Parcel Context · Public-Records Property BriefAPN 048-026-01
328 A Melrose Ave
Mill Valley 94941 · Homestead · Unincorporated Marin · Coordinates: 37.89355, -122.54533
Parcel & Assessor
- Lot size:
- 19,689 sq ft (0.45 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 328A MELROSE AVE; 328 MELROSE AVE
Zoning & Land Use
R1 — Residential Single Family (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R1 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R1, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R1, a single-family residential zone. The lot is 19,689 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
- High Fire Hazard Severity Zone (State Responsibility Area) (all of the lot, map Apr 1, 2024)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all 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)
HUD Small Area FMR (ZIP 94941) · FY 2026
Studio $2,730 · 1BR $3,270 · 2BR $3,960 · 3BR $5,060 · 4BR $5,240
ACS 2020–2024 Median Gross Rent (Homestead):$3,500+ Source: ACS 2020–2024 5-year estimates. Geography: Homestead.
ACS 2020–2024 Median Gross Rent (ZIP 94941):$3,100±$331 Source: ACS 2020–2024 5-year estimates. Geography: Mill Valley.
Zillow Home Value Index (ZIP 94941, September 2026):$2,181,389
ACS 2020–2024 Median Home Value (Homestead):$2,000,000+ Source: ACS 2020–2024 5-year estimates. Geography: Homestead.
ACS 2020–2024 Median Home Value (ZIP 94941):
Permit & Project History on This Parcel (5 permits, 2 grouped projects)
Accessory dwelling unit at 328 Melrose Ave (adu 328a)Stage: Issued · 1 units · $100,000 declared valuation · Last record Aug 26, 2026
New home at 328 Melrose AveStage: Finaled / completed · 1 units · $1,000,000 declared valuation · Last record Feb 24, 2021
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 182439 | Accessory dwelling unit (new or conversion) | Issued | Iss. Aug 26, 2026 | $100,000 | Poolhouse With Bedroom & Bath; Deck - Changed To Adu Per Debbie Ballem 4/2/26 - Fees Redone, Kp |
| 182055 | Pool / spa | Issued | Iss. Jul 8, 2026 | $250,000 | Pool; Expand Deck |
| 92808 | Other | Applied | App. Nov 22, 2024 | $45,000 | New Deck And New Landscaping Work |
| 92807 |