100 Tiburon Blvd
Mill Valley 94941 · Strawberry · Unincorporated Marin · Coordinates: 37.90204, -122.51186
Executive Verdict · Public-Records Synthesis
Zoned H1 in Unincorporated Marin and mapped CAL FIRE moderate fire hazard severity zone (local responsibility area) due diligence; benchmark value $2,322,000 ($2,043,000–$2,601,000).
Upsides & Opportunities
- ✓ 2 documented municipal building permits on file
On-parcel permit history is indexed through Nov 30, 2015, letting you verify roof, HVAC, electrical, or structural work against seller disclosures.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
- ✓ Above-average reinvestment in Strawberry
43 substantial renovation & housing permits over 24 months (28.4 per 1,000 parcels vs. 16.4 citywide baseline) (#1 of 22 neighborhoods).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (Strawberry)
Watchouts & Due Diligence
- ! Mapped flood awareness zone (Zone X: minimal flood hazard)
all of the lot of the parcel intersects Zone X: minimal flood hazard. Outside mandatory federal SFHA insurance rules, but check local drainage and finished-floor requirements.
Source: FEMA National Flood Hazard Layer (parcel polygon)
- ! CAL FIRE Moderate Fire Hazard Severity Zone (Local Responsibility Area) (about 31% of the lot of lot)
Located in a mapped Fire Hazard Severity Zone. Expect Chapter 7A ignition-resistant building standards, defensible-space inspections, and stricter property insurance underwriting.
Source: CAL FIRE FHSZ (map Mar 24, 2025)
- ! Delayed or open permit activity on this parcel
Other (72474): Pending in review for 12 yr — slower than 90% of other permits in Unincorporated Marin (median 0d, 90th pct 71d, n=1,560).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 5 slow or stalled nearby projects within ½ mile
Closest lead: New home at 55 Thomas Dr (0.25 mi N, applied). Inspect timeline history before assuming near-term completion.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · HCD APR (½-mile radius)
Parcel & Assessor
- Lot size:
- 18,905 sq ft (0.43 ac)
- Assessor use:
- Commercial - Improved
- Addresses on lot:
- 100 TIBURON BLVD
Zoning & Land Use
H1 — Limited Roadside Business (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUUnlikely
Zoned H1 (commercial): the zone doesn't allow homes, so state ADU rules don't apply.
- SB 9: two homes on the lotUnlikely
Zoned H1 (commercial), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned H1 (commercial), not a single-family residential zone.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Moderate Fire Hazard Severity Zone (Local Responsibility Area) (about 31% of the lot, map Mar 24, 2025)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06041C0469F, 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: $2,043,000 – $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
Developments Deserving Closer Investigation & Active Area Builders
- New home at 55 Thomas Dr (Applied)0.25 mi N
In "Applied" for 6.2 yr (since Sep 1, 2020), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121). High-impact scale (1 housing unit, $1,000,000 declared valuation across 1 permit).
- Other (72474) (Applied)On this parcel
Pending in review for 12 yr — slower than 90% of other permits in Unincorporated Marin (median 0d, 90th pct 71d, n=1,560).
- Accessory dwelling unit at 55 Plaza Dr (adu 55a) (Issued)0.37 mi NW
Active in "Issued" for 2.6 yr (first record Apr 17, 2024) with no new permit activity recorded in 19 mo. High-impact scale (1 housing unit, $790,000 declared valuation across 1 permit).
- New home at 153 Richardson Dr (adu 153a) (Issued)0.4 mi SE
Active in "Issued" for 3.4 yr (first record Jun 5, 2023) with no new permit activity recorded in 16 mo. High-impact scale (1 housing unit, $1,493,000 declared valuation across 1 permit).
Entity-resolved builders & contractors in ½ mile: Northgate Roofing (1 on parcel, 1 in ½ mi · Roof replacement); Westower Communications (1 on parcel, 1 in ½ mi · Other); Owner Builder (63 in ½ mi · Remodel / interior alteration); Owner (33 in ½ mi · Remodel / interior alteration); Juan Calmell (6 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (2 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 149967 | Roof replacement | Issued | Iss. Nov 30, 2015 | $12,000 | Reroof - E-Insp***Extended 11/30/19 |
| 72474 | Other | Applied | App. Nov 12, 2014 | $10,000 | Remove Metro Pcs Radio Equip Only - Cabinets, Antennae, And Conduits/Coax Cable To Remain (Permit Cancelled Per Email Fr… |