10311 Mast Ave, Westminster, CA 92683 Property Records

Orange County property record for 10311 Mast Ave, Westminster, CA 92683

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,204 sqft · built 1960
Lot Size	0.138 acres (5,996 sqft)
Owner	Individual Name on File
Last Sale	$775,000 (Jun 2021)
Tax Bill	$10,419 (2025)
Deeds & Mortgages	Jun 2021 Sale & Mortgage
Flood Zone	Zone X (moderate risk)
APN	`099-561-10`

Property Details

APN / Parcel Number

Primary APN	`099-561-10`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,204 sqft Living Area
1st Floor Area	1,204 sqft

Exterior

Year Built	Built 1960
Effective Year Built	Effective 1960
Lot Area	5,996 sqft (0.138 acres)
Garage Area	430 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC
Water Source	Commercial

Location & Zoning

Street Address	10311 MAST AVE
City	WESTMINSTER
State	CA
Zip	92683-5811
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	N TR 3003 BLK LOT 19
Legal Subdivision	TRACT NO 3003
Legal Tract	3003
Legal Lot Number	19
Jurisdiction	ORANGE CA
Township / Civil Division	NORTH COAST
Census Block Group	4
Census Block	4000
Census Tract	88904

Owner

10311 Mast Ave is owned and occupied by an individual who bought it in June 2021.

Source: Orange County records, as of August 4, 2026

Owner of Record	Individual Name on File
Mailing Address	10311 MAST AVE, WESTMINSTER, CA 92683-5811
Occupancy	Owner Occupied
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

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 24, 2021 · Amount on File
Deed Sale	Jun 24, 2021 · Amount on File
Prior Sale	Aug 15, 2002 · Amount on File
Deed Document Number	2021415481
Prior Transfer Date	Sep 4, 2003
Prior Transfer Doc	0001123137
Record Updated	Oct 29, 2026

June 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ORANGE CA
Recording Date	Jun 24, 2021
Property Address	10311 MAST AVE, WESTMINSTER, CA 92683-5811
Document Number	0000415481
Map Reference	MB 129 PG 21-26
Instrument Date	Jun 2, 2021
Instrument	2021000415481
Transaction Type	Transfer
Record Updated	Jul 7, 2021
Title Company	LAWYERS TITLE INSURANCE AGENCY, LAWYERS TITLE INSURANCE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Notice of Default Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	10311 MAST AVE, WESTMINSTER, CA 92683-5811
Investor	Possibly a Property Investor

Mortgage

Document Number	0000415482
Date	Jun 24, 2021
Instrument	2021000415482

Lender

Name	NEW WAVE LENDING GROUP INC
Type	Non-Lending Institution

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2051

Tax Assessment & Valuation

The 2025 property tax bill for 10311 Mast Ave was $10,419 with a homeowner's exemption.

Source: Orange County assessment roll, as of August 4, 2026

Property Jurisdictions

Type	Name
State	California
County	Orange County
Municipality	Westminster City
Unified School District	Garden Grove Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$910,511 (+2%) Land $784,326 Building $126,185
2025	$10,419.00 Homeowner's exemption	$892,658 Land $768,947 Building $123,711
2023	$9,460.00 (+2.2%) Homeowner's exemption	$806,310 Land $739,088 Building $67,222
2022	$9,256.00

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

Flood

FEMA maps place 10311 Mast Ave in Zone X, an area of moderate flood risk, though there have been 3 flood claims nearby since 1995.

Source: FEMA National Flood Hazard Layer, effective September 27, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	3 in force
Nearby Flood Claims	3 (1995–1998)
Most Recent Claim	Sep 1998 · rainfall accumulation

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 10311 Mast Ave is low, with less than a 0.01% annual chance of 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 WESTMINSTER serves 93,591 people · EPA ID CA3010064
Water Source	Purchased surface water from several systems
Last State Inspection	May 2025
Lead	5 ppb (2022–2024) 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 789 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Spectrum Cable	1,000 / 1,000
Verizon Fixed Wireless	1,000 / 75
Cosmo Network Solutions Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks.

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