4103 Happy Valley Rd
Lafayette 94549 · Lafayette · Coordinates: 37.90823, -122.16045
Parcel & Assessor
- Lot size:
- 60,113 sq ft (1.38 ac)
- Assessor use:
- Single Family, 1 residence on 1 site, with or without
- Tax rate area:
- 14002
- Addresses on lot:
- 4103 HAPPY VALLEY RD; 4103 HAPPY VALLEY RD 6 4103A
Zoning & Land Use
No published city zoning district at parcel centroid.
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
We don't have a zoning map for Lafayette.
- SB 9: two homes on the lotCan't tell
We don't have a zoning map for Lafayette.
- SB 9: split into two lotsCan't tell
We don't have a zoning map for Lafayette.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- High Fire Hazard Severity Zone (Local Responsibility Area) (all of the lot, map Mar 24, 2025)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06013C0266F, effective June 16, 2009
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,810,000 – $2,448,000 · Status: Off market
HUD Small Area FMR (ZIP 94549) · FY 2026
Studio $2,880 · 1BR $3,210 · 2BR $3,920 · 3BR $5,010 · 4BR $5,940
Nearby Activity (½ mile radius, since —)
5 active or recent development projects (5 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- Clark ADU (Issued)On this parcel
Active in "Issued" for 3.5 yr (first record May 5, 2023) with no new permit activity recorded in 3.5 yr.
- Ward ADU45-24 (Issued)0.17 mi SE
Active in "Issued" for 18 mo (first record May 8, 2025) with no new permit activity recorded in 18 mo.
- Ward ADU45-24 (Entitled)0.17 mi SE
Active in "Entitled" for 23 mo (first record Nov 25, 2024) with no new permit activity recorded in 23 mo.
- Erfani SB906-25 (Issued)0.31 mi S
Active in "Issued" for 15 mo (first record Aug 5, 2025) with no new permit activity recorded in 15 mo.
Permit & Project History on This Parcel (0 permits, 1 grouped projects)
No building permits recorded on this parcel in our dataset.
State HCD Housing Element APR records on this parcel: 1 entry (report years 2023).