Bolinas 94924 · Bolinas · APN 193-020-55 · Unincorporated Marin
Zoned C-ARP-5 in Unincorporated Marin and mapped CAL FIRE high fire hazard severity zone (state responsibility area) due diligence; benchmark value $2,193,000 ($1,930,000–$2,456,000).
On-parcel permit history is indexed through Jul 6, 2026, 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)
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 Apr 1, 2024)
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: 1 proposed or in review; 1 demolition.
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.
26 permits within ½ mile since November 2024
$2,193,000
Benchmark range: $1,930,000 – $2,456,000
Electrical / panel (181677): Issued after 9 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,019).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$2,139/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
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 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.
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 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 C-ARP-5 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 11.4 yr (first record Jun 4, 2015), with no completion or new permit record in 11.1 yr. · 1 unit · $200,000 declared valuation
Permit issued and active for 10.4 yr (first record Jul 5, 2016), with no completion or new permit record in 10.1 yr. · 1 unit · $229,000 declared valuation
Permit issued and active for 7.1 yr (first record Oct 15, 2019), with no completion or new permit record in 7 yr. · $75,000 declared valuation
Permit issued and active for 6.1 yr (first record Sep 22, 2020), with no completion or new permit record in 5.1 yr. · 1 unit · $80,000 declared valuation
Permit issued and active for 6.1 yr (first record Sep 22, 2020), with no completion or new permit record in 5.1 yr. · 1 unit · $96,000 declared valuation
In "Applied" for 3.6 yr (since Apr 4, 2023), with no new permit record in 3.6 yr. · 1 unit · $85,000 declared valuation
Nearby accessory dwelling unit (new or conversion) (460 Fern Rd): No longer present in latest agency feed
Record 93841 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby other (460 Fern Rd): No longer present in latest agency feed
Record 94065 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby other (460 Fern Rd (A D U 460 A)): First appeared in published agency feed
Record 182819 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby other (460 Fern Rd): First appeared in published agency feed
Record 182820 · 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 $1,796,016 in September 2025 to $1,954,560 in September 2026.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94924 (not a parcel appraisal)
160 Mesa Rd · $168,372 valuation
Records span May 21, 2025 to Aug 6, 2026 (2 permits).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Electrical / panel permit issued (181677)
Recorded status: Issued
Upgrades To (E) Cell Tower - A T & T · Declared valuation: $65,000 · Contractor: J Perretti Builder
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Electrical / panel permit application filed (94032)
Current status: Applied
Extend Telecommunications Tower And Install Antennas, Radios, Battery Cabinet, Etc... T-Mobile · Declared valuation: $100,000
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Electrical / panel permit application filed (181677)
Current status: Issued
Upgrades To (E) Cell Tower - A T & T · Declared valuation: $65,000 · Contractor: J Perretti Builder
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Annual ZIP 94924 home-value index checkpoint
Changed from $2,016,418 in September 2024 to $1,796,016 in September 2025.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94924 (not a parcel appraisal)
460 Fern Rd · 1 unit · $50,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94924 home-value index checkpoint
Changed from $2,068,626 in September 2023 to $2,016,418 in September 2024.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94924 (not a parcel appraisal)
499 Evergreen Rd (Aka 191 Poplar Rd) · 1 unit · $300,000 valuation
Records span Apr 5, 2023 to Oct 17, 2023 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94924 home-value index checkpoint
Changed from $2,113,031 in September 2022 to $2,068,626 in September 2023.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94924 (not a parcel appraisal)
347 Aspen Rd · 1 unit · $95,680 valuation
Records span Sep 28, 2022 to Sep 28, 2023 (1 permit).
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 Unincorporated Marin development graph →Issued after 9 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,019).
Pending in review for 8 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,019).
Issued after 10 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,019).
Pending in review for 6.4 yr — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,019).
Issued after 3 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,019).
Issued after 21 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,019).
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 1,181 parcels
Small prior baseline
City baseline: 16.4 / 1k
12 in trailing 24m
Includes 6 ADUs
| Builder / contractor | Primary specialty | Here / ½ mi | ½ mi valuation | Citywide 24m trend |
|---|---|---|---|---|
| J Perretti Builder | Electrical / panel | 1 on parcel1 in ½ mi | $65,000 | 0 vs 0 prior |
| Parsons Environment And Infrastructure Grp | Electrical / panel | 1 on parcel1 in ½ mi | $45,000 | 0 vs 0 prior |
| Gmh Builders | Commercial tenant improvement | 1 on parcel1 in ½ mi | $30,000 |
| Permit category | Sample (n) | 25th pct | Median (50th) | 75th pct | 90th pct | Recent 24m median |
|---|---|---|---|---|---|---|
| New single-family home | 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) |
| Addition (adds square footage) |
HUD Small Area Fair Market Rent · ZIP 94924
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 ($21,950/yr) + local voter-approved bond debt ($3,293/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.
−$134,318/yr
Cash needed: $482,900
NOI: -$1,128/yr
P&I: $11,099/mo
For $0/mo net cash flow
At $3,000/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 | $2,760/mo | −$11,538/mo | -28.7% | $18,865/mo | −$11,619/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,000/mo | −$11,193/mo | -27.8% | $17,461/mo | −$11,104/mo |
| Optimistic (cap-limited) | +6% starting rent, 3% vacancy, 4.5%/yr rent growth (capped by AB 1482 ceiling of 8.6%/yr) | $3,180/mo | −$10,995/mo | -27.3% | $17,056/mo | −$10,712/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.
Upgrades To (E) Cell Tower - A T & T
Extend Telecommunications Tower And Install Antennas, Radios, Battery Cabinet, Etc... T-Mobile
T I - (N) Partitions & Doors, Relocate (E) Sink & Drinking Fountain
Cell Site Modifications - Verizon
Remove 3 Anten, Sect. Mts; Install Sect Mts & 4 Anten. 2 Rrus & 2 Dual Anten Mts. T.D. 6-22-20
Replace 9 Antenas, Replace 6 Radios, Add 9 New Radios, New Dc Surge With New Fiber/Power Hybird Line T.D. 12/5/19
Repl Antennas, Radio Units, Diplexers, Triplexers - Verizon Wireless T.D. 11/10/17
Rplc Antennae, Install Rrh Units, Add Dc Surge Suppressor And Hybrid Cable***Expired T.D. 3/25/15
Rplc Furnace***Expired
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.
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 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
0.94 acres
Assessor's classification for assessment purposes. This is not zoning.
100 MESA RD; 88 MESA RD
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Nov 13, 2026
Search by parcel number 193-020-55. Assessed value is not market value.
Search by parcel number 193-020-55 (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.
| Qualtek Wireless | Electrical / panel | 1 on parcel1 in ½ mi | $30,000 | 0 vs 0 prior |
| Quality Telecom Consultants | Electrical / panel | 1 on parcel1 in ½ mi | $25,000 | 0 vs 0 prior |
| Broken Arrow Communications | Electrical / panel | 1 on parcel1 in ½ mi | $10,000 | 0 vs 0 prior |
| Simpson Sheet Metal | HVAC / heat pump | 1 on parcel1 in ½ mi | $6,249 | 0 vs 0 prior |
| Owner Builder Recent nearby: 160 Mesa Rd (Aug 6, 2026) | Demolition | 6 in ½ mi | $1,043,372 | 226 vs 240 prior−6% |
| Vida Building Merged: VIDA BUILDING SYSTEMS · VIDA BUILDING SYSTEMS INC Recent nearby: 440 Birch Rd (Jan 14, 2025) | New garage / accessory structure | 4 in ½ mi | $758,000 | 3 vs 2 prior |
| Wick Brothers Construction Recent nearby: 370 Overlook Dr (Oct 18, 2016) | Addition (adds square footage) | 3 in ½ mi | $886,500 | 1 vs 2 prior |
| 316 |
| 103d |
| 160d |
| 249d |
| 440d |
| 157d(vs 167d prior) |
| Remodel / interior alteration | 1,054 | 36d | 83d | 148d | 266d | 112d(vs 77d prior) |
| Commercial tenant improvementOn this parcel | 81 | 99d | 148d | 233d | 443d | 152d(vs 150d prior) |
| HVAC / heat pumpOn this parcel | 2,946 | 0d | 0d | 0d | 0d | 0d |
| Electrical / panelOn this parcel | 3,019 | 0d | 0d | 0d | 2d | 0d |
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.