Inverness 94956 · Inverness · APN 114-120-55 · 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 $1,850,000 ($1,628,000–$2,072,000).
Zoned C-RSP-0.25 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 39,857 sq ft lot.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
Public building records show issued construction/renovation work on this parcel (7 total permits, latest Feb 24, 2022).
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.
20 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.
$1,850,000
Benchmark range: $1,628,000 – $2,072,000
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)
Closest lead: New home at 372 Drakes View Dr (0.25 mi NW, 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)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,810/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
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.
No ADU or new-home permits recorded within ¼ mile in this window.
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 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 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
Permit issued and active for 4 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
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)
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)
19 Sunnyside Dr · 1 unit · $240,000 valuation
Records span Feb 29, 2024 to Jul 24, 2024 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
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)
21 Sunnyside Dr (Aka 19) · 1 unit · $260,000 valuation
Records span Dec 1, 2022 to Sep 6, 2023 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
372 Drakes View Dr · 1 unit · $800,000 valuation
Records span Oct 1, 2021 to Aug 18, 2023 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94956 home-value index checkpoint
Changed from $1,451,926 in September 2021 to $1,569,892 in September 2022.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94956 (not a parcel appraisal)
Windows / doors / siding permit application filed (B28859)
Current status: Issued
Replace (5) windows, same size as existing. — Non-structural Door/Window Replacement · Declared valuation: $11,860 · Contractor: Golden Gate Home Improvement Inc
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Windows / doors / siding permit issued (B28859)
Recorded status: Issued
Replace (5) windows, same size as existing. — Non-structural Door/Window Replacement · Declared valuation: $11,860 · Contractor: Golden Gate Home Improvement Inc
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Annual ZIP 94956 home-value index checkpoint
Changed from $1,160,063 in September 2020 to $1,451,926 in September 2021.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94956 (not a parcel appraisal)
75 Sunnyside Dr · 1 unit · $790,000 valuation
Records span Apr 25, 2019 to Mar 25, 2021 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Solar / battery storage permit issued (162456)
Recorded status: Issued
Rooftop P V - 7.56 K W - Express · Declared valuation: $32,000 · Contractor: Sun First 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 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 2.7 yr (first record Feb 29, 2024) with no new permit activity recorded in 2.3 yr.
Active in "Issued" for 4 yr (first record Dec 1, 2022) with no new permit activity recorded in 3.2 yr.
High-impact scale (1 housing unit, $790,000 declared valuation across 1 permit).
High-impact scale (1 housing unit, $860,000 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: 16.3 / 1k
9 in trailing 24m
Includes 4 ADUs
| Builder / contractor | Primary specialty | Here / ½ mi | ½ mi valuation | Citywide 24m trend |
|---|---|---|---|---|
| Sun First | Solar / battery storage | 2 on parcel2 in ½ mi | $56,000 | 0 vs 0 prior |
| Marin County Sidewall | Windows / doors / siding | 1 on parcel1 in ½ mi | $74,783 | 0 vs 0 prior |
| Golden Gate Home Improvement | Windows / doors / siding | 1 on parcel1 in ½ mi | $11,860 |
| 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 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 ($18,500/yr) + local voter-approved bond debt ($2,775/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.
−$109,416/yr
Cash needed: $407,000
NOI: $2,839/yr
P&I: $9,355/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 | −$9,463/mo | -27.9% | $15,969/mo | −$9,516/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,000/mo | −$9,118/mo | -26.9% | $14,780/mo | −$9,001/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 | −$8,920/mo | -26.3% | $14,437/mo | −$8,610/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 (5) windows, same size as existing. — Non-structural Door/Window Replacement
2 Tesla Powerwall Battery Backup Units
Rooftop P V - 7.56 K W - Express
Cedar Siding — Siding Replacement
Beams & Post Repl Underfloor - Express***Expired
Service Upgrade To 200a
Electrical For Work Pursuant To Septic System Permit With E H 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
0.91 acres
Assessor's classification for assessment purposes. This is not zoning.
83 SUNNYSIDE DR
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Nov 14, 2026
Search by parcel number 114-120-55. Assessed value is not market value.
Search by parcel number 114-120-55 (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.
| Nestler Peter Builder | General repair | 1 on parcel1 in ½ mi | $6,000 | 0 vs 0 prior |
| Harris David | Electrical / panel | 1 on parcel1 in ½ mi | $3,500 | 0 vs 0 prior |
| Prince Charles William | Electrical / panel | 1 on parcel1 in ½ mi | $1,000 | 0 vs 0 prior |
| 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 |
| Owner Builder Recent nearby: 19 Sunnyside Dr (Jul 24, 2024) | Accessory dwelling unit (new or conversion) | 3 in ½ mi | $501,500 | 226 vs 240 prior−6% |
| 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 |
| 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) |
| Solar / battery storageOn this parcel | 2,977 | 0d | 0d | 0d | 2d | 0d |
| Electrical / panelOn this parcel | 3,020 | 0d | 0d | 0d | 2d | 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.