Tiburon 94920 · APN 059-201-52 · Tiburon
Zoned R-2 in Tiburon with likely ministerial ADU eligibility and mapped CAL FIRE moderate fire hazard severity zone (local responsibility area) due diligence; benchmark value $3,457,000 ($2,938,000–$3,976,000).
Zone R-2 allows residential use qualifying for ministerial ADU review under state law (2 ADU permits permitted within ¼ mile in 36 months).
Source: Tiburon zoning · CA Gov. Code 66314
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: 8 permitted, 1 proposed or in review.
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.
28 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.
$3,457,000
Benchmark range: $2,938,000 – $3,976,000
New home: Active in "Issued" for 2 yr (first record Oct 28, 2024) with no new permit activity recorded in 2 yr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
Closest lead: Accessory dwelling unit at 2398 Vista Del Mar Ln (was 2401 Paradise Dr) (170 ft N, 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 14, 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.
We don't have building permits for Tiburon, 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 Tiburon's planning department before relying on it.
Sources: County of Marin GIS (MarinMap), Zoning (11 cities and unincorporated Marin) (retrieved Nov 14, 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 R-2 as two-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 2 yr (first record Oct 28, 2024), with no completion or new permit record in 2 yr. · 1 unit
Permit issued and active for 8.1 yr (first record Oct 18, 2018), with no completion or new permit record in 8.1 yr. · 1 unit
Permit issued and active for 8.2 yr (first record Sep 18, 2018), with no completion or new permit record in 7.5 yr. · 1 unit · $46,000 declared valuation
Permit issued and active for 7.3 yr (first record Jul 15, 2019), with no completion or new permit record in 7.3 yr. · 1 unit
Permit issued and active for 6 yr (first record Nov 16, 2020), with no completion or new permit record in 5.6 yr. · 1 unit · $214,000 declared valuation
Permit issued and active for 5.5 yr (first record Apr 29, 2021), with no completion or new permit record in 5.5 yr. · 1 unit
Latest published Zillow Home Value Index (ZHVI) update
Changed from $3,090,631 in September 2025 to $3,404,730 in September 2026.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94920 (not a parcel appraisal)
Building permit reported to State HCD for 1 housing unit (ADU)
Reported in 2025 Housing Element Annual Progress Report
ADU · 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)
Planning entitlement approved for 1 housing unit (ADU)
Reported in 2025 Housing Element Annual Progress Report
ADU · Owner
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: parcel
Building permit reported to State HCD for 1 housing unit (New SFD)
Reported in 2025 Housing Element Annual Progress Report
SFD · Owner
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: parcel
Annual ZIP 94920 home-value index checkpoint
Changed from $3,209,701 in September 2024 to $3,090,631 in September 2025.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94920 (not a parcel appraisal)
1 unit
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)
1 unit
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)
1 unit
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)
1 unit
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 (New SFD)
Reported in 2025 Housing Element Annual Progress Report
SFD · Owner
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: parcel
Planning entitlement approved for 1 housing unit (BR23-136)
Reported in 2024 Housing Element Annual Progress Report
SFD · Owner
Source: California HCD, Housing Element Annual Progress Report — Table A2 · 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 Tiburon development graph →Active in "Issued" for 2 yr (first record Oct 28, 2024) with no new permit activity recorded in 2 yr.
Active in "Issued" for 6 yr (first record Nov 16, 2020) with no new permit activity recorded in 5.6 yr.
Active in "Issued" for 8.2 yr (first record Sep 18, 2018) with no new permit activity recorded in 7.5 yr.
Active in "Issued" for 22 mo (first record Jan 14, 2025) with no new permit activity recorded in 22 mo.
Active in "Issued" for 3.4 yr (first record Jul 6, 2023) with no new permit activity recorded in 3.4 yr.
Active in "Entitled" for 20 mo (first record Mar 4, 2025) with no new permit activity recorded in 20 mo.
HUD Small Area Fair Market Rent · ZIP 94920
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 ($34,550/yr) + local voter-approved bond debt ($5,183/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.
−$215,046/yr
Cash needed: $760,100
NOI: -$5,402/yr
P&I: $17,470/mo
For $0/mo net cash flow
At $4,100/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 | $3,772/mo | −$18,392/mo | -29.0% | $29,444/mo | −$18,527/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $4,100/mo | −$17,921/mo | -28.3% | $27,253/mo | −$17,824/mo |
| Optimistic (cap-limited) | +6% starting rent, 3% vacancy, 4.5%/yr rent growth (capped by AB 1482 ceiling of 8.6%/yr) | $4,346/mo | −$17,650/mo | -27.9% | $26,620/mo | −$17,289/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.
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 14, 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 |
|---|---|---|---|---|---|---|
| 2025 | ADU(ADU23-009) | ADU · Owner | 1 (Nov 26, 2025) | 1 (Dec 8, 2025) | — | — |
| 2025 | New SFD(BR23-136) | SFD · Owner | 1 (Oct 28, 2024) | 1 (Nov 24, 2025) | — | — |
| 2024 | —(BR23-136) | SFD · Owner | 1 (Oct 28, 2024) | — | — | — |
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: project (parcel) · Retrieved Nov 9, 2026 · From Tiburon'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 14, 2026
0.17 acres
Assessor's classification for assessment purposes. This is not zoning.
2359 PARADISE DR
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Nov 14, 2026
Search by parcel number 059-201-52. Assessed value is not market value.
Search by parcel number 059-201-52 (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.