993$323K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 2.3% higher than the average sale price ($4.47M) 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
PD
Planned Development District
The specific purposes of the PD planned development district are to: Establish a procedure for the development of large parcels of land in both residential areas and downtown in order to reduce or eliminate the rigidity, delay and inequity that otherwise would result from application of zoning standards and procedures designed primarily for small parcels; Ensure orderly and thorough planning and review procedures that will result in quality design and the creation, improvement and preservation of common open space; Encourage design variety and avoid monotony in large developments by allowing greater freedom in selecting the means to provide access, light, open space and amenity; Provide for flexibility, consistent with the general plan, in the application of certain land use and development regulations found in base districts, such as minimum lot size, lot width or depth, and building Setbacks or heights, to take advantage of unique land use or site characteristics and to preserve unique or significant environmental features, including viewsheds, undisturbed hillsides and ridgelines and wildlife habitat; Encourage the preservation of serviceable existing structures of historic value or artistic merit by providing the opportunity to use them imaginatively for purposes other than that for which they were originally intended; Provide for the protection of the public health, safety and welfare by allowing flexibility in site design and improvement to either avoid or remedy areas subject to hazard, including steep slopes, unstable soil conditions and lands subject to flooding; Allow for the use of the planned development zone only where there is a clear, defined benefit to the citizens of Orinda when contrasted with development options of a different base zone for the subject property. The planned development zone shall not be used as a means to enhance development potential of lands which otherwise may not be able to be developed.
Permitted uses
Include but are not limited to:
No uses permitted by right
Aug 1, 2017 • Final
Building/residential/al/alteration
Remove and replace doors in the family room with new doors of the same type.
Remodel
Aug 18, 2016 • Final
Building/residential/al/alteration
Replace a spa tub and increase the floor height to match the existing floor level according to the plans. No other work is included in this permit.
Pool and hot tub
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: 16
Exterior
Pool Information
Has Pool
Property Information
Subdivision Name: SUBDIVISION 6328
Living Sq. Ft: 5,853
Ground Floor Sq. Ft: 2,714
Building Sq. Ft: 5,853
# of Stories: 2
Legal Description: TRACT 6328 LOT 4 EX 1/2 MR
Parking & Garage Information
Garage/Parking Sq. Ft: 1,514
Lot Information
# of Buildings: 1
Land Sq. Ft: 45,000
Legal Lot Number: 4
Acres: 1.0331
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 6.0
Sq. Ft.: 5,853
Stories: 2.0
Lot Size: 1.03 acres
Style: Single Family Residential
Year Built: 1987
Year Renovated: 1989
County: Contra Costa County
APN: 3654500010
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Sleepy Hollow Elementary School
Public K-5 • Assigned • 2.1mi
10/10
Orinda Intermediate School
Public 6-8 • Assigned • 4.2mi
10/10
Acalanes High School
Public 9-12 • Assigned • 3.6mi
10/10
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
4/10 Fire Factor
1% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 92° 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
14 unhealthy days expected this year, 15 days in 30 years
Provided by First Street
Historical weather
Orinda, CA • 94563
Average low and high temperatures (°F)
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55
82
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81
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75
55
62
48
56
45
Jan
Feb
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May
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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
$4.35M – $5.26M
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