· Black Point · APN 157-123-13 · Unincorporated Marin
Zoned A2 in Unincorporated Marin and mapped FEMA AE flood / CAL FIRE high fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,715,000 ($1,458,000–$1,972,000).
On-parcel permit history is indexed through May 18, 2017, 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)
Zone AE: 1% annual chance flood (Special Flood Hazard Area) overlaps this parcel. Expect mandatory flood insurance for federally backed loans and floodplain elevation/mitigation rules for new units or SB 9 applications.
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.
Automated synthesis of indexed municipal, county, state, and federal public records — informational context only, not a formal appraisal, survey, or legal/tax determination.
73 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.
$1,715,000
Benchmark range: $1,458,000 – $1,972,000
Source: CAL FIRE FHSZ (map Apr 1, 2024)
Closest lead: Accessory dwelling unit at 315 Laurel Ave (0.12 mi NE, 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)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,681/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: permits located by parcel, ½ mile radius · Retrieved Nov 13, 2026
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.
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 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 A2 as agricultural, 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 8.2 yr (first record Sep 18, 2018), with no completion or new permit record in 7.1 yr. · 1 unit · $600,000 declared valuation
Permit issued and active for 5.5 yr (first record May 5, 2021), with no completion or new permit record in 5.3 yr. · 1 unit · $45,000 declared valuation
Permit issued and active for 3.5 yr (first record May 30, 2023), with no completion or new permit record in 3.5 yr. · 1 unit · $44,888 declared valuation
In "Applied" for 2.8 yr (since Feb 7, 2024), with no new permit record in 2.8 yr. · 1 unit · $35,000 declared valuation
In "Applied" for 2.5 yr (since Apr 26, 2024), with no new permit record in 2.5 yr. · 1 unit · $75,000 declared valuation
In "Applied" for 2.3 yr (since Jul 30, 2024), with no new permit record in 2.1 yr. · 1 unit · $50,000 declared valuation
5 Bay Canyon Rd · 1 unit · $50,000 valuation
Records span Jul 30, 2024 to Oct 4, 2024 (2 permits).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
363 Grandview Ave · 1 unit · $75,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
315 Laurel Ave · 1 unit · $35,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
302 Grandview Ave · 1 unit · $44,888 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
290 Grandview Ave · 1 unit · $200,000 valuation
Records span May 4, 2022 to Sep 9, 2022 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
388 Laurel Ave (Was 390) · 1 unit · $45,000 valuation
Records span May 5, 2021 to Jul 9, 2021 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
390 Laurel Ave · 1 unit · $465,000 valuation
Records span Dec 15, 2016 to May 11, 2021 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
342 Laurel Ave · 1 unit · $600,000 valuation
Records span Sep 18, 2018 to Oct 9, 2019 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
1 housing unit completed (155488)
Reported in 2018 Housing Element Annual Progress Report
SFD · Owner
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: parcel
New single-family home permit issued (155488)
Recorded status: Issued
S F D; Deck T.D. 2/24/17 · Declared valuation: $100,000 · 1 housing unit · Contractor: Owner
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
New single-family home permit application filed (155488)
Current status: Issued
S F D; Deck T.D. 2/24/17 · Declared valuation: $100,000 · Contractor: Owner
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
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 →In "Applied" for 2.8 yr (since Feb 7, 2024), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
In "Applied" for 2.5 yr (since Apr 26, 2024), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
In "Applied" for 2.3 yr (since Jul 30, 2024), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
Active in "Issued" for 8.2 yr (first record Sep 18, 2018) with no new permit activity recorded in 7.1 yr.
Active in "Issued" for 3.5 yr (first record May 30, 2023) with no new permit activity recorded in 3.5 yr.
Active in "Issued" for 5.5 yr (first record May 5, 2021) with no new permit activity recorded in 5.3 yr.
| Builder / contractor | Primary specialty | Here / ½ mi | ½ mi valuation | Citywide 24m trend |
|---|---|---|---|---|
| Owner | Remodel / interior alteration | 1 on parcel4 in ½ mi | $307,900 | 25 vs 15 prior+67% |
| Owner Builder Recent nearby: 315 Laurel Ave (Apr 4, 2025) | New garage / accessory structure | 6 in ½ mi | $1,275,875 | 226 vs 240 prior−6% |
| William Clark Smith Construction Recent nearby: 66 Manzanita Ave (Oct 21, 2021) |
| Permit category | Sample (n) | 25th pct | Median (50th) | 75th pct | 90th pct | Recent 24m median |
|---|---|---|---|---|---|---|
| New single-family homeOn this parcel | 121 | 166d | 253d | 456d | 686d | 211d(vs 273d prior) |
| New multifamily / condos / mixed-use | 21 | 272d | 292d | 293d | 313d | 293d(vs 197d prior) |
| Accessory dwelling unit (new or conversion) | 298 | 120d | 204d | 331d | 549d | 214d(vs 181d prior) |
HUD Metro Fair Market Rent · San Francisco, CA HUD Metro FMR Area
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 ($17,150/yr) + local voter-approved bond debt ($2,573/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.
−$94,099/yr
Cash needed: $377,300
NOI: $9,964/yr
P&I: $8,672/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 | −$8,255/mo | -26.3% | $14,835/mo | −$8,274/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,600/mo | −$7,842/mo | -24.9% | $13,731/mo | −$7,656/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 | −$7,604/mo | -24.2% | $13,412/mo | −$7,186/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.
Finaled / completed1 unitsDec 28, 2016 – May 15, 2018
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
S F D; Deck T.D. 2/24/17
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 |
|---|---|---|---|---|---|---|
| 2018 | —(155488) | SFD · Owner | — | — | 1 (May 15, 2018) | — |
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: project (parcel) · Retrieved Nov 9, 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 Nov 13, 2026
1.31 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 157-123-13. Assessed value is not market value.
Search by parcel number 157-123-13 (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.
| Remodel / interior alteration |
| 2 in ½ mi |
| $62,000 |
| 1 vs 0 prior |
| Bryan Hodes Gen Contractor Recent nearby: 390 Laurel Ave (Sep 16, 2019) | New single-family home | 1 in ½ mi | $465,000 | 0 vs 0 prior |
| Tomrose Construction Recent nearby: 427 Grandview Ave (Sep 6, 2018) | Addition (adds square footage) | 1 in ½ mi | $170,000 | 0 vs 2 prior |
| Addition (adds square footage) | 316 | 103d | 160d | 249d | 440d | 157d(vs 167d prior) |
| Remodel / interior alteration | 1,054 | 36d | 83d | 148d | 266d | 112d(vs 77d prior) |
| Commercial tenant improvement | 81 | 99d | 148d | 233d | 443d | 152d(vs 150d prior) |
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Computed from issued permits with recorded application and issuance dates over the trailing 60 months. Categories with fewer than 20 permits are excluded.