1. Home
  2. California
  3. Marin County
  4. Mill Valley
  5. Monte Cimas Ave

18 Monte Cimas Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 18 Monte Cimas Ave, Mill Valley, CA 94941

Property Summary

Property TypeSingle Family Home
Details1 bd · 1 ba · 528 sqft · built 1939
Lot Size0.135 acres (5,900 sqft)
Owner2 Company Names on Record
Last Sale$261,000 (Feb 1998)
Tax Bill$6,888 (2025)
Deeds & MortgagesApr 2023 Transfer
Flood ZoneZone X (minimal risk)
APN045-272-08

Property Details

APN / Parcel Number

Primary APN045-272-08

Interior

Bedrooms1 Bed
Full Baths1 Bath
Building Area528 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1939
Effective Year BuiltEffective 1939
Architectural StyleContemporary
Lot Area5,900 sqft (0.135 acres)

Location & Zoning

Street Address18 MONTE CIMAS AVE
CityMILL VALLEY
StateCA
Zip94941-1742
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal SubdivisionMUIR WOODS 02
Legal BlockF
Legal Lot Number8,9
JurisdictionMARIN CA
Township / Civil DivisionSOUTHEAST MARIN
Census Block Group1
Census Block1001
Census Tract128200

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Listed AreaWithin Dipsea Trail, The
listed 2010 · 1 contributing resources · NRIS 10000356

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

Source: Marin County records, as of July 13, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Company Names on Record
Mailing Address18 MONTE CIMAS AVE, MILL VALLEY, CA 94941-1742
OccupancyOwner Occupied
Owner TypeCompany
VestingBorrower in Default

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleFeb 27, 1998 · Amount on Record
Deed SaleFeb 27, 1998 · Amount on Record
Deed Document Number199812354
Last Transfer DateApr 3, 2023
Transfer Doc0000008673
Record UpdatedSep 20, 2026

April 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionMARIN CA
Recording DateApr 6, 2023
Property Address18 MONTE CIMAS AVE, MILL VALLEY, CA 94941-1742
Document Number0000008673
Map ReferenceMB 3 PG 66
Instrument DateApr 3, 2023
Instrument2023-0008673
Transaction TypeTransfer
Record UpdatedJun 7, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address18 MONTE CIMAS AVE, MILL VALLEY, CA 94941-1742

Tax Assessment & Valuation

Source: Marin County assessment roll, as of July 13, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyMarin County
Elementary School DistrictMill Valley Elementary School District (KG - 08)
Secondary School DistrictTamalpais Union High School District (09 - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$416,102 (+2%) Land $244,287 Building $171,815
2025$6,888.00 (+6.66%) Homeowner's exemption$407,943 (+4.04%) Land $239,497 Building $168,446
2023$6,458.00 (+3.78%) Homeowner's exemption$392,105 Land $230,199 Building $161,906
2022$6,223.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Claims1 (2024)
Claims Outside the SFHA1 of 1
Most Recent ClaimJan 2024 · other causes

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskModerate
above 47% of the US · lower than 72% of California
Wildfire Likelihood0.09% annual chance
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemMARIN MUNICIPAL WATER DISTRICT
serves 188,116 people · EPA ID CA2110002
Water SourceSurface water
Last State InspectionAug 2023
LeadUnder 1 ppb (2019–2021)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 205 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Unwired
Fixed Wireless		300 / 25
AT&T
DSL · Fiber, Fixed Wireless in parts of the area		100 / 20

May also be available: Muir Beach LAN, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Monte Cimas Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures