Mill Valley 94941 · Strawberry · APN 043-121-06 · Unincorporated Marin
Since October 2024 within ½ mile: 5 permitted, 1 proposed or in review; 2 demolitions.
8 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.
145 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.
$2,520,000
Benchmark range: $2,218,000 – $2,822,000
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 RSP-5-BFC 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 12.8 yr (first record Dec 30, 2013), with no completion or new permit record in 12.5 yr. · 1 unit · $700,000 declared valuation
Permit issued and active for 12.9 yr (first record Dec 11, 2013), with no completion or new permit record in 12.2 yr. · 1 unit · $600,000 declared valuation
Permit issued and active for 12 yr (first record Nov 5, 2014), with no completion or new permit record in 11.9 yr. · $10,000 declared valuation
In "Applied" for 11.5 yr (since May 6, 2015), with no new permit record in 11.5 yr. · 1 unit · $425,000 declared valuation
Permit issued and active for 11.6 yr (first record Mar 19, 2015), with no completion or new permit record in 10.9 yr. · 1 unit · $170,000 declared valuation
Permit issued and active for 9.5 yr (first record Apr 13, 2017), with no completion or new permit record in 9.5 yr. · $55,000 declared valuation
Nearby plumbing / water heater / sewer (68 Seminary Cove Dr): First appeared in published agency feed
Record B48955 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby roof replacement (24 Gate 6 1/2): First appeared in published agency feed
Record B48906 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby windows / doors / siding (145 Great Circle Dr): First appeared in published agency feed
Record B48901 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
427 E Strawberry Dr · 1 unit · $225,000 valuation
Records span Jun 18, 2026 to Oct 20, 2026 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Latest published Zillow Home Value Index (ZHVI) update
Changed from $1,980,059 in September 2025 to $2,181,389 in September 2026.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94941 (not a parcel appraisal)
431 E Strawberry Dr · 1 unit · $400,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
201 Seminary Dr · $125,000 valuation
Records span Aug 22, 2025 to Jan 28, 2026 (2 permits).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
20 Issaquah Dock · 1 unit · $950,000 valuation
Records span Aug 4, 2025 to Dec 16, 2025 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
4 Heron Dr · 1 unit · $225,000 valuation
Records span Sep 2, 2025 to Dec 3, 2025 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
2 Nina Ct · 1 unit · $56,460 valuation
Records span Dec 9, 2022 to Oct 24, 2025 (2 permits).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94941 home-value index checkpoint
Changed from $2,042,452 in September 2024 to $1,980,059 in September 2025.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94941 (not a parcel appraisal)
171 Great Cir Dr · $8,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Building permit reported to State HCD for 1 housing unit (179517)
Reported in 2025 Housing Element Annual Progress Report
ADU · Renter
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: parcel
Remodel / interior alteration permit issued (179517)
Recorded status: Issued
New J A D U In Crawl Space; Conv Storage/Mech To Elevator Room; Furnace; W/H · Declared valuation: $205,325 · Contractor: G Family Inc
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Remodel / interior alteration permit application filed (179517)
Current status: Issued
New J A D U In Crawl Space; Conv Storage/Mech To Elevator Room; Furnace; W/H · Declared valuation: $205,325 · Contractor: G Family Inc
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 →Active in "Issued" for 20 mo (first record Feb 18, 2025) with no new permit activity recorded in 16 mo.
Active in "Issued" for 15 mo (first record Aug 4, 2025) with no new permit activity recorded in 10 mo. High-impact scale (1 housing unit, $950,000 declared valuation across 1 permit).
Active in "Issued" for 6.6 yr (first record Apr 1, 2020) with no new permit activity recorded in 6.5 yr.
Active in "Entitled" for 5.1 yr (first record Sep 30, 2021) with no new permit activity recorded in 5.1 yr.
Active in "Applied" for 14 mo (first record Aug 14, 2025) with no new permit activity recorded in 14 mo.
Active in "Issued" for 9.5 yr (first record Apr 13, 2017) with no new permit activity recorded in 9.5 yr.
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 1,512 parcels
+33.3% YoY
City baseline: 16.5 / 1k
42 in trailing 24m
Includes 8 ADUs
HUD Small Area Fair Market Rent · ZIP 94941
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 ($25,200/yr) + local voter-approved bond debt ($3,780/yr) + fixed direct levies/Mello-Roos ($450/yr).
Mapped hazard zone insurance context on this parcel:
−$148,952/yr
Cash needed: $554,400
NOI: $3,958/yr
P&I: $12,742/mo
For $0/mo net cash flow
At $3,950/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 | $3,634/mo | −$12,867/mo | -27.8% | $21,594/mo | −$12,934/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,950/mo | −$12,413/mo | -26.9% | $19,987/mo | −$12,257/mo |
| Optimistic (cap-limited) | +6% starting rent, 3% vacancy, 4.5%/yr rent growth (capped by AB 1482 ceiling of 8.6%/yr) | $4,187/mo | −$12,152/mo | -26.3% | $19,523/mo | −$11,741/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 unitsFeb 18, 2025 – Jun 27, 2025
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
New J A D U In Crawl Space; Conv Storage/Mech To Elevator Room; Furnace; W/H
Install Two Stop Residential Elevator; Remodel & Addition @ Lower Lvl And Bedrm Closet
8.7kw solar pv with tesla power wall (battery)
Remodel: M Bed & Bath, Closet, Living Rm, Replace [E] Fire Place T.D. 2/8/23
Generator & Plumbing
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.
| Report year | Project / record | Type | Entitled | Permitted | Completed | Deed-restricted |
|---|---|---|---|---|---|---|
| 2025 | —(179517) | ADU · Renter | — | 1 (Jun 27, 2025) | — | — |
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
0.32 acres
Assessor's classification for assessment purposes. This is not zoning.
50 GREAT CIRCLE DR
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Oct 30, 2026
Search by parcel number 043-121-06. Assessed value is not market value.
Search by parcel number 043-121-06 (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.