Greenbrae 94904 · Kentfield · APN 070-071-15 · Unincorporated Marin
Since October 2024 within ½ mile: 10 permitted, 1 proposed or in review; 1 commercial or mixed-use project.
12 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.
397 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.
$2,898,000
Benchmark range: $2,550,000 – $3,246,000
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: permits located by parcel, ½ mile radius · Retrieved Oct 30, 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 Oct 30, 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 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 13 yr (first record Oct 28, 2013), with no completion or new permit record in 12.5 yr. · 1 unit · $380,508 declared valuation
Permit issued and active for 12.6 yr (first record Mar 6, 2014), with no completion or new permit record in 12.4 yr. · $2,400,000 declared valuation
Permit issued and active for 12.6 yr (first record Mar 6, 2014), with no completion or new permit record in 12.4 yr. · 1 unit · $1,030,000 declared valuation
Permit issued and active for 11.9 yr (first record Dec 8, 2014), with no completion or new permit record in 11.6 yr. · $1,000 declared valuation
Permit issued and active for 11.7 yr (first record Feb 17, 2015), with no completion or new permit record in 11.4 yr. · 1 unit · $600,000 declared valuation
Permit issued and active for 10.7 yr (first record Mar 3, 2016), with no completion or new permit record in 10.6 yr. · $2,500 declared valuation
Nearby windows / doors / siding (160 Tioga Ln): First appeared in published agency feed
Record B48932 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby other (110 Corte Anita): First appeared in published agency feed
Record B48939 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby other (2 Upper Toyon Dr): First appeared in published agency feed
Record B48928 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby commercial tenant improvement (250 Bon Air Rd): First appeared in published agency feed
Record 94609 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby roof replacement (2 Upper Toyon Dr): First appeared in published agency feed
Record B48880 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Plumbing / water heater / sewer permit issued (182752)
Recorded status: Issued
Remove (E) Concrete Deck, (N) Deck, (N) Pavers, (N) Elec And Gas Utilities · Contractor: Kelly Domer Partners Inc. Dba Pacific Constr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Latest published Zillow Home Value Index (ZHVI) update
Changed from $2,157,052 in September 2025 to $2,308,409 in September 2026.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94904 (not a parcel appraisal)
24 Tamal Vista Ln A D U 24 A · 1 unit · $75,000 valuation
Records span Mar 23, 2026 to Jun 9, 2026 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Accessory dwelling unit (new or conversion) permit issued (181751)
Recorded status: Issued
New J A D U At Lower Level; New Attic Space · Declared valuation: $150,000 · 1 housing unit · Contractor: Kelly Domer Partners Inc. Dba Pacific Constr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Plumbing / water heater / sewer permit application filed (182752)
Current status: Issued
Remove (E) Concrete Deck, (N) Deck, (N) Pavers, (N) Elec And Gas Utilities · Contractor: Kelly Domer Partners Inc. Dba Pacific Constr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
85 Corte Dorado · 1 unit · $205,000 valuation
Records span Jun 23, 2025 to Oct 9, 2025 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
162 Wolfe Grade · 1 unit · $11,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94904 home-value index checkpoint
Changed from $2,256,428 in September 2024 to $2,157,052 in September 2025.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94904 (not a parcel appraisal)
33 Bretano Way · 1 unit · $750,000 valuation
Records span Apr 11, 2025 to Sep 24, 2025 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
675 Sir Francis Drake Blvd · $30,000 valuation
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 →Active in "Applied" for 2.8 yr (first record Jan 17, 2024) with no new permit activity recorded in 2.8 yr. High-impact scale (1 housing unit, $750,000 declared valuation across 1 permit).
Active in "Issued" for 12.6 yr (first record Mar 6, 2014) with no new permit activity recorded in 12.4 yr. High-impact scale ($2,400,000 declared valuation across 2 permits).
Active in "Issued" for 12.6 yr (first record Mar 6, 2014) with no new permit activity recorded in 12.4 yr. High-impact scale (1 housing unit, $1,030,000 declared valuation across 1 permit).
Active in "Issued" for 19 mo (first record Apr 11, 2025) with no new permit activity recorded in 13 mo. High-impact scale (1 housing unit, $750,000 declared valuation across 1 permit).
Active in "Issued" for 8.5 yr (first record Apr 23, 2018) with no new permit activity recorded in 8.1 yr. High-impact scale (1 housing unit, $1,020,000 declared valuation across 2 permits).
Active in "Applied" for 4.8 yr (first record Jan 14, 2022) with no new permit activity recorded in 4.8 yr.
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 2,520 parcels
−34.9% YoY
City baseline: 16.5 / 1k
104 in trailing 24m
Includes 30 ADUs
HUD Small Area Fair Market Rent · ZIP 94904
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 ($29,000/yr) + local voter-approved bond debt ($4,350/yr) + fixed direct levies/Mello-Roos ($450/yr).
Mapped hazard zone insurance context on this parcel:
−$182,650/yr
Cash needed: $638,000
NOI: -$6,682/yr
P&I: $14,664/mo
For $0/mo net cash flow
At $3,275/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 | $3,013/mo | −$15,597/mo | -29.3% | $24,785/mo | −$15,722/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,275/mo | −$15,221/mo | -28.6% | $22,940/mo | −$15,160/mo |
| Optimistic (cap-limited) | +6% starting rent, 3% vacancy, 4.5%/yr rent growth (capped by AB 1482 ceiling of 8.6%/yr) | $3,472/mo | −$15,004/mo | -28.2% | $22,407/mo | −$14,732/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 unitsJul 11, 2025 – Jun 5, 2026
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
Remove (E) Concrete Deck, (N) Deck, (N) Pavers, (N) Elec And Gas Utilities
New J A D U At Lower Level; New Attic Space
Whole House Remodel Incl Garage; Generator
Change out water heater to a hybrid electric water heater — Replace Plumbing Fixtures(s)
Adding fan coil heat pump plus venting — Mechanical Appliance
Remove (E) Electrical And Upgrade To High Efficacy Fixtures, (N) 200amp Meter; Install Tie Beam
Remove and replace windows with code (including WUI safety glazing) compliant window (max. U-factor and SGHC-factor) all to match existing sizes throughout. Patch and repair all existing dry rot with WUI-compliant siding and framing as necessary. — Siding Replacement, Non-structural Door/Window Replacement
Voluntary Seismic Upgrades; Storage Rm Addition Under (E) House
Remodel: (N) Laundry Area At Upper & (N) Pantry/Pwder At Lower Level T.D. 1/4/24
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel (APN) · Retrieved Oct 30, 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 30, 2026
0.88 acres
Assessor's classification for assessment purposes. This is not zoning.
435 LOS CERROS DR
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Oct 30, 2026
Search by parcel number 070-071-15. Assessed value is not market value.
Search by parcel number 070-071-15 (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.