252 Sycamore Ave
Mill Valley 94941 · Mill Valley · Coordinates: 37.89805, -122.53453
Parcel & Assessor
- Lot size:
- 9,496 sq ft (0.22 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 252 SYCAMORE AVE
Zoning & Land Use
RS-6 — Single Fam Res (min 6,000 SF) (Mill Valley)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RS-6 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotPossible, with conditions
Zoned RS-6, a single-family residential zone. FEMA regulatory floodway covers about 14% of the lot: SB 9 requires a no-rise certification.
- SB 9: split into two lotsPossible, with conditions
Zoned RS-6, a single-family residential zone. The lot is 9,496 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original. FEMA regulatory floodway covers about 14% of the lot: SB 9 requires a no-rise certification.
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 AE: 1% annual chance flood (Special Flood Hazard Area) (about 86% of the lot); Zone AE: regulatory floodway (Special Flood Hazard Area) (about 14% of the lot) · FIRM panel 06041C0468F, 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: $1,923,000 – $2,601,000 · Status: Off market
HUD Small Area FMR (ZIP 94941) · FY 2026
Studio $2,730 · 1BR $3,270 · 2BR $3,960 · 3BR $5,060 · 4BR $5,240
Nearby Activity (½ mile radius, since October 2024)
22 active or recent development projects (21 housing units across completed, permitted, and pipeline stages) and 154 total building permits recorded within ½ mile.
- New construction1 permit
- Adds housing (ADU)6 permits (6 units)
- Demolition2 permits
- Additions & renovations12 permits
- Building systems101 permits
- Repairs3 permits
- Other29 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home (Entitled)On this parcel
Active in "Entitled" for 8 yr (first record Oct 23, 2018) with no new permit activity recorded in 8 yr.
- 25 new homes (Entitled)0.32 mi NE
Active in "Entitled" for 3.5 yr (first record May 6, 2023) with no new permit activity recorded in 3.5 yr. High-impact scale (25 housing units, 6 deed-restricted affordable across 0 permits).
- New home at 107 Montford Ave (Issued)0.38 mi W
Active in "Issued" for 3.9 yr (first record Dec 15, 2022) with no new permit activity recorded in 2.5 yr. High-impact scale (1 housing unit, $1,375,000 declared valuation across 1 permit).
- New home at 204 Reed St (Issued)0.47 mi SW
Active in "Issued" for 4.2 yr (first record Aug 5, 2022) with no new permit activity recorded in 3.5 yr. High-impact scale (1 housing unit, $950,000 declared valuation across 1 permit).
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 2018).