270 Walnut St, Costa Mesa, CA 92627 Property Records

Orange County property record for 270 Walnut St, Costa Mesa, CA 92627

Property Summary

Property Type	Single Family Home
Details	1 bd · 1 ba · 400 sqft · built 1948
Lot Size	0.073 acres (3,190 sqft)
Owner	2 Company Names on File
Last Sale	$1,825,000 (Jan 2026)
Tax Bill	$1,347 (2025)
Deeds & Mortgages	Jan 2026 Sale
Flood Zone	Zone X (minimal risk)
APN	`426-283-19`

Property Details

APN / Parcel Number

Primary APN	`426-283-19`

Interior

Bedrooms	1 Bed
Full Baths	1 Bath
Total Rooms	3 Rooms
Stories	1 Story
Building Area	400 sqft Living Area
1st Floor Area	400 sqft

Exterior

Year Built	Built 1948
Effective Year Built	Effective 1948
Lot Area	3,190 sqft (0.073 acres)

Location & Zoning

Street Address	270 WALNUT ST
City	COSTA MESA
State	CA
Zip	92627-2242
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	N TR 767 BLK LOT 5 TR 767 LOT 5 SELY1/2
Legal Subdivision	TRACT NO. 767
Legal Tract	767
Legal Lot Number	5
Jurisdiction	ORANGE CA
Township / Civil Division	CENTRAL COAST
Census Block Group	2
Census Block	2006
Census Tract	63202

Owner

Source: Orange County records · APN 426-283-19

Assessment roll updated August 4, 2026 · Last verified August 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	270 WALNUT ST, COSTA MESA, CA 92627-2242
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Revocable Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jan 12, 2026 · Amount on Record
Deed Sale	Jan 12, 2026 · Amount on Record
Deed Document Number	20267151
Prior Transfer Date	Aug 25, 2000
Prior Transfer Doc	0000507457
Record Updated	Sep 20, 2026

January 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ORANGE CA
Recording Date	Jan 12, 2026
Property Address	270 WALNUT ST, COSTA MESA, CA 92627-2242
Document Number	0000007151
Map Reference	MB 27 PG 29
Instrument Date	Dec 19, 2025
Instrument	2026000007151
Transaction Type	Transfer
Record Updated	Jan 26, 2026
Title Company	HOMEFIRST TITLE COMPANY, HOMELIGHT T&E CO

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	10764 FLAXTON ST, CULVER CITY, CA 90230-5403

Tax Assessment & Valuation

Source: Orange County records · Assessment roll updated August 4, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	California
County	Orange County
Municipality	Costa Mesa City
Unified School District	Newport-Mesa Unified School District (KG - 12)

Tax Bill & Assessment History

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.

Year	Tax Bill	Assessed Value
2026		$25,125 (+2%) Land $13,573 Building $11,552
2025	$1,347.00 (+30.14%)	$24,633 (+4.04%) Land $13,307 Building $11,326
2023	$1,035.00 (+4.86%)	$23,677 Land $12,790 Building $10,887
2022	$987.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 27, 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

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

Values are read at the parcel center point; 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)
AT&T Fiber · DSL	5,000 / 5,000
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
T-Mobile USA Fixed Wireless	100 / 20

May also be available: California Internet.

Based on FCC filings for 819 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	MESA WATER DISTRICT serves 110,000 people
Water Source	Purchased surface water from several systems
Last State Inspection	Aug 2023
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 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.