3212 Mount Diablo St, Concord, CA 94518 Property Records

Contra Costa County property record for 3212 Mount Diablo St, Concord, CA 94518

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,167 sqft · built 1954
Lot Size	0.19 acres (8,280 sqft)
Owner	Individual Name on File
Last Sale	$240,000 (Oct 2011)
Tax Bill	$7,900 (2025)
Deeds & Mortgages	Jul 2020 Mortgage Mar 2017 Transfer
Flood Zone	Zone X (minimal risk)
APN	`105-172-057-9`

Property Details

APN / Parcel Number

Primary APN	`105-172-057-9`
Alternative APN	`105-172-057`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,167 sqft Living Area
1st Floor Area	1,167 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1954
Effective Year Built	Effective 1967
Architectural Style	Bungalow
Lot Area	8,280 sqft (0.19 acres)
Garage Type	Attached
Garage Area	360 sqft
Parking Spaces	1 Parking Space
Porch	Porch

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Street Address	3212 MOUNT DIABLO ST
City	CONCORD
State	CA
Zip	94518-1148
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R8
Legal Description	HUNTLEIGH PARK #3 LOT 56
Legal Subdivision	HUNTLEIGH PARK 03
Legal Lot Number	56
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2000
Census Tract	335000

Owner

Source: Contra Costa County records, as of July 14, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Individual Name on File
Mailing Address	3212 MOUNT DIABLO ST, CONCORD, CA 94518-1148
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jul 9, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage PLATINUM HOME MORTGAGE CORP
Mar 23, 2017	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 5, 2011 · Amount on File
Deed Sale	Oct 5, 2011 · Amount on File
Prior Sale	Mar 18, 2011 · Amount on File
Deed Document Number	2011205831
Last Transfer Date	Jun 2, 2020
Transfer Doc	0000136217
Record Updated	Oct 29, 2026

July 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 9, 2020
Property Address	3212 MOUNT DIABLO ST, CONCORD, CA 94518-1148
Document Number	0000136217
Map Reference	MB 48 PG 40
Instrument Date	Jun 2, 2020
Instrument	2020-136217
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	NORTH AMERICAN TITLE CO INC

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3212 MOUNT DIABLO ST, CONCORD, CA 94518-1148

Mortgage

Document Number	0000136218
Date	Jul 9, 2020
Instrument	2020-136218

Lender

Name	PLATINUM HOME MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Aug 1, 2050

March 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 23, 2017
Property Address	3212 MOUNT DIABLO ST, CONCORD, CA 94518-1148
Document Number	0000050626
Instrument Date	Mar 8, 2017
Instrument	50626
Transaction Type	Transfer
Record Updated	Mar 29, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	3212 MOUNT DIABLO ST CONCORD CA 945181148, CONCORD, CA 94518-1148

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Concord City
Unified School District	Mount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$643,676 (+2%) Land $463,713 Building $179,963
2025	$7,900.00 (+4.62%) Homeowner's exemption	$631,056 (+4.04%) Land $454,621 Building $176,435
2023	$7,551.00 (+1.37%) Homeowner's exemption	$606,553 Land $436,968 Building $169,585
2022	$7,449.00

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 Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AO, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	6 in force
Nearby Flood Claims	3 (1980–1998)
Most Recent Claim	Mar 1998 · Severe Winter Storms And Flooding
Claims by Event	Severe Winter Storms And Flooding, Mar 1998 · 2 claims

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 Risk	Not 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 System	CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003
Water Source	Surface water
Last State Inspection	Jan 2022
Lead	Under 1 ppb (2026–2028) 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 672 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
AT&T Fiber · DSL	5,000 / 5,000
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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