Kentfield 94904 · Kentfield · APN 075-171-03 · Unincorporated Marin
Zoned RSP-1 in Unincorporated Marin with likely ADU & SB 9 infill eligibility and mapped CAL FIRE moderate fire hazard severity zone (state responsibility area) due diligence; benchmark value $2,431,000 ($2,139,000–$2,723,000).
Zoned RSP-1 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 20,168 sq ft lot. Local precedent is active with 2 ADU permits within ¼ mile over the last 36 months.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
On-parcel permit history is indexed through Aug 11, 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)
103 substantial renovation & housing permits over 24 months (40.9 per 1,000 parcels vs. 16.3 citywide baseline) (#7 of 22 neighborhoods).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (Kentfield)
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: 7 permitted.
7 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.
$2,431,000
Benchmark range: $2,139,000 – $2,723,000
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)
Closest lead: Accessory dwelling unit at 432 Woodland Rd (0.47 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 (~$2,367/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
134 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 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.
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 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 RSP-1 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 10.2 yr (first record Aug 24, 2016), with no completion or new permit record in 10.2 yr. · 1 unit · $45,000 declared valuation
Permit issued and active for 5.5 yr (first record May 7, 2021), with no completion or new permit record in 5.5 yr. · $5,000 declared valuation
Permit issued and active for 3.1 yr (first record Sep 20, 2023), with no completion or new permit record in 2.8 yr. · 1 unit · $250,000 declared valuation
In "Applied" for 2.6 yr (since Apr 12, 2024), with no new permit record in 2.6 yr. · 1 unit · $1,250,000 declared valuation
Nearby plumbing / water heater / sewer (512 Goodhill Rd): First appeared in published agency feed
Record B48954 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby other (325 Crown Rd): First appeared in published agency feed
Record B48910 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby electrical / panel (325 Crown Rd): First appeared in published agency feed
Record B48911 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby other (505 Woodland Rd): First appeared in published agency feed
Record B48889 · 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 $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)
Plumbing / water heater / sewer permit application filed (B47863)
Current status: Issued
Replace Plumbing Fixtures(s) · Declared valuation: $7,130 · Contractor: Grier Argall Plumbing Inc
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Plumbing / water heater / sewer permit issued (B47863)
Recorded status: Issued
Replace Plumbing Fixtures(s) · Declared valuation: $7,130 · Contractor: Grier Argall Plumbing Inc
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
440 Woodland Rd · 1 unit · $450,000 valuation
Records span Aug 21, 2025 to Jul 22, 2026 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
109 Crown Rd A D U 109 A · 1 unit · $500,000 valuation
Records span Feb 27, 2026 to Jun 4, 2026 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
101 Crown Rd · 1 unit · $5,368,000 valuation
Records span Jul 1, 2025 to Apr 7, 2026 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
295 Crown Rd · 1 unit · $5,848 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)
605 Goodhill Rd (Adu 605 A) · 1 unit · $100,000 valuation
Records span Mar 12, 2025 to Aug 25, 2025 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
444 Woodland Rd (Adu 444a) · 1 unit · $700,000 valuation
Records span Dec 27, 2024 to Jul 29, 2025 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
619 Goodhill Rd · 1 unit · $222,000 valuation
Records span Mar 27, 2025 to Jul 25, 2025 (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 →In "Applied" for 2.6 yr (since Apr 12, 2024), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121). High-impact scale (1 housing unit, $1,250,000 declared valuation across 1 permit).
Active in "Issued" for 16 mo (first record Jul 1, 2025) with no new permit activity recorded in 7 mo. High-impact scale (1 housing unit, $5,368,000 declared valuation across 1 permit).
Active in "Issued" for 10.2 yr (first record Aug 24, 2016) with no new permit activity recorded in 10.2 yr.
Active in "Issued" for 20 mo (first record Mar 12, 2025) with no new permit activity recorded in 15 mo.
Active in "Issued" for 3.1 yr (first record Sep 20, 2023) with no new permit activity recorded in 2.8 yr.
Active in "Issued" for 5.5 yr (first record May 7, 2021) with no new permit activity recorded in 5.5 yr.
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 2,518 parcels
−33.9% YoY
City baseline: 16.3 / 1k
103 in trailing 24m
Includes 29 ADUs
| Builder / contractor | Primary specialty | Here / ½ mi | ½ mi valuation | Citywide 24m trend |
|---|---|---|---|---|
| Grier Argall Plumbing | Plumbing / water heater / sewer | 1 on parcel1 in ½ mi | $7,130 | 0 vs 0 prior |
| Owner Builder Recent nearby: 440 Woodland Rd (Jul 22, 2026) | Remodel / interior alteration | 11 in ½ mi | $2,405,000 | 226 vs 240 prior−6% |
| Hendrickson Pools Recent nearby: 101 Crown Rd (Oct 5, 2026) | Pool / spa |
| Permit category | Sample (n) | 25th pct | Median (50th) | 75th pct | 90th pct | Recent 24m median |
|---|---|---|---|---|---|---|
| New single-family home | 121 | 166d | 253d | 456d | 686d | 210d(vs 276d 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 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 ($24,300/yr) + local voter-approved bond debt ($3,645/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.
−$148,726/yr
Cash needed: $534,600
NOI: -$1,277/yr
P&I: $12,287/mo
For $0/mo net cash flow
At $3,275/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 | $3,013/mo | −$12,770/mo | -28.7% | $20,838/mo | −$12,858/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,275/mo | −$12,394/mo | -27.8% | $19,288/mo | −$12,296/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 | −$12,177/mo | -27.3% | $18,840/mo | −$11,868/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.
Replace Plumbing Fixtures(s)
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.
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 14, 2026
0.46 acres
Assessor's classification for assessment purposes. This is not zoning.
1 PHOENIX RD
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Nov 14, 2026
Search by parcel number 075-171-03. Assessed value is not market value.
Search by parcel number 075-171-03 (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.
| 6 in ½ mi |
| $874,150 |
| 3 vs 4 prior |
| Owner Recent nearby: 240 Hillside Ave/ 238 Hillside Is The Adu Address (Jun 17, 2021) | Addition (adds square footage) | 5 in ½ mi | $1,253,750 | 25 vs 15 prior+67% |
| Emr Construction Recent nearby: 619 Goodhill Rd (Jan 23, 2026) | Accessory dwelling unit (new or conversion) | 4 in ½ mi | $669,376 | 4 vs 6 prior |
| Colindres And Associates Recent nearby: 110 Idlewood Rd (Jan 13, 2023) | New garage / accessory structure | 4 in ½ mi | $330,000 | 2 vs 1 prior |
| Summit Professional Builders Recent nearby: 432 Woodland Rd (May 28, 2014) | Demolition | 3 in ½ mi | $740,000 | 0 vs 0 prior |
| Faubel Construction Recent nearby: 605 Goodhill Rd (Adu 605 A) (Aug 25, 2025) | Accessory dwelling unit (new or conversion) | 3 in ½ mi | $240,000 | 2 vs 1 prior |
| Stader Construction Recent nearby: 75 Westwood Dr (Aug 6, 2018) | Addition (adds square footage) | 3 in ½ mi | $225,000 | 0 vs 0 prior |
| Duffy CA Construction Recent nearby: 3 Tree Top Way (Jul 23, 2015) | New garage / accessory structure | 3 in ½ mi | $55,000 | 0 vs 0 prior |
| 316 |
| 103d |
| 160d |
| 249d |
| 440d |
| 159d(vs 166d prior) |
| Remodel / interior alteration | 1,054 | 36d | 83d | 148d | 266d | 112d(vs 77d prior) |
| Commercial tenant improvement | 81 | 99d | 148d | 233d | 443d | 152d(vs 150d prior) |
| Plumbing / water heater / sewerOn this parcel | 2,211 | 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.