57 Laura Ln
Fairfax 94930 · Unincorporated Fairfax · Unincorporated Marin · Coordinates: 38.00005, -122.59262
Executive Verdict · Public-Records Synthesis
Zoned R1 in Unincorporated Marin with likely ADU & SB 9 infill eligibility and mapped CAL FIRE moderate fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,435,000 ($1,263,000–$1,607,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned R1 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 8,276 sq ft lot.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$148,680 contributory est.)
Public building records show issued construction/renovation work on this parcel (5 total permits, latest Nov 30, 2022).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
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 (State Responsibility Area) (all 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 Apr 1, 2024)
- ! Delayed or open permit activity on this parcel
Addition (adds square footage) (170837): Issued after 16 mo (3.1× the 160d median) — slower than 90% of addition (adds square footage) permits in Unincorporated Marin (median 160d, 90th pct 440d, n=316).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 3 slow or stalled nearby projects within ½ mile
Closest lead: 54 new homes (0.42 mi W, issued). 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:
- 8,276 sq ft (0.19 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 57 LAURA LN
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 8,276 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 (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 06041C0289D, effective May 4, 2009
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,263,000 – $1,607,000 · Status: Off market
HUD Small Area FMR (ZIP 94930) · FY 2026
Studio $2,230 · 1BR $2,680 · 2BR $3,240 · 3BR $4,140 · 4BR $4,290
Developments Deserving Closer Investigation & Active Area Builders
- 54 new homes (Issued)0.42 mi W
Active in "Issued" for 8 yr (first record Nov 26, 2018) with no new permit activity recorded in 8 yr. High-impact scale (54 housing units, 54 deed-restricted affordable across 0 permits).
- Addition (adds square footage) (170837) (Issued)On this parcel
Issued after 16 mo (3.1× the 160d median) — slower than 90% of addition (adds square footage) permits in Unincorporated Marin (median 160d, 90th pct 440d, n=316).
- New home (Entitled)0.47 mi N
In "Entitled" for 5.3 yr (since Jul 9, 2021), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home (Issued)0.47 mi SE
Active in "Issued" for 14 mo (first record Sep 18, 2025) with no new permit activity recorded in 14 mo.
Entity-resolved builders & contractors in ½ mile: Owner Builder (1 on parcel, 10 in ½ mi · Addition (adds square footage)); Owner (1 on parcel, 7 in ½ mi · Remodel / interior alteration); Bert Bartsch (1 on parcel, 1 in ½ mi · Solar / battery storage); Peter Levi Plumbing (1 on parcel, 1 in ½ mi · HVAC / heat pump); Shining Star Electric (1 on parcel, 1 in ½ mi · Electrical / panel).
Permit & Project History on This Parcel (5 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B31910 | Solar / battery storage | Issued | Iss. Nov 30, 2022 | $45,000 | 11 KW rooftop , flush mount, 20KW battery backup solar PV system , one central inverter, SolArk 12 KW , 32 each SilFab 3… |
| B31706 | Electrical / panel | Issued | Iss. Nov 8, 2022 | $4,000 | Installation new surface mounted, 200 amp Meter /Main with electrical distribution center, on the left side of the home.… |
| B31229 | HVAC / heat pump | Issued | Iss. Sep 29, 2022 | $40,000 | Install tankless WH and 3 ton ducted HP system with matching air handler; replace 6 ducts in crawlspace. HP M# EL18XPV-0… |
| 170837 | Addition (adds square footage) | Issued | Iss. Mar 10, 2022 | $212,000 | Remod, Addtn, Deck, Conversn, Ret Wall |
| B28976 |