21 A Bay Way
San Rafael 94901 · San Rafael · Coordinates: 37.97419, -122.49346
Parcel & Assessor
- Lot size:
- 13,199 sq ft (0.30 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 21A BAY WAY; 21 BAY WAY
Zoning & Land Use
R10 (San Rafael)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R10 (single-family residential): state law allows ADUs where homes are allowed. We read R10 from the zoning code's name; we haven't checked it against San Rafael's code text.
- SB 9: two homes on the lotLikely eligible
Zoned R10, a single-family residential zone. We read R10 from the zoning code's name; we haven't checked it against San Rafael's code text.
- SB 9: split into two lotsLikely eligible
Zoned R10, a single-family residential zone. We read R10 from the zoning code's name; we haven't checked it against San Rafael's code text. The lot is 13,199 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
- Not in a State-mapped fire hazard severity zone
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06041C0476E, 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: $1,260,000 – $1,704,000 · Status: Off market
HUD Small Area FMR (ZIP 94901) · FY 2026
Studio $2,150 · 1BR $2,580 · 2BR $3,120 · 3BR $3,990 · 4BR $4,130
Nearby Activity (½ mile radius, since October 2024)
4 active or recent development projects (17 housing units across completed, permitted, and pipeline stages) and 38 total building permits recorded within ½ mile.
- New construction1 permit
- Adds housing (ADU)2 permits (2 units)
- Additions & renovations7 permits
- Building systems16 permits
- Repairs2 permits
- Other10 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)On this parcel
Active in "Issued" for 5 yr (first record Nov 10, 2021) with no new permit activity recorded in 5 yr.
- New home at 53 Montecito Rd (Issued)0.39 mi W
Active in "Issued" for 8.8 yr (first record Dec 27, 2017) with no new permit activity recorded in 8.5 yr. High-impact scale (1 housing unit, $1,498,000 declared valuation across 1 permit).
- New home at 40 Montecito Rd (aka 40a) (Issued)0.49 mi W
Active in "Issued" for 5.3 yr (first record Jul 16, 2021) with no new permit activity recorded in 3.9 yr. High-impact scale (1 housing unit, $2,515,850 declared valuation across 1 permit).
- New home (Issued)440 ft W
Active in "Issued" for 6.1 yr (first record Sep 17, 2020) with no new permit activity recorded in 6.1 yr.
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 2021).