489 W Sierra Ave, Cotati, CA 94931 Property Records

Sonoma County property record for 489 W Sierra Ave, Cotati, CA 94931

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,219 sqft · built 1948
Lot Size	0.218 acres (9,490 sqft)
Owner	Individual Name on Record
Last Sale	$298,000 (Apr 2010)
Tax Bill	$4,973 (2025)
Deeds & Mortgages	Feb 2022 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`144-340-015-000`

Property Details

APN / Parcel Number

Primary APN	`144-340-015-000`
Alternative APN	`144-340-015`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	3 Rooms
Stories	1 Story
Building Area	1,219 sqft Living Area
1st Floor Area	1,219 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1948
Effective Year Built	Effective 1956
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	9,490 sqft (0.218 acres)
Garage Type	Detached
Garage Area	286 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Old Parcel Number	144-340-015
Street Address	489 W SIERRA AVE
City	COTATI
State	CA
Zip	94931-4288
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	CITYCO
Legal Description	1972 FORM 13 PT TO 16 17 18 & RD 2569-882 2562-478
Legal Subdivision	CITY OF COTATI
Legal Block	3
Jurisdiction	SONOMA CA
Township / Civil Division	PETALUMA
Census Block Group	3
Census Block	3000
Census Tract	151204

Owner

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

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

Owner of Record	Individual Name on Record
Mailing Address	489 W SIERRA AVE, COTATI, CA 94931-4288
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 19, 2010 · Amount on Record
Deed Sale	Apr 19, 2010 · Amount on Record
Prior Sale	Dec 3, 2009 · Amount on Record
Deed Document Number	201032159
Prior Transfer Date	Nov 19, 2009
Prior Transfer Doc	0000116586
Record Updated	Oct 29, 2026

February 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	489 W SIERRA AVE, COTATI, CA 94931-4288
Transaction Type	Mortgage
Record Updated	Mar 10, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	489 W SIERRA AVE, COTATI, CA 94931-4288

Mortgage

Document Number	0000013669
Date	Feb 25, 2022
Instrument	2022013669

Lender

Name	NATIONSTAR MORTGAGE LLC
Type	Mortgage Company
Address	COPPELL, TX 75019

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Mar 1, 2052

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Sonoma County
Municipality	Cotati City
Unified School District	Cotati-Rohnert Park Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$410,451 (+2%) Land $131,654 Building $278,797
2025	$4,973.00 (+3.09%) Homeowner's exemption	$402,404 (+4.04%) Land $129,073 Building $273,331
2023	$4,824.00 (+1.82%) Homeowner's exemption	$386,780 Land $124,062 Building $262,718
2022	$4,738.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective February 15, 2026

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

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

Wildfire Risk	Low lower than 99.1% of the US · lower than 99.2% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

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	CITY OF COTATI serves 7,290 people · EPA ID CA4910016
Water Source	Groundwater
Last State Inspection	Aug 2024
Lead	Under 1 ppb (2024–2026) 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, 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 321 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T DSL	100 / 20