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1229 Mountain Side Ct, Concord, CA 94521 Property Records

Contra Costa County property record for 1229 Mountain Side Ct, Concord, CA 94521

Property Summary

Property TypeSingle Family Home
Details5 bd · 3 ba · 2,923 sqft · built 2003
Lot Size0.156 acres (6,772 sqft)
Owner2 Company Names on Record
Last Sale$655,000 (Oct 2003)
Tax Bill$11,129 (2025)
Deeds & MortgagesDec 2020 Mortgage
Jan 2022 Mortgage
Flood ZoneZone X (minimal risk)
APN135-400-011-7

Property Details

APN / Parcel Number

Primary APN135-400-011-7
Alternative APN
  • 135-400-011

Interior

Bedrooms5 Beds
Full Baths3 Baths
Total Rooms11 Rooms
Stories2 Stories
Building Area2,923 sqft Living Area
1st Floor Area1,476 sqft
2nd Floor Area1,447 sqft

Exterior

Year BuiltBuilt 2003
Effective Year BuiltEffective 2003
Architectural StyleCluster
Lot Area6,772 sqft (0.156 acres)
Garage TypeAttached
Garage Area648 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral

Location & Zoning

Street Address1229 MOUNTAIN SIDE CT
CityCONCORD
StateCA
Zip94521-5508
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT8437 L127
Legal SubdivisionSUBDIVISION 8437
Legal Tract8437
Legal Lot Number127
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group2
Census Block2008
Census Tract355309

Owner

Source: Contra Costa County records, as of July 14, 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 Address1229 MOUNTAIN SIDE CT, CONCORD, CA 94521-5508
OccupancyOwner Occupied
Owner TypeCompany
VestingLife Tenant

Deeds, Mortgages & Sale History

DateDocument
Dec 4, 2020Deed of Trust, Mortgage · Conventional Mortgage
BANK OF AMERICA NA
Jan 3, 2022Deed of Trust, Mortgage · Commercial Mortgage
MICHAEL J WILLIAMS ETUX

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleOct 7, 2003 · Amount on Record
Deed SaleOct 7, 2003 · Amount on Record
Deed Document Number2003501173
Last Transfer DateJul 31, 2024
Transfer Doc0000004294
Record UpdatedSep 20, 2026

December 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address1229 MOUNTAIN SIDE CT, CONCORD, CA 94521-5508
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanySERVICELINK

Transferred To (Grantee/Buyer)

NameVerified Name
Address1229 MOUNTAIN SIDE CT, CONCORD, CA 94521-5508

Mortgage

Document Number0000303091
DateDec 4, 2020
Instrument2020-303091
Lender
NameBANK OF AMERICA NA
TypeBank
AddressCHARLOTTE, NC 28255
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueDec 1, 2050

January 2022: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address1229 MOUNTAIN SIDE CT, CONCORD, CA 94521-5508
Transaction TypeMortgage
Record UpdatedNov 3, 2022

Transferred To (Grantee/Buyer)

NameVerified Name
Address1229 MOUNTAIN SIDE CT, CONCORD, CA 94521-5508

Mortgage

Document Number0000000225
DateJan 3, 2022
Instrument2022-000225
Lender
NameMICHAEL J WILLIAMS ETUX
TypePrivate Party
Address18376 SHERWOOD CT, CASTRO VALLEY, CA 94546
Agreement
TypeCommercial Mortgage
AmountAmount Recorded

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$942,627 (+2%) Land $391,551 Building $551,076
2025$11,129.00 (+4.39%) Homeowner's exemption$924,145 (+4.04%) Land $383,874 Building $540,271
2023$10,661.00 (+1.24%) Homeowner's exemption$888,262 Land $368,969 Building $519,293
2022$10,530.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 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
Community Rating SystemClass 7 (15% premium discount)
Nearby Flood Policies1 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 RiskModerate
above 62% of the US · lower than 62% of California
Wildfire Likelihood0.2% annual chance
ExposureIndirect
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 SystemCONTRA COSTA WATER DISTRICT
serves 210,500 people · EPA ID CA0710003
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, 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 376 locations within half a mile, as of December 31, 2025

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

May also be available: AT&T.

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