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1223 Mountain Side Ct, Concord, CA 94521 Property Records

Contra Costa County property record for 1223 Mountain Side Ct, Concord, CA 94521

Property Summary

Property TypeSingle Family Home
Details5 bd · 3.5 ba · 3,358 sqft · built 2002
Lot Size0.168 acres (7,336 sqft)
Owner2 Company Names on File
Last Sale$655,000 (Aug 2012)
Tax Bill$9,831 (2025)
Deeds & MortgagesNov 2021 Mortgage
May 2017 Transfer
Flood ZoneZone X (minimal risk)
APN135-400-014-1

Property Details

APN / Parcel Number

Primary APN135-400-014-1
Alternative APN
  • 135-400-014

Interior

Bedrooms5 Beds
Full Baths3.5 Baths
Half Baths1 Half Bath
Total Rooms12 Rooms
Stories2 Stories
Building Area3,358 sqft Living Area
1st Floor Area1,693 sqft
2nd Floor Area1,665 sqft

Exterior

Year BuiltBuilt 2002
Effective Year BuiltEffective 2002
Architectural StyleCluster
Lot Area7,336 sqft (0.168 acres)
Garage TypeAttached
Garage Area662 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral

Location & Zoning

Street Address1223 MOUNTAIN SIDE CT
CityCONCORD
StateCA
Zip94521-5508
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeA-2
Legal DescriptionT8437 L130
Legal SubdivisionSUBDIVISION 8437
Legal Tract8437
Legal Lot Number130
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group2
Census Block2008
Census Tract355309

Owner

Source: Contra Costa County assessment roll, APN 135-400-014-1, as of July 14, 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 Record2 Company Names on File
Mailing Address1223 MOUNTAIN SIDE CT, CONCORD, CA 94521-5508
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Nov 09, 2021Intrafamily Transfer, Transfer · Conventional Mortgage
ALLY BANK
May 05, 2017Quit Claim Deed, Transfer
Quitclaim

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleAug 17, 2012 · Amount on Record
Deed SaleAug 17, 2012 · Amount on Record
Prior SaleDec 31, 2002 · Amount on Record
Deed Document Number2012198777
Last Transfer DateNov 03, 2021
Transfer Doc0000311468
Record UpdatedSep 20, 2026

November 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateNov 09, 2021
Property Address1223 MOUNTAIN SIDE CT, CONCORD, CA 94521-5508
Document Number0000311470
Map ReferenceMB 438 PG 15
Instrument DateNov 03, 2021
Instrument2021-311470
Transaction TypeTransfer
Record UpdatedJun 07, 2023
Title CompanyMORTGAGE CONNECT LP

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipFamily Trust
Address1223 MOUNTAIN SIDE CT, CONCORD, CA 94521-5508

Mortgage

Document Number0000311469
DateNov 09, 2021
Instrument2021-311469
Lender
NameALLY BANK
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term181 Months
DueDec 01, 2036

May 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateMay 05, 2017
Property Address1223 MOUNTAIN SIDE CT, CONCORD, CA 94521-5508
Document Number0000078467
Instrument DateApr 25, 2017
Instrument78467
Transaction TypeTransfer
Record UpdatedMay 15, 2017

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address1223 MOUNTAIN SIDE CT CONCORD CA 945215508, CONCORD, CA 94521-5508

Tax Assessment & Valuation

Source: Contra Costa County assessment roll as of July 14, 2026 · Last verified August 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityConcord City
Unified School DistrictMount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

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

YearTax BillAssessed Value
2026$822,702 (+2%) Land $301,445 Building $521,257
2025$9,831.00 (+4.46%) Homeowner's exemption$806,572 (+4.04%) Land $295,535 Building $511,037
2023$9,411.00 (+1.29%) Homeowner's exemption$775,254 Land $284,060 Building $491,194
2022$9,291.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), as of October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133553092, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 7 (15% premium discount)
Nearby Flood Policies1 in force

Wildfire

Wildfire RiskModerate
above 62% of the US · lower than 62% of California
Wildfire Likelihood0.2% annual chance
ExposureIndirect
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, 376 locations within half a mile, as of December 31, 2025 · Last verified October 2026

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Radiate Holdings
Cable		1,500 / 50
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20
T-Mobile USA
Fixed Wireless		100 / 20

May also be available: AT&T.

Drinking Water

Source: EPA Safe Drinking Water Information System, water system CA0710003, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water SystemCONTRA COSTA WATER DISTRICT
serves 210,500 people
Water SourceSurface water
Last State InspectionJan 2022
LeadUnder 1 ppb (2026–2028)
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 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.

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