Novato 94947 · North Novato · APN 125-400-10 · Unincorporated Marin
Zoned RSP-0.33 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 $1,152,000 ($1,014,000–$1,290,000).
Zoned RSP-0.33 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 7,884 sq ft lot.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
Public building records show issued construction/renovation work on this parcel (9 total permits, latest Dec 2, 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.
Since November 2024 within ½ mile: 1 permitted.
1 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.
61 permits within ½ mile since November 2024
$1,152,000
Benchmark range: $1,014,000 – $1,290,000
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: Accessory dwelling unit at 138 Trish Dr (0.4 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 (~$1,142/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
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
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 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 RSP-0.33 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 3.1 yr (first record Sep 22, 2023), with no completion or new permit record in 2.2 yr. · 1 unit · $150,400 declared valuation
In "Applied" for 2.1 yr (since Sep 19, 2024), with no new permit record in 2.1 yr. · 1 unit · $160,000 declared valuation
Permit issued and active for 3 yr (first record Oct 27, 2023), with no completion or new permit record in 2.1 yr. · 1 unit · $1,000 declared valuation
Permit issued and active for 2.1 yr (first record Sep 20, 2024), with no completion or new permit record in 17 mo. · 1 unit · $160,000 declared valuation
Nearby remodel / interior alteration (40 Verissimo Dr): First appeared in published agency feed
Record 94625 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby electrical / panel (130 Sanchez Way): First appeared in published agency feed
Record B48710 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby electrical / panel (120 Sanchez Way): First appeared in published agency feed
Record B48709 · 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 $983,284 in September 2025 to $1,012,808 in September 2026.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94947 (not a parcel appraisal)
Annual ZIP 94947 home-value index checkpoint
Changed from $1,021,699 in September 2024 to $983,284 in September 2025.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94947 (not a parcel appraisal)
138 Trish Dr (Adu 138 A) · 1 unit · $160,000 valuation
Records span Sep 20, 2024 to Jun 5, 2025 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
90 Verissimo Dr (Adu 90a) · 1 unit · $1,000 valuation
Records span Oct 27, 2023 to Oct 11, 2024 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94947 home-value index checkpoint
Changed from $993,500 in September 2023 to $1,021,699 in September 2024.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94947 (not a parcel appraisal)
138 Trish Dr · 1 unit · $160,000 valuation
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
37 Oak Valley Dr (Adu 37a) · 1 unit · $150,400 valuation
Records span Sep 22, 2023 to Sep 5, 2024 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
2576 Center Rd (Adu 2576a) · 1 unit · $100,000 valuation
Records span Oct 24, 2023 to May 22, 2024 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94947 home-value index checkpoint
Changed from $1,029,641 in September 2022 to $993,500 in September 2023.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94947 (not a parcel appraisal)
EV charger permit application filed (B31926)
Current status: Issued
Dedicated 40 amp circuit from subpanel to Tesla level 2 charging station in the garage. EV Charger will be surface mounted in the front left corner of the garage. — New Circuits / Outlets, EV Charging Station · Declared valuation: $1,600 · Contractor: Ernest Ongaro & Sons Inc
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
EV charger permit issued (B31926)
Recorded status: Issued
Dedicated 40 amp circuit from subpanel to Tesla level 2 charging station in the garage. EV Charger will be surface mounted in the front left corner of the garage. — New Circuits / Outlets, EV Charging Station · Declared valuation: $1,600 · Contractor: Ernest Ongaro & Sons Inc
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Geography: parcel
Annual ZIP 94947 home-value index checkpoint
Changed from $949,991 in September 2021 to $1,029,641 in September 2022.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94947 (not a parcel appraisal)
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 2.1 yr (since Sep 19, 2024), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
Active in "Issued" for 2.1 yr (first record Sep 20, 2024) with no new permit activity recorded in 17 mo.
Active in "Issued" for 3 yr (first record Oct 27, 2023) with no new permit activity recorded in 2.1 yr.
Active in "Issued" for 3.1 yr (first record Sep 22, 2023) with no new permit activity recorded in 2.2 yr.
Substantial improvements (additions, interior remodels, ADUs, commercial TI, and new builds) across 732 parcels
Small prior baseline
City baseline: 16.4 / 1k
6 in trailing 24m
Includes 2 ADUs
| Builder / contractor | Primary specialty | Here / ½ mi | ½ mi valuation | Citywide 24m trend |
|---|---|---|---|---|
| Owner | New garage / accessory structure | 1 on parcel8 in ½ mi | $1,136,501 | 25 vs 15 prior+67% |
| Tesla Energy | Solar / battery storage | 3 on parcel3 in ½ mi | $23,290 | 0 vs 0 prior |
| Richard Osorio Heating And Air | HVAC / heat pump | 3 on parcel3 in ½ mi | $19,323 |
| Permit category | Sample (n) | 25th pct | Median (50th) | 75th pct | 90th pct | Recent 24m median |
|---|---|---|---|---|---|---|
| New single-family home | 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) | 298 | 120d | 204d | 331d | 549d | 214d(vs 181d prior) |
| Addition (adds square footage) |
HUD Small Area Fair Market Rent · ZIP 94947
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 ($11,500/yr) + local voter-approved bond debt ($1,725/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.
−$56,569/yr
Cash needed: $253,000
NOI: $13,211/yr
P&I: $5,815/mo
For $0/mo net cash flow
At $3,250/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 | $2,990/mo | −$5,088/mo | -24.1% | $10,092/mo | −$5,076/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,250/mo | −$4,714/mo | -22.4% | $9,341/mo | −$4,518/mo |
| Optimistic (cap-limited) | +6% starting rent, 3% vacancy, 4.5%/yr rent growth (capped by AB 1482 ceiling of 8.6%/yr) | $3,445/mo | −$4,500/mo | -21.3% | $9,124/mo | −$4,094/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.
Dedicated 40 amp circuit from subpanel to Tesla level 2 charging station in the garage. EV Charger will be surface mounted in the front left corner of the garage. — New Circuits / Outlets, EV Charging Station
Need to replace a section of underground water pipe between NMWD main shut off valve and the main water valve at the house. Replacement only, not new. Estimated repair cost of around $3,500. — Replace Plumbing Fixtures(s)
Install new ac. — Mechanical Appliance
Upgr Main Panel To 125 A
Battery Storage - Express
Replace furnace and air conditioner in existing locations — Replace Mechanical Appliance
Replace existing furnace. — Replace Mechanical Appliance
P V Sys6.24 K W - Express
Tearoff & Re-Roof W/ Comp Shngls To Meet W U I Reqs
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.
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 13, 2026
0.18 acres
Assessor's classification for assessment purposes. This is not zoning.
100 SANCHEZ WAY
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Nov 13, 2026
Search by parcel number 125-400-10. Assessed value is not market value.
Search by parcel number 125-400-10 (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.
| 0 vs 0 prior |
| Murphy Roofing Consulting | Roof replacement | 1 on parcel1 in ½ mi | $10,500 | 0 vs 0 prior |
| Ernest Ongaro And Sons | EV charger | 1 on parcel1 in ½ mi | $1,600 | 0 vs 0 prior |
| Owner Builder Recent nearby: 2640 Center Rd (Sep 23, 2026) | Addition (adds square footage) | 9 in ½ mi | $2,456,000 | 226 vs 240 prior−6% |
| Marco Design Group Recent nearby: 43 Oak Valley Dr (May 9, 2017) | New garage / accessory structure | 3 in ½ mi | $81,000 | 0 vs 1 prior |
| Rich Armusewicz Construction Recent nearby: 2770 Center Rd (May 4, 2016) | Remodel / interior alteration | 2 in ½ mi | $44,000 | 0 vs 1 prior |
| Kodikay Dba Oxbow Pool And Landscape Contractors Recent nearby: 63 Oak Valley Dr (Jun 16, 2021) | Pool / spa | 1 in ½ mi | $219,195 | 0 vs 0 prior |
| 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) |
| Solar / battery storageOn this parcel | 2,977 | 0d | 0d | 0d | 2d | 0d |
| EV chargerOn this parcel | 482 | 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.