3101 Mount Diablo St, Concord, CA 94518 Property Records

Contra Costa County property record for 3101 Mount Diablo St, Concord, CA 94518

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,531 sqft · built 1954
Lot Size	0.132 acres (5,733 sqft)
Owner	Individual Name on File
Last Sale	$644,000 (Jan 2023)
Tax Bill	$8,329 (2025)
Deeds & Mortgages	Jan 2023 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`105-184-001-3`

Property Details

APN / Parcel Number

Primary APN	`105-184-001-3`
Alternative APN	`105-184-001`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,531 sqft Living Area
1st Floor Area	1,531 sqft

Exterior

Year Built	Built 1954
Effective Year Built	Effective 1975
Lot Area	5,733 sqft (0.132 acres)
Garage Type	Attached
Garage Area	405 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	3101 MOUNT DIABLO ST
City	CONCORD
State	CA
Zip	94518-1145
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R6
Legal Description	WILDWOOD MANOR LOT 70
Legal Subdivision	WILDEWOOD MANOR
Legal Lot Number	70
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2006
Census Tract	335000

Owner

Source: Contra Costa County records · APN 105-184-001-3

Assessment roll updated July 14, 2026 · Last verified July 2026

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

Owner of Record	Individual Name on File
Mailing Address	3101 MOUNT DIABLO ST, CONCORD, CA 94518-1145
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jan 24, 2023 · Amount on Record
Deed Sale	Jan 24, 2023 · Amount on Record
Deed Document Number	20235967
Prior Transfer Date	Oct 24, 2001
Prior Transfer Doc	0000335322
Record Updated	Sep 20, 2026

January 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 24, 2023
Property Address	3101 MOUNT DIABLO ST, CONCORD, CA 94518-1145
Document Number	0000005967
Map Reference	MB 49 PG 37
Instrument Date	Jan 20, 2023
Instrument	2023-005967
Transaction Type	Transfer
Record Updated	Feb 02, 2023
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3101 MOUNT DIABLO ST, CONCORD, CA 94518-1145

Mortgage

Document Number	0000005968
Date	Jan 24, 2023
Instrument	2023-005968

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Feb 01, 2053

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 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

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		$683,416 (+2%) Land $466,931 Building $216,485
2025	$8,329.00 (+327.35%) Homeowner's exemption	$670,017 (+568.51%) Land $457,776 Building $212,241
2023	$1,949.00 (+2.8%) Homeowner's exemption	$100,225 Land $25,889 Building $74,336
2022	$1,896.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 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
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

Wildfire

Wildfire Risk	Not rated no burnable land 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 as of December 31, 2025 · Last verified October 2026

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
Radiate Holdings Cable	1,500 / 50
Unwired Fixed Wireless	300 / 25
T-Mobile USA Fixed Wireless	100 / 20

May also be available: Verizon.

Based on FCC filings for 672 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	CONTRA COSTA WATER DISTRICT serves 210,500 people
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 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.