370 Walnut St, Costa Mesa, CA 92627 Property Records

Orange County property record for 370 Walnut St, Costa Mesa, CA 92627

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,809 sqft · built 1955
Lot Size0.147 acres (6,420 sqft)
Owner2 Company Names on Record
Tax Bill$1,930 (2025)
Deeds & MortgagesSep 2020 Mortgage
Flood ZoneZone X (minimal risk)
APN426-303-17

Property Details

APN / Parcel Number

Primary APN426-303-17

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms6 Rooms
Stories3 Stories
Building Area1,809 sqft Living Area

Exterior

Year BuiltBuilt 1955
Effective Year BuiltEffective 1955
Lot Area6,420 sqft (0.147 acres)
Garage Area360 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Heating SystemHVAC

Location & Zoning

Street Address370 WALNUT ST
CityCOSTA MESA
StateCA
Zip92627-2370
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionN TR 2497 BLK LOT 4
Legal SubdivisionCOSTA MESA WATER DISTRICT
Legal Tract2497
Legal Lot Number4
JurisdictionORANGE CA
Township / Civil DivisionCENTRAL COAST
Census Block Group3
Census Block3004
Census Tract63202

Owner

Source: Orange County records, as of August 26, 2026

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

Owner of Record2 Company Names on Record
Mailing Address2411 CAMINO BUCANERO, SAN CLEMENTE, CA 92673-3611
Owner TypeCompany
VestingTrust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last Transfer DateNov 12, 2024
Transfer Doc0000300351
Record UpdatedOct 29, 2026

September 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionORANGE CA
Recording DateSep 10, 2020
Property Address370 WALNUT ST, COSTA MESA, CA 92627-2370
Document Number0000482222
Instrument DateJul 13, 2020
Instrument482222
Transaction TypeTransfer
Record UpdatedSep 21, 2020
Title CompanySPRUCE LAND SERVICES LLC, SPRUCE LAND SVCS LLC

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants with Right of Survivorship
Address370 WALNUT ST COSTA MESA CA 926272370, COSTA MESA, CA 92627-2370

Mortgage

Document Number482223
DateSep 10, 2020
Instrument482223
Lender
NameLOANSNAP INC
AddressCOSTA MESA, CA 92626
Agreement
AmountAmount Recorded
Term360 Months
DueSep 9, 2050

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyOrange County
MunicipalityCosta Mesa City
Unified School DistrictNewport-Mesa Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$81,934 (+2%) Land $31,600 Building $50,334
2025$1,930.00 (+11.69%)$80,328 (+4.04%) Land $30,980 Building $49,348
2023$1,728.00 (+8.75%)$77,209 Land $29,776 Building $47,433
2022$1,589.00

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

Flood

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

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies3 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

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

Wildfire RiskNot rated
no burnable land within 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 SystemMESA WATER DISTRICT
serves 110,000 people · EPA ID CA3010004
Water SourcePurchased surface water from several systems
Last State InspectionAug 2023
LeadUnder 1 ppb (2024–2026)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 819 locations within half a mile, as of December 31, 2025

ProviderMax 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
Fixed Wireless
100 / 20

May also be available: GeoLinks.

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