4103 Happy Valley Rd is a 3,027 square foot house on a 1.38 acre lot with 4 bedrooms and 2.5 bathrooms. - it last sold on July 15, 1993 for $780,000. Based on Redfin's Lafayette data, we estimate the home's value is $2,644,795.
Single-familyProperty Type
1972Year Built
1.38 acresLot Size
$874Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,644,795
$1.9M since sold in July 1993$137K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.7% lower than the average sale price ($2.87M) 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.
Permits
Jul 30, 2025 • Final
Building - residential electrical
Remove and reinstall existing solar panels. Provide a copy of the original county-stamped approved plans for the final inspection.
Electrical
Roofing
Solar
Aug 9, 2023 • Active
Building/residential/r/adu-2nd unit
Construct a detached accessory dwelling unit. The structure must comply with ember resistant construction standards for high fire hazard severity zones. A solar photovoltaic system is not required per the revised energy report.
ADU
Electrical
Solar
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.