403 Duncan St, Santa Rosa, CA 95401 Property Records

Sonoma County property record for 403 Duncan St, Santa Rosa, CA 95401

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,310 sqft · built 1987
Lot Size	0.135 acres (5,871 sqft)
Owner	2 Company Names on File
Last Sale	$132,000 (Dec 1988)
Tax Bill	$4,338 (2025)
Deeds & Mortgages	Jan 2017 Transfer
Flood Zone	Zone X (minimal risk)
APN	`010-493-026-000`

Property Details

APN / Parcel Number

Primary APN	`010-493-026-000`
Alternative APN	`010-493-026`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	3 Rooms
Stories	1 Story
Building Area	1,310 sqft Living Area
1st Floor Area	1,310 sqft

Exterior

Year Built	Built 1987
Effective Year Built	Effective 1988
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,871 sqft (0.135 acres)
Garage Area	431 sqft

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Old Parcel Number	010-493-026
Street Address	403 DUNCAN ST
City	SANTA ROSA
State	CA
Zip	95401-5397
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	CITYSR
Legal Description	87 FM 10-493-13 PT TO RD 86-60226
Legal Subdivision	TROWBRIDGE & DOYLE
Legal Block	2
Legal Lot Number	69
Jurisdiction	SONOMA CA
Township / Civil Division	SANTA ROSA
Census Block Group	2
Census Block	2003
Census Tract	153002

Owner

Source: Sonoma County records · APN 010-493-026-000

Assessment roll updated April 13, 2026 · Last verified April 2026

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

Owner of Record	2 Company Names on File
Mailing Address	2303 CLAIBORNE CIR, SANTA ROSA, CA 95403-7640
Owner Type	Company
Vesting	Trust, Family Revocable Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Dec 29, 1988 · Amount on Record
Deed Sale	Dec 29, 1988 · Amount on Record
Deed Document Number	1988111530
Last Transfer Date	Sep 23, 2024
Transfer Doc	0000043749
Record Updated	Jun 08, 2026

January 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SONOMA CA
Recording Date	Jan 05, 2017
Property Address	403 DUNCAN ST, SANTA ROSA, CA 95401-5397
Document Number	0000001255
Instrument Date	Jan 04, 2017
Instrument	1255
Transaction Type	Transfer
Record Updated	Jan 23, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	403 DUNCAN ST SANTA ROSA CA 954015397, SANTA ROSA, CA 95401-5397

Tax Assessment & Valuation

Source: Sonoma County records · Assessment roll updated April 13, 2026 · Last verified April 2026

Property Jurisdictions

Type	Name
State	California
County	Sonoma County
Municipality	Santa Rosa City
Elementary School District	Santa Rosa Elementary School District (KG - 06)
Secondary School District	Santa Rosa High School District (07 - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value
2025	$4,338.00 (+60.61%) Homeowner's exemption	$247,685 (+4.04%) Land $84,433 Building $163,252
2023	$2,701.00 (+6.72%) Homeowner's exemption	$238,068 Land $81,155 Building $156,913
2022	$2,531.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of February 15, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	3 in force

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
AT&T Fiber · DSL · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250

May also be available: California Internet, T-Mobile USA, Verizon.

Based on FCC filings for 634 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF SANTA ROSA serves 178,452 people
Water Source	Groundwater
Last State Inspection	Oct 2023
Lead	1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.