18938 Prospect Dr, Sonoma, CA 95476 Property Records

Sonoma County property record for 18938 Prospect Dr, Sonoma, CA 95476

Property Summary

Property Type	Residential Vacant Land
Lot Size	1.6 acres (69,696 sqft)
Owner	2 Individual Names on File
Last Sale	$860,000 (Jun 2013)
Tax Bill	$1,221 (2025)
Deeds & Mortgages	Oct 2020 Second Mortgage Jul 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`064-070-026-000`

Property Details

APN / Parcel Number

Primary APN	`064-070-026-000`
Alternative APN	`064-070-026`

Exterior

Lot Area	69,696 sqft

Location & Zoning

Old Parcel Number	064-070-026
Street Address	18938 PROSPECT DR
City	SONOMA
State	CA
Zip	95476-6023
Property Category	Residential
Property Type	Vacant Land > Residential
Local Zoning Code	RRB7FRZN
Legal Description	LOT 49, DIAMOND A RANCH ESTATES UNIT 5
Legal Subdivision	RANCH ESTATE
Legal Block	1
Legal Lot Number	49
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	1
Census Block	1015
Census Tract	150303

Owner

18938 Prospect Dr, residential vacant land, is owned by two individuals who bought it in June 2013.

Source: Sonoma County records, as of September 1, 2026

Owner of Record	2 Individual Names on File
Mailing Address	18910 PROSPECT DR, SONOMA, CA 95476-6023
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Oct 9, 2020	Deed of Trust, Mortgage · Stand-Alone Second Mortgage FIRST REPUBLIC BANK
Jul 2, 2020	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 21, 2013 · Amount on File
Deed Sale	Jun 21, 2013 · Amount on File
Deed Document Number	201364753
Prior Transfer Date	Aug 10, 2011
Prior Transfer Doc	0000070044
Record Updated	Oct 29, 2026

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	18938 PROSPECT DR, SONOMA, CA 95476-6023
Transaction Type	Mortgage
Record Updated	Jul 25, 2022
Title Company	NORTH AMERICAN TITLE CONCORD

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000092075
Date	Oct 9, 2020
Instrument	2020092075

Lender

Name	FIRST REPUBLIC BANK
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Type	Stand-Alone Second Mortgage
Amount	Amount on Record
Term	299 Months
Due	Sep 26, 2045

July 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	18938 PROSPECT DR, SONOMA, CA 95476-6023
Document Number	0000055509
Instrument Date	Jul 2, 2020
Transaction Type	Mortgage
Record Updated	Jul 24, 2020
Title Company	FIDELITY NATIONAL TITLE

Transaction

Additional	Multiple Parcels

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	18910 PROSPECT DR SONOMA CA 954766023, SONOMA, CA 95476-6023

Mortgage

Document Number	0000055509
Date	Jul 8, 2020
Instrument	55509

Lender

Name	GUARANTEED RATE
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jul 7, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 18938 Prospect Dr was $1,221.

Source: Sonoma County assessment roll, as of September 1, 2026

Property Jurisdictions

Type	Name
State	California
County	Sonoma County
Unified School District	Sonoma Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$74,168 (+2%) Land $74,168
2025	$1,221.00	$72,714 Land $72,714
2023	$1,179.00 (+1.81%)	$69,892 Land $69,892
2022	$1,158.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 18938 Prospect Dr in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective February 15, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	1 in force

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

Wildfire risk around 18938 Prospect Dr is high, ranking above 71% of the US, with a 0.3% annual chance of wildfire.

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

Wildfire Risk	High above 71% of the US · above 46% of California
Wildfire Likelihood	0.3% annual chance
Exposure	Direct burnable vegetation

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 System	DIAMOND A MUTUAL WATER COMPANY private · serves 640 people · EPA ID CA4900562
Water Source	Groundwater
Last State Inspection	Nov 2023
Lead	Under 1 ppb (2024–2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	Lead service line inventory currently in violation since Oct 2024
Monitoring and Reporting	1 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 38 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Starlink Satellite	280 / 30
AT&T DSL	25 / 5

Cell Coverage

5G and 4G LTE (outdoors only)

Nearby Properties on Prospect Dr

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