Inverness 94956 · Inverness · APN 114-101-08 · Unincorporated Marin
Zoned C-RSP-0.25 in Unincorporated Marin with likely ADU & SB 9 infill eligibility and mapped CAL FIRE high fire hazard severity zone (state responsibility area) due diligence; benchmark value $2,071,000 ($1,822,000–$2,320,000).
Zoned C-RSP-0.25 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 87,512 sq ft lot. Local precedent is active with 1 ADU permit 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 (4 total permits, latest Aug 13, 2026).
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.
31 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
$2,071,000
Benchmark range: $1,822,000 – $2,320,000
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 Apr 1, 2024)
Accessory dwelling unit at 19 Sunnyside Dr: Active in "Issued" for 2.7 yr (first record Feb 29, 2024) with no new permit activity recorded in 2.3 yr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
Closest lead: New home at 372 Drakes View Dr (0.42 mi W, 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)
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 C-RSP-0.25 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 3.9 yr (first record Dec 1, 2022), with no completion or new permit record in 3.2 yr. · 1 unit · $260,000 declared valuation
Permit issued and active for 2.7 yr (first record Feb 29, 2024), with no completion or new permit record in 2.3 yr. · 1 unit · $240,000 declared valuation
Permit issued and active for 9.1 yr (first record Sep 19, 2017), with no completion or new permit record in 8.9 yr. · 1 unit
Permit issued and active for 5.1 yr (first record Oct 1, 2021), with no completion or new permit record in 3.2 yr. · 1 unit · $800,000 declared valuation
Nearby other (320 Drakes View Dr): First appeared in published agency feed
Record B49074 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby electrical / panel (260 Drakes View Dr): First appeared in published agency feed
Record B49044 · 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 $1,501,820 in September 2025 to $1,542,479 in September 2026.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94956 (not a parcel appraisal)
Roof replacement permit application filed (B47883)
Current status: Issued
ReRoofing; With Electronic Inspection · Declared valuation: $25,200 · Contractor: Wedge Roofing Inc
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Roof replacement permit issued (B47883)
Recorded status: Issued
ReRoofing; With Electronic Inspection · Declared valuation: $25,200 · Contractor: Wedge Roofing Inc
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Other permit application filed (B45749)
Current status: Issued
Declared valuation: $19,000 · Contractor: Pac Solar Corporation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Other permit issued (B45749)
Recorded status: Issued
Declared valuation: $19,000 · Contractor: Pac Solar Corporation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Annual ZIP 94956 home-value index checkpoint
Changed from $1,589,298 in September 2024 to $1,501,820 in September 2025.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94956 (not a parcel appraisal)
Annual ZIP 94956 home-value index checkpoint
Changed from $1,463,943 in September 2023 to $1,589,298 in September 2024.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94956 (not a parcel appraisal)
Building permit reported to State HCD for 1 housing unit (177178)
Reported in 2024 Housing Element Annual Progress Report
ADU · Renter
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: parcel
Accessory dwelling unit (new or conversion) permit issued (177178)
Recorded status: Issued
(N) Detached A D U; Decks · Declared valuation: $240,000 · 1 housing unit · Contractor: Owner/Builder
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Accessory dwelling unit (new or conversion) permit application filed (177178)
Current status: Issued
(N) Detached A D U; Decks · Declared valuation: $240,000 · Contractor: Owner/Builder
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Annual ZIP 94956 home-value index checkpoint
Changed from $1,569,892 in September 2022 to $1,463,943 in September 2023.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94956 (not a parcel appraisal)
Building permit reported to State HCD for 1 housing unit (174833)
Reported in 2023 Housing Element Annual Progress Report
ADU · Renter
Source: California HCD, Housing Element Annual Progress Report — Table A2 · Geography: parcel
Building permit reported to State HCD for 1 housing unit (174833)
Reported in 2023 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 Unincorporated Marin development graph →Active in "Issued" for 2.7 yr (first record Feb 29, 2024) with no new permit activity recorded in 2.3 yr.
Active in "Issued" for 3.9 yr (first record Dec 1, 2022) with no new permit activity recorded in 3.2 yr.
Active in "Issued" for 5.1 yr (first record Oct 1, 2021) with no new permit activity recorded in 3.2 yr. High-impact scale (1 housing unit, $800,000 declared valuation across 1 permit).
Active in "Issued" for 9.1 yr (first record Sep 19, 2017) with no new permit activity recorded in 8.9 yr.
High-impact scale (1 housing unit, $860,000 declared valuation across 1 permit).
High-impact scale (1 housing unit, $790,000 declared valuation across 1 permit).
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 1,390 parcels
Small prior baseline
City baseline: 16.4 / 1k
9 in trailing 24m
Includes 4 ADUs
| Builder / contractor | Primary specialty | Here / ½ mi | ½ mi valuation | Citywide 24m trend |
|---|---|---|---|---|
| Owner Builder | New single-family home | 2 on parcel3 in ½ mi | $500,000 | 226 vs 240 prior−6% |
| Wedge Roofing | Roof replacement | 1 on parcel1 in ½ mi | $25,200 | 0 vs 0 prior |
| Pac Solar | Other | 1 on parcel1 in ½ mi | $19,000 |
| Permit category | Sample (n) | 25th pct | Median (50th) | 75th pct | 90th pct | Recent 24m median |
|---|---|---|---|---|---|---|
| New single-family homeOn this parcel | 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)On this parcel | 298 | 120d | 204d | 331d | 549d |
HUD Small Area Fair Market Rent · ZIP 94956
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 ($20,700/yr) + local voter-approved bond debt ($3,105/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.
−$125,296/yr
Cash needed: $455,400
NOI: $309/yr
P&I: $10,467/mo
For $0/mo net cash flow
At $3,000/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 | $2,760/mo | −$10,786/mo | -28.4% | $17,816/mo | −$10,857/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,000/mo | −$10,441/mo | -27.5% | $16,490/mo | −$10,342/mo |
| Optimistic (cap-limited) | +6% starting rent, 3% vacancy, 4.5%/yr rent growth (capped by AB 1482 ceiling of 8.6%/yr) | $3,180/mo | −$10,243/mo | -27.0% | $16,107/mo | −$9,950/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 29, 2024 – Jul 24, 2024
Issued1 unitsDec 1, 2022 – Sep 6, 2023
We group related permits and State housing reports into projects. That grouping is our inference, not an official record.
ReRoofing; With Electronic Inspection
(N) Detached A D U; Decks
(N) S F D & Attached Carport
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 |
|---|---|---|---|---|---|---|
| 2024 | —(177178) | ADU · Renter | — | 1 (Jul 24, 2024) | — | — |
| 2023 | —(174833) | SFD · Owner | 1 (Dec 1, 2022) | 1 (Sep 6, 2023) | — | — |
| 2023 | —(174833) | ADU · Renter | 1 (Dec 1, 2022) | 1 (Sep 6, 2023) | — | — |
| 2023 | —(90814) | SFD · Owner | — | 1 (Sep 6, 2023) | — | — |
| 2022 | —(P3592) | SFD · Owner | 1 (Dec 1, 2022) | — | — | — |
| 2022 | — | ADU · Renter | 1 (Dec 1, 2022) | — | — | — |
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
2.01 acres
Assessor's classification for assessment purposes. This is not zoning.
19 SUNNYSIDE DR; 21 SUNNYSIDE DR
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Nov 13, 2026
Search by parcel number 114-101-08. Assessed value is not market value.
Search by parcel number 114-101-08 (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.
| Sawyer Construction Recent nearby: 360 Drakes View Dr (Jan 28, 2025) | New garage / accessory structure | 4 in ½ mi | $329,390 | 1 vs 0 prior |
| Arrow Construction And Remodeling Recent nearby: 35 Pine Crest (Feb 19, 2025) | Addition (adds square footage) | 3 in ½ mi | $580,000 | 1 vs 2 prior |
| North Cal Restoration And Construction Recent nearby: 30 E Robert Dr (Sep 17, 2021) | New garage / accessory structure | 3 in ½ mi | $350,000 | 1 vs 0 prior |
| Tim Graveson Recent nearby: 320 Drakes View Dr (Apr 20, 2017) | New garage / accessory structure | 2 in ½ mi | $910,000 | 0 vs 0 prior |
| Roger H Evje Recent nearby: 372 Drakes View Dr (Aug 18, 2023) | New single-family home | 1 in ½ mi | $800,000 | 0 vs 0 prior |
| Telford Construction Recent nearby: 75 Sunnyside Dr (Sep 16, 2019) | New single-family home | 1 in ½ mi | $790,000 | 0 vs 0 prior |
| Jg Lino Construction Recent nearby: 60 E Robert Dr (May 2, 2023) | Addition (adds square footage) | 1 in ½ mi | $499,000 | 5 vs 2 prior |
| 214d(vs 181d prior) |
| Addition (adds square footage) | 316 | 103d | 160d | 249d | 440d | 157d(vs 167d 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) |
| Roof replacementOn this parcel | 3,663 | 0d | 0d | 0d | 0d | 0d |
| OtherOn this parcel | 1,560 | 0d | 0d | 1d | 71d | 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.