9 Ames Ave
Ross 94957 · Ross · Coordinates: 37.96380, -122.56189
Parcel & Assessor
- Lot size:
- 45,215 sq ft (1.04 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 9 AMES AVE; 9 AMES AVE UNIT 9 A
Zoning & Land Use
R-1_B-A — SINGLE FAMILY RESIDENTIAL (Ross)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R-1_B-A (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R-1_B-A, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R-1_B-A, a single-family residential zone. The lot is 45,215 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Moderate 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 06041C0458F, effective March 16, 2016
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $4,117,000 – $5,571,000 · Status: Off market
HUD Small Area FMR (ZIP 94957) · FY 2026
Studio $3,110 · 1BR $3,730 · 2BR $4,510 · 3BR $5,760 · 4BR $5,970
Nearby Activity (½ mile radius, since —)
11 active or recent development projects (11 housing units across completed, permitted, and pipeline stages) and 0 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- 9 Ames (Issued)On this parcel
Active in "Issued" for 13 mo (first record Sep 17, 2025) with no new permit activity recorded in 13 mo.
- 147 Lagunitas (Issued)0.21 mi S
Active in "Issued" for 3.7 yr (first record Feb 28, 2023) with no new permit activity recorded in 3.7 yr. High-impact scale (1 housing unit, 1 deed-restricted affordable across 0 permits).
- 5 new homes (Entitled)0.43 mi N
Active in "Entitled" for 2.3 yr (first record Jul 2, 2024) with no new permit activity recorded in 2.3 yr. High-impact scale (5 housing units across 0 permits).
- 12 Garden (Issued)0.43 mi NE
Active in "Issued" for 19 mo (first record Apr 4, 2025) with no new permit activity recorded in 19 mo. High-impact scale (1 housing unit, 1 deed-restricted affordable across 0 permits).
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 2025).