Sausalito 94965 · Waldo Point · APN 901-020-20 · Unincorporated Marin
Zoned RF-BFC in Unincorporated Marin and mapped FEMA AE flood due diligence; benchmark value $1,432,000 ($1,260,000–$1,604,000).
Public building records show issued construction/renovation work on this parcel (2 total permits, latest Sep 9, 2021).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
Zone AE: 1% annual chance flood (Special Flood Hazard Area) overlaps this parcel. Expect mandatory flood insurance for federally backed loans and floodplain elevation/mitigation rules for new units or SB 9 applications.
Source: FEMA National Flood Hazard Layer (parcel polygon)
Closest lead: New home at 7 Charles Van Damme Dock (0.11 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)
Automated synthesis of indexed municipal, county, state, and federal public records — informational context only, not a formal appraisal, survey, or legal/tax determination.
$1,432,000
Benchmark range: $1,260,000 – $1,604,000
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,410/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
Since November 2024 within ½ mile: 2 permitted, 1 proposed or in review.
3 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.
100 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
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 RF-BFC as other, 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 12.6 yr (first record Mar 27, 2014), with no completion or new permit record in 12.6 yr. · $42,000 declared valuation
Permit issued and active for 12.9 yr (first record Dec 30, 2013), with no completion or new permit record in 12.6 yr. · 1 unit · $700,000 declared valuation
Permit issued and active for 19 yr (first record Nov 13, 2007), with no completion or new permit record in 12.3 yr. · 1 unit · $256,200 declared valuation
Permit issued and active for 12.9 yr (first record Dec 11, 2013), with no completion or new permit record in 12.3 yr. · 1 unit · $600,000 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 11.7 yr (first record Mar 19, 2015), with no completion or new permit record in 10.9 yr. · 1 unit · $170,000 declared valuation
Nearby other (1 East Pier): First appeared in published agency feed
Record 94640 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby addition (adds square footage) (6 Yellow Ferry Dock): First appeared in published agency feed
Record 94628 · Detected between snapshots
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · Snapshot diff within ½ mile
Nearby addition (adds square footage) (7 West Pier): First appeared in published agency feed
Record 94621 · 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
Latest published Zillow Home Value Index (ZHVI) update
Changed from $1,532,575 in September 2025 to $1,591,406 in September 2026.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94965 (not a parcel appraisal)
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)
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 94965 home-value index checkpoint
Changed from $1,596,850 in September 2024 to $1,532,575 in September 2025.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94965 (not a parcel appraisal)
1 unit
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94965 home-value index checkpoint
Changed from $1,650,994 in September 2023 to $1,596,850 in September 2024.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94965 (not a parcel appraisal)
190 Donahue St · $70,000 valuation
Records span Jun 30, 2023 to Dec 7, 2023 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94965 home-value index checkpoint
Changed from $1,761,089 in September 2022 to $1,650,994 in September 2023.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94965 (not a parcel appraisal)
57 Issaquah Dock · 1 unit · $475,000 valuation
Records span Nov 7, 2022 to Mar 30, 2023 (1 permit).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) & HCD APR (grouped project within ½ mile)
Annual ZIP 94965 home-value index checkpoint
Changed from $1,646,907 in September 2021 to $1,761,089 in September 2022.
Source: Zillow Home Value Index (ZHVI) · Data provided by Zillow · Geography: ZIP 94965 (not a parcel appraisal)
5 Main Dock · 1 unit · $237,000 valuation
Records span Dec 4, 2020 to Sep 28, 2022 (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 →Active in "Issued" for 9.3 yr (first record Aug 1, 2017) with no new permit activity recorded in 7.2 yr. High-impact scale (1 housing unit, 1 deed-restricted affordable, $110,000 declared valuation across 1 permit).
Active in "Issued" for 11.4 yr (first record Jul 7, 2015) with no new permit activity recorded in 8.5 yr. High-impact scale (1 housing unit, 1 deed-restricted affordable, $78,000 declared valuation across 1 permit).
In "Applied" for 11.5 yr (since May 6, 2015), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
Active in "Issued" for 15 mo (first record Aug 4, 2025) with no new permit activity recorded in 11 mo. High-impact scale (1 housing unit, $950,000 declared valuation across 1 permit).
Active in "Issued" for 12.9 yr (first record Dec 11, 2013) with no new permit activity recorded in 12.3 yr.
Active in "Issued" for 8.6 yr (first record Mar 21, 2018) with no new permit activity recorded in 8 yr.
| Builder / contractor | Primary specialty | Here / ½ mi | ½ mi valuation | Citywide 24m trend |
|---|---|---|---|---|
| Insight Builders | Remodel / interior alteration | 1 on parcel6 in ½ mi | $489,500 | 0 vs 0 prior |
| Bellows Plumbing Heating And Air | HVAC / heat pump | 1 on parcel1 in ½ mi | $12,000 | 0 vs 0 prior |
| Owner Builder Recent nearby: 1 Cole Dr (1 - 15) (May 15, 2026) | Remodel / interior alteration | 49 in ½ mi | $45,057,911 |
| 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 94965
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 ($14,300/yr) + local voter-approved bond debt ($2,145/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.
−$70,278/yr
Cash needed: $314,600
NOI: $16,493/yr
P&I: $7,231/mo
For $0/mo net cash flow
At $3,950/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 | $3,634/mo | −$6,310/mo | -24.1% | $12,442/mo | −$6,292/mo |
| Base (your inputs) | Your entered assumptions, 3.0%/yr rent growth | $3,950/mo | −$5,856/mo | -22.3% | $11,517/mo | −$5,614/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 | −$5,596/mo | -21.3% | $11,249/mo | −$5,099/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.
Remodel Houseboate Tt.D. 7/9/21
Install Mitsubishi 30K mini split. Condenser on mounting bracket at rear of houseboat. — Mechanical Appliance
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
0.01 acres
Assessor's classification for assessment purposes. This is not zoning.
21 LIBERTY DOCK
Source: County of Marin GIS (MarinMap), Parcels · Geography: parcel · Retrieved Nov 13, 2026
Search by parcel number 901-020-20. Assessed value is not market value.
Search by parcel number 901-020-20 (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.
| 226 vs 240 prior−6% |
| Owner Recent nearby: 20 West Pier (Oct 2, 2023) | New garage / accessory structure | 11 in ½ mi | $682,450 | 25 vs 15 prior+67% |
| Wise Owl Construction Recent nearby: 2 A Main Dock (Also Known As C Dock) (Jul 27, 2016) | Addition (adds square footage) | 5 in ½ mi | $335,000 | 0 vs 0 prior |
| Mm Construction Recent nearby: 11 Gate 6 1/2 (Feb 5, 2024) | Remodel / interior alteration | 5 in ½ mi | $201,000 | 0 vs 2 prior |
| Sausalito Construction Recent nearby: 29 East Pier #A (May 17, 2017) | Remodel / interior alteration | 4 in ½ mi | $897,500 | 0 vs 0 prior |
| Norman Charles Construction Recent nearby: 70 Century Dr (Jul 22, 2024) | Remodel / interior alteration | 3 in ½ mi | $320,000 | 0 vs 3 prior |
| Hartwell Construction Recent nearby: 26 Gate 6 1/2 (Jul 30, 2018) | Remodel / interior alteration | 3 in ½ mi | $112,000 | 0 vs 0 prior |
| Jw Rigney Construction Recent nearby: 1 Gate 5 Rd C (Main Dock) (Oct 20, 2015) | New garage / accessory structure | 3 in ½ mi | $22,700 | 0 vs 0 prior |
| 316 |
| 103d |
| 160d |
| 249d |
| 440d |
| 157d(vs 167d prior) |
| Remodel / interior alterationOn this parcel | 1,054 | 36d | 83d | 148d | 266d | 112d(vs 77d prior) |
| Commercial tenant improvement | 81 | 99d | 148d | 233d | 443d | 152d(vs 150d prior) |
| HVAC / heat pumpOn this parcel | 2,946 | 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.