2345 Mount Diablo St, Concord, CA 94520 Property Records

Contra Costa County property record for 2345 Mount Diablo St, Concord, CA 94520

Property Summary

Property Type	Single Family Home
Details	7 bd · 5 ba · 5,761 sqft · built 1966
Lot Size	0.739 acres (32,200 sqft)
Owner	Individual Name on Record
Last Sale	$2,000,000 (Jun 2011)
Tax Bill	$30,295 (2025)
Deeds & Mortgages	Nov 2025 Transfer Nov 2025 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`195-300-023-7`

Property Details

APN / Parcel Number

Primary APN	`195-300-023-7`
Alternative APN	`195-300-023`

Interior

Bedrooms	7 Beds
Full Baths	5 Baths
Total Rooms	14 Rooms
Stories	2 Stories
Building Area	5,761 sqft Living Area
1st Floor Area	3,548 sqft
2nd Floor Area	2,213 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1966
Effective Year Built	Effective 1993
Architectural Style	Contemporary
Lot Area	32,200 sqft (0.739 acres)
Garage Type	Attached
Garage Area	782 sqft
Parking Spaces	3 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Street Address	2345 MOUNT DIABLO SCENIC BLVD
City	DIABLO
State	CA
Zip	94528
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R20
Legal Description	PCL MAP 65 PG 33 PCL A
Legal Subdivision	PM 65 33
Legal Tract	65PM33
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2002
Census Tract	346205

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 Record
Mailing Address	2345 MOUNT DIABLO SCENIC BLVD, DIABLO, CA 94528
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Sole Owner

Deeds, Mortgages & Sale History

Date	Document
Nov 6, 2025	Intrafamily Transfer, Transfer
Nov 6, 2025	Intrafamily Transfer, Transfer
Nov 6, 2025	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 10, 2011 · Amount on Record
Deed Sale	Jun 10, 2011 · Amount on Record
Deed Document Number	2011115424
Last Transfer Date	Oct 21, 2025
Transfer Doc	0000125513
Record Updated	Sep 20, 2026

November 2025: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 6, 2025
Property Address	2345 MOUNT DIABLO ST, CONCORD, CA 94520
Document Number	0000125513
Map Reference	MB 65 PG 33
Instrument Date	Oct 21, 2025
Instrument	2025- 125513
Transaction Type	Transfer
Record Updated	Nov 19, 2025

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name
Address	2345 MOUNT DIABLO SCENIC BOULEVARD, DIABLO, CA 94528

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	2345 MOUNT DIABLO SCENIC BOULEVARD, DIABLO, CA 94528

November 2025: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 6, 2025
Property Address	2345 MOUNT DIABLO ST, CONCORD, CA 94520
Document Number	0000125514
Map Reference	MB 65 PG 33
Instrument Date	Oct 21, 2025
Instrument	2025- 125514
Transaction Type	Transfer
Record Updated	Nov 19, 2025

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	2345 MOUNT DIABLO SCENIC BOULEVARD, DIABLO, CA 94528

November 2025: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 6, 2025
Property Address	2345 MOUNT DIABLO ST, CONCORD, CA 94520
Document Number	0000125515
Map Reference	MB 65 PG 33
Instrument Date	Oct 7, 2025
Instrument	2025- 125515
Transaction Type	Transfer
Record Updated	Nov 19, 2025

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2345 MT DIABLO SCENIC BLVD, DIABLO, CA 94528

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Unified School District	San Ramon Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$2,685,721 (+2%) Land $1,306,797 Building $1,378,924
2025	$30,295.00 (+3.67%)	$2,633,061 (+4.04%) Land $1,281,174 Building $1,351,887
2023	$29,223.00 (+0.8%)	$2,530,818 Land $1,231,425 Building $1,299,393
2022	$28,991.00

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 A, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	6 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 Risk	High above 79% of the US · above 56% of California
Wildfire Likelihood	0.6% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 69 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
AT&T DSL	100 / 20

May also be available: Etheric Networks, T-Mobile, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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