Stinson Beach 94970 · Stinson Beach · APN 195-310-07 · Unincorporated Marin
Since October 2024 within ½ mile: 3 permitted, 1 proposed or in review.
4 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.
49 permits within ½ mile since October 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.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: permits located by parcel, ½ mile radius · Retrieved Oct 31, 2026
$3,196,000
Benchmark range: $2,812,000 – $3,580,000
Public-records benchmark estimate combining Zillow Home Value Index (Data provided by Zillow), Census ACS 5-year estimates, parcel land-use/lot characteristics, and issued building permits. Not an official appraisal.
No ADU or new-home permits recorded within ¼ mile in this window.
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 Unincorporated Marin's planning department before relying on it.
Sources: County of Marin GIS (MarinMap), Zoning (11 cities and unincorporated Marin) (retrieved Oct 31, 2026) · CAL FIRE Office of the State Fire Marshal, Fire Hazard Severity Zones in the State Responsibility Area (effective 2024-04-01) (retrieved Oct 26, 2026) · CAL FIRE Office of the State Fire Marshal, Fire Hazard Severity Zones in the Local Responsibility Area (map dated 2025-03-24) (retrieved Oct 26, 2026) · FEMA, National Flood Hazard Layer — flood hazard zones (retrieved Oct 26, 2026) · FEMA, National Flood Hazard Layer — FIRM panels (retrieved Oct 26, 2026) · California Geological Survey, Alquist-Priolo Earthquake Fault Zones (retrieved Oct 26, 2026) · Zoning classes: our classification of C-RSPS-2.9 as single-family residential, checked against the zone description on Oct 24, 2026
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 8 yr (first record Nov 8, 2018), with no completion or new permit record in 7.8 yr. · 1 unit · $1,200,000 declared valuation
Permit issued and active for 12.8 yr (first record Jan 16, 2014), with no completion or new permit record in 12.3 yr. · 1 unit · $1,452,000 declared valuation
Permit issued and active for 11.6 yr (first record Mar 10, 2015), with no completion or new permit record in 11.3 yr. · $681,143 declared valuation
In "Applied" for 11 yr (since Oct 22, 2015), with no new permit record in 11 yr. · $20,000 declared valuation
Permit issued and active for 9.5 yr (first record Apr 19, 2017), with no completion or new permit record in 9.5 yr. · 1 unit · $450,000 declared valuation
Permit issued and active for 10.6 yr (first record Mar 8, 2016), with no completion or new permit record in 9.4 yr. · 1 unit · $550,000 declared valuation
Nearby other (279 Seadrift Rd): First appeared in published agency feed
Record B48962 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby roof replacement (73 Brighton Ave): First appeared in published agency feed
Record B48881 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Latest published Zillow Home Value Index (ZHVI) update
Changed from $3,185,829 in September 2025 to $3,577,374 in September 2026.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94970 (not a parcel appraisal)
66 Altura Ave · 1 unit · $2,900,000 valuation
Records span Dec 18, 2025 to Jan 28, 2026 (2 permits).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
97 Brighton Ave (Adu 97a) · 1 unit
Records span Sep 11, 2024 to Oct 7, 2025 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94970 home-value index checkpoint
Changed from $3,436,866 in September 2024 to $3,185,829 in September 2025.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94970 (not a parcel appraisal)
46 Crescente Ave · 1 unit · $30,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
310 Seadrift Rd · 1 unit · $275,000 valuation
Records span Aug 12, 2021 to Oct 7, 2024 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94970 home-value index checkpoint
Changed from $3,189,831 in September 2023 to $3,436,866 in September 2024.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94970 (not a parcel appraisal)
52 Crescente Ave · 1 unit · $2,750,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
321 Seadrift Rd · 1 unit · $960,000 valuation
Records span Mar 13, 2023 to Jan 31, 2024 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
72 Wharf Rd · $1,980,000 valuation
Records span May 13, 2021 to Oct 2, 2023 (2 permits).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94970 home-value index checkpoint
Changed from $3,315,696 in September 2022 to $3,189,831 in September 2023.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94970 (not a parcel appraisal)
283 Seadrift Rd · 1 unit · $1,000,000 valuation
Records span Jan 28, 2022 to May 30, 2023 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94970 home-value index checkpoint
Changed from $3,112,685 in September 2021 to $3,315,696 in September 2022.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94970 (not a parcel appraisal)
Cross-referenced intelligence from our historical development graph—connecting parcels, permits, entity-resolved builders, empirical review-time distributions, and neighborhood renovation trends.
Explore full Unincorporated Marin development graph →Active in "Issued" for 8 yr (first record Nov 8, 2018) with no new permit activity recorded in 7.8 yr. High-impact scale (1 housing unit, $1,200,000 declared valuation across 1 permit).
Active in "Issued" for 3.6 yr (first record Mar 13, 2023) with no new permit activity recorded in 2.7 yr. High-impact scale (1 housing unit, $960,000 declared valuation across 1 permit).
Active in "Issued" for 9.4 yr (first record Jun 12, 2017) with no new permit activity recorded in 9 yr. High-impact scale (1 housing unit, $900,000 declared valuation across 1 permit).
Active in "Applied" for 2.3 yr (first record Jul 11, 2024) with no new permit activity recorded in 2.3 yr. High-impact scale (1 housing unit, $2,750,000 declared valuation across 1 permit).
Active in "Issued" for 5.5 yr (first record May 13, 2021) with no new permit activity recorded in 3.1 yr. High-impact scale ($1,980,000 declared valuation across 2 permits).
Active in "Issued" for 12.8 yr (first record Jan 16, 2014) with no new permit activity recorded in 12.3 yr. High-impact scale (1 housing unit, $1,452,000 declared valuation across 1 permit).
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 891 parcels
Small prior baseline
City baseline: 16.5 / 1k
9 in trailing 24m
Includes 2 ADUs
HUD Small Area Fair Market Rent · ZIP 94970
HUD FY 2026 · 40th-percentile gross rentCensus ACS 5-year median gross rent (all bedroom counts combined):
Area 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 ($31,950/yr) + local voter-approved bond debt ($4,793/yr) + fixed direct levies/Mello-Roos ($450/yr).
Mapped hazard zone insurance context on this parcel:
−$206,264/yr
Cash needed: $702,900
NOI: -$12,396/yr
P&I: $16,156/mo
For $0/mo net cash flow
At $3,025/mo 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 | $2,783/mo | −$17,536/mo | -29.9% | $27,261/mo | −$17,695/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,025/mo | −$17,189/mo | -29.3% | $25,233/mo | −$17,176/mo |
| Optimistic (cap-limited) | +6% starting rent, 3% vacancy, 4.5%/yr rent growth (capped by AB 1482 ceiling of 8.6%/yr) | $3,207/mo | −$16,989/mo | -29.0% | $24,647/mo | −$16,781/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 unitsNov 8, 2018 – Jan 10, 2019
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
Install new condensing boiler in existing location. — Replace Mechanical Appliance
New Inground Spa
Repl House; New Deck
Firepit. Rel To Track #82785
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel (APN) · Retrieved Oct 31, 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.
No housing activity reported to the State for this parcel (2018–2025 reports).
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: project (parcel) · Retrieved Oct 26, 2026 · From Unincorporated Marin'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 Oct 31, 2026
0.36 acres
Assessor's classification for assessment purposes. This is not zoning.
342 SEADRIFT RD
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Oct 31, 2026
Search by parcel number 195-310-07. Assessed value is not market value.
Search by parcel number 195-310-07 (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.