San Rafael 94901 · California Park · APN 018-093-03 · Unincorporated Marin
Zoned R1-B2 in Unincorporated Marin with likely ADU & SB 9 infill eligibility and mapped CAL FIRE moderate fire hazard severity zone (local responsibility area) due diligence; benchmark value $1,539,000 ($1,354,000–$1,724,000).
Zoned R1-B2 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 18,252 sq ft lot. Local precedent is active with 4 ADU permits within ¼ mile over the last 36 months.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
Public building records show issued construction/renovation work on this parcel (8 total permits, latest Nov 27, 2024).
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)
Automated synthesis of indexed municipal, county, state, and federal public records — informational context only, not a formal appraisal, survey, or legal/tax determination.
$1,539,000
Benchmark range: $1,354,000 – $1,724,000
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)
Closest lead: 79 new homes at 0 Auburn St & Woodland Ave (0.22 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 (~$1,512/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
Since November 2024 within ½ mile: 1 homes completed, 4 permitted, 81 proposed or in review (16 of them deed-restricted affordable).
9 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.
64 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.
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 R1-B2 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 10.6 yr (first record Apr 5, 2016), with no completion or new permit record in 10.6 yr. · $7,500 declared valuation
In "Entitled" for 8.7 yr (since Mar 16, 2018), with no new permit record in 8.7 yr. · 1 unit
In "Entitled" for 8.2 yr (since Sep 12, 2018), with no new permit record in 8.2 yr. · 1 unit
Permit issued and active for 8.7 yr (first record Mar 7, 2018), with no completion or new permit record in 7.8 yr. · 1 unit · $130,000 declared valuation
In "Entitled" for 7.2 yr (since Sep 9, 2019), with no new permit record in 7.2 yr. · 1 unit
In "Entitled" for 6.3 yr (since Jul 14, 2020), with no new permit record in 6.3 yr. · 1 unit
Nearby other (132 Tiburon Blvd): First appeared in published agency feed
Record 94622 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby roof replacement (108 Orange St): First appeared in published agency feed
Record B49001 · 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 $1,376,137 in September 2025 to $1,394,155 in September 2026.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94901 (not a parcel appraisal)
202 Auburn St ( A D U 202 A) · 1 unit · $160,000 valuation
Records span Oct 25, 2024 to Sep 18, 2026 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
221 Tiburon Blvd · 1 unit · $75,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
12 Woodland Ave · $575,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
15 Bret Harte Rd · 1 unit · $2,200 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
14 Gilbert St · 1 unit · $400,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
1 unit
Records span Jul 16, 2024 to Nov 24, 2025 (0 permits).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94901 home-value index checkpoint
Changed from $1,415,574 in September 2024 to $1,376,137 in September 2025.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94901 (not a parcel appraisal)
0 Auburn St & Woodland Ave · 79 units · 16 affordable
Records span Dec 18, 2024 to Sep 11, 2025 (16 permits).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
134 Orange St (Adu 137a) · 1 unit · $20,000 valuation
Records span Aug 25, 2023 to Feb 12, 2025 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Remodel / interior alteration permit issued (178221)
Recorded status: Issued
Bathrm Remodel · Declared valuation: $16,000 · Contractor: Owner/Builder
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
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 →In "Applied" for 23 mo (since Dec 18, 2024), exceeding the 292d median and 313d 90th percentile for new multifamily / condos / mixed-use permits in Unincorporated Marin (n=21). High-impact scale (79 housing units, 16 deed-restricted affordable across 16 permits).
In "Applied" for 4.2 yr (since Sep 14, 2022), exceeding the 55d median and 261d 90th percentile for demolition permits in Unincorporated Marin (n=130).
In "Applied" for 5.2 yr (since Sep 8, 2021), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
In "Entitled" for 8.2 yr (since Sep 12, 2018), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
In "Entitled" for 6.2 yr (since Sep 11, 2020), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
In "Entitled" for 7.2 yr (since Sep 9, 2019), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
| Builder / contractor | Primary specialty | Here / ½ mi | ½ mi valuation | Citywide 24m trend |
|---|---|---|---|---|
| Owner Builder | Remodel / interior alteration | 1 on parcel14 in ½ mi | $708,000 | 226 vs 240 prior−6% |
| Tesla Energy | Roof replacement | 2 on parcel2 in ½ mi | $30,360 | 0 vs 0 prior |
| Tinka Construction | Remodel / interior alteration | 1 on parcel1 in ½ mi | $100,000 |
| 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 94901
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 ($15,400/yr) + local voter-approved bond debt ($2,310/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.
−$85,880/yr
Cash needed: $338,800
NOI: $7,565/yr
P&I: $7,787/mo
For $0/mo net cash flow
At $3,125/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 | $2,875/mo | −$7,516/mo | -26.6% | $13,366/mo | −$7,540/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,125/mo | −$7,157/mo | -25.3% | $12,371/mo | −$7,003/mo |
| Optimistic (cap-limited) | +6% starting rent, 3% vacancy, 4.5%/yr rent growth (capped by AB 1482 ceiling of 8.6%/yr) | $3,313/mo | −$6,950/mo | -24.6% | $12,084/mo | −$6,595/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 unitsJun 21, 2021 – Jan 21, 2022
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
Bathrm Remodel
EV charger 240V-50A installation in the garage — EV Charging Station; With Electronic Inspection
Replace old gas furnace with new forced air, high efficiency (96%) condensing gas furnace. — Replace Mechanical Appliance
Interior Remodel; Legalization Of A D U (Lower Level)
Reroof
4.09kw Rooftop Photovoltaic & Energy Storage System
Pv 4.35 Kw Express***Expired
Water Heater Replacement
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 |
|---|---|---|---|---|---|---|
| 2022 | —(169675) | ADU · Renter | — | — | 1 (Jan 21, 2022) | — |
| 2021 | —(169675) | ADU · Renter | — | 1 (Oct 19, 2021) | — | — |
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
0.42 acres
Assessor's classification for assessment purposes. This is not zoning.
111 ORANGE ST; 113 ORANGE ST
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Nov 13, 2026
Search by parcel number 018-093-03. Assessed value is not market value.
Search by parcel number 018-093-03 (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.
| 0 vs 0 prior |
| Canopy Energy | Solar / battery storage | 1 on parcel1 in ½ mi | $25,000 | 0 vs 0 prior |
| Baja Mechanical | HVAC / heat pump | 1 on parcel1 in ½ mi | $4,800 | 0 vs 0 prior |
| Evcharger Expert | EV charger | 1 on parcel1 in ½ mi | $3,800 | 0 vs 0 prior |
| Dickson | Plumbing / water heater / sewer | 1 on parcel1 in ½ mi | $1,700 | 0 vs 0 prior |
| Owner Recent nearby: 40 Bret Harte Rd (May 19, 2016) | Remodel / interior alteration | 5 in ½ mi | $230,000 | 25 vs 15 prior+67% |
| Glenns Home And Commercial Recent nearby: 155 Auburn St (Oct 6, 2016) | Remodel / interior alteration | 2 in ½ mi | $10,600 | 0 vs 0 prior |
| Resolute Design And Construction Recent nearby: 130 Altena St (Feb 12, 2025) | Addition (adds square footage) | 1 in ½ mi | $280,000 | 0 vs 0 prior |
| 316 |
| 103d |
| 160d |
| 249d |
| 440d |
| 157d(vs 167d prior) |
| Remodel / interior alterationOn this parcel | 1,054 | 36d | 83d | 148d | 266d | 112d(vs 77d prior) |
| Commercial tenant improvement | 81 | 99d | 148d | 233d | 443d | 152d(vs 150d prior) |
| Solar / battery storageOn this parcel | 2,977 | 0d | 0d | 0d | 2d | 0d |
| EV chargerOn this parcel | 482 | 0d | 0d | 0d | 0d | 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.