· APN 003-022-20 · Fairfax
Zoned RS-6 in Fairfax with likely ADU & SB 9 infill eligibility and mapped CAL FIRE moderate fire hazard severity zone (local responsibility area) due diligence.
Zoned RS-6 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 31,537 sq ft lot.
Source: Fairfax zoning · CA Gov. Code 66314 & 65852.21
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)
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)
Automated synthesis of indexed municipal, county, state, and federal public records — informational context only, not a formal appraisal, survey, or legal/tax determination.
Since November 2024 within ½ mile: 2 permitted.
2 projects with a record in this window, grouped by us from permits and State housing reports. Units are as proposed on each project's latest record and counted at its current stage.
25 permits within ½ mile since November 2024
The map shows new construction, ADUs, demolitions, additions, and renovations. Routine systems work (roofs, HVAC, water heaters) is counted but not mapped. Unit counts are as stated on permits.
Insufficient area benchmark data
New home: Active in "Issued" for 6.3 yr (first record Jul 16, 2020) with no new permit activity recorded in 6.3 yr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
Closest lead: New home at 740 Bolinas Rd (0.34 mi SE, 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)
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: permits located by parcel, ½ mile radius · Retrieved Nov 13, 2026
We don't have building permits for Fairfax, so we can't show what has been permitted nearby.
Permit counts, by the date issued (or applied, if not yet issued). Lot splits are planning cases, which we don't have.
We read public zoning and hazard maps against state law (ADUs: Gov. Code 66314; SB 9: Gov. Code 65852.21 and 66411.7). Local rules, title, tenancy history and site conditions can change the answer. Check with Fairfax's planning department before relying on it.
Sources: County of Marin GIS (MarinMap), Zoning (11 cities and unincorporated Marin) (retrieved Nov 13, 2026) · CAL FIRE Office of the State Fire Marshal, Fire Hazard Severity Zones in the State Responsibility Area (effective 2024-04-01) (retrieved Nov 9, 2026) · CAL FIRE Office of the State Fire Marshal, Fire Hazard Severity Zones in the Local Responsibility Area (map dated 2025-03-24) (retrieved Nov 9, 2026) · FEMA, National Flood Hazard Layer — flood hazard zones (retrieved Nov 9, 2026) · FEMA, National Flood Hazard Layer — FIRM panels (retrieved Nov 9, 2026) · California Geological Survey, Alquist-Priolo Earthquake Fault Zones (retrieved Nov 9, 2026) · Zoning classes: our classification of RS-6 as single-family residential, from the code's name only
Chronological history of building permit applications and issuances, snapshot-dated status changes, State housing entitlements, surrounding development within ½ mile, and area home-value trends.
Permit issued and active for 6.3 yr (first record Jul 16, 2020), with no completion or new permit record in 6.3 yr. · 1 unit
Permit issued and active for 8.6 yr (first record Apr 20, 2018), with no completion or new permit record in 8.6 yr. · 1 unit
Permit issued and active for 5.6 yr (first record Apr 19, 2021), with no completion or new permit record in 5.6 yr. · 1 unit
Permit issued and active for 4.5 yr (first record Apr 26, 2022), with no completion or new permit record in 4.5 yr. · $6,000 declared valuation
Permit issued and active for 4.4 yr (first record Jul 5, 2022), with no completion or new permit record in 4.4 yr. · 1 unit
In "Applied" for 4.2 yr (since Sep 1, 2022), with no new permit record in 3.8 yr. · 1 unit · $195,000 declared valuation
Nearby other (29 Bosque Ave): First appeared in published agency feed
Record B48897 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
45 Bosque Ave · 1 unit · $560,000 valuation
Records span Jul 31, 2024 to May 5, 2026 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
1 unit
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
740 Bolinas Rd · 1 unit · $1 valuation
Records span Apr 12, 2024 to Apr 22, 2024 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
111 Toyon Dr · 1 unit · $195,000 valuation
Records span Sep 1, 2022 to Feb 1, 2023 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
1 unit
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
2 Mora Ave · $6,000 valuation
Records span Apr 26, 2022 to May 16, 2022 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
1 unit
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Building permit reported to State HCD for 1 housing unit (HCD 2020 report)
Reported in 2020 Housing Element Annual Progress Report
SFD · Owner
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: parcel
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Planning entitlement approved for 1 housing unit (HCD 2020 report)
Reported in 2020 Housing Element Annual Progress Report
SFD · Owner
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: parcel
1 unit
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Cross-referenced intelligence from our historical development graph—connecting parcels, permits, entity-resolved builders, empirical review-time distributions, and neighborhood renovation trends.
Explore full Fairfax development graph →Active in "Issued" for 6.3 yr (first record Jul 16, 2020) with no new permit activity recorded in 6.3 yr.
Active in "Issued" for 2.6 yr (first record Apr 12, 2024) with no new permit activity recorded in 2.6 yr.
Active in "Issued" for 5.6 yr (first record Apr 19, 2021) with no new permit activity recorded in 5.6 yr.
Active in "Issued" for 4.4 yr (first record Jul 5, 2022) with no new permit activity recorded in 4.4 yr.
Active in "Issued" for 20 mo (first record Mar 3, 2025) with no new permit activity recorded in 20 mo.
Active in "Applied" for 4.2 yr (first record Sep 1, 2022) with no new permit activity recorded in 3.8 yr.
HUD Metro Fair Market Rent · San Francisco, CA HUD Metro FMR Area
HUD FY 2026 · 40th-percentile gross rentArea home-value benchmarks (not an appraisal)
ZIP & neighborhood mediansUnder California Proposition 13, the seller's historical assessed value does not carry over to a buyer. On sale, the parcel is reassessed at the purchase price: 1.00% base rate ($5,500/yr) + local voter-approved bond debt ($825/yr) + fixed direct levies/Mello-Roos ($450/yr).
Mapped hazard zone insurance context on this parcel:
Model adding a backyard ADU or garage conversion under California's Prop 13 blended new-construction assessment (existing house & land tax base stays intact; only ADU build cost is assessed) and SB 13 impact-fee rules.
−$10,011/yr
Cash needed: $121,000
NOI: $23,362/yr
P&I: $2,781/mo
For $0/mo net cash flow
At $3,600/mo gross rent
| Scenario | Assumptions | Year 1 Rent | Year 1 Cash Flow | Cash-on-Cash | Break-Even Rent | Year 5 Cash Flow |
|---|---|---|---|---|---|---|
| Conservative | −8% starting rent, +3% vacancy, +3% combined maintenance/CapEx, 1.5%/yr rent growth | $3,312/mo | −$1,248/mo | -12.4% | $5,054/mo | −$1,174/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,600/mo | −$834/mo | -8.3% | $4,678/mo | −$557/mo |
| Optimistic (cap-limited) | +6% starting rent, 3% vacancy, 4.5%/yr rent growth (capped by AB 1482 ceiling of 8.6%/yr) | $3,816/mo | −$597/mo | -5.9% | $4,569/mo | −$87/mo |
Rental regulatory context (informational only — not legal advice):
California AB 1482 (Tenant Protection Act, Civ. Code § 1947.12) caps annual rent increases at 5% + local CPI (max 10%) on covered properties.
Issued1 unitsJul 16, 2020 – Jul 16, 2020
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
No building permits are recorded for this parcel since 2016.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel (APN) · Retrieved Nov 13, 2026 · Received and issued dates come from the County of Marin. The county publishes no final or expired status, so an issued permit stays 'Issued' after the work is done.
| Report year | Project / record | Type | Entitled | Permitted | Completed | Deed-restricted |
|---|---|---|---|---|---|---|
| 2020 | — | SFD · Owner | 1 (Jul 16, 2020) | 1 (Feb 22, 2021) | — | — |
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: project (parcel) · Retrieved Nov 9, 2026 · From Fairfax's Housing Element Annual Progress Reports. A project can appear in several report years as it moves from entitlement to permit to completion.
Source: County of Marin GIS (MarinMap), Zoning (11 cities and unincorporated Marin) · Geography: zoning district polygon at parcel point · Retrieved Nov 13, 2026
0.72 acres
Assessor's classification for assessment purposes. This is not zoning.
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Nov 13, 2026
Search by parcel number 003-022-20. Assessed value is not market value.
Search by parcel number 003-022-20 (Marin County Tax Collector)
Permits issued in unincorporated Marin in the past 48 months. Each city keeps its own records.
The official flood hazard map for this location. Our reading of it is under What could be built here.
This site does not show owner names.