4065 Nelson Ave, Concord, CA 94520 Property Records

Contra Costa County property record for 4065 Nelson Ave, Concord, CA 94520 · Last verified July 2026

Property Highlights

Property Type	Industrial > Light Industrial (10% Improved Office Space; Machine Shop)
Bathrooms	3 Baths
Year Built	Built 1990
Square Footage	22,340 sqft Gross Area
Lot Size	3.52 acres
Tax Bill	$38,895.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`159-430-026-9`
Alternative APN	`159-430-026`

Interior

Full Baths	3 Baths
Building Area	22,340 sqft Gross Area
1st Floor	22,340 sqft 1st Floor
Stories	1 Stories

Exterior

Year Built	Built 1989
Effective Year Built	Effective 1990
Exterior Material	Precast Concrete Panel Exterior
Construction Type	Concrete Construction
Roof Construction	Flat Roof Construction
Roof Material	Roll Tar & Gravel Roof
Lot Area	153,679 sqft

Utilities and HVAC

Cooling System	Central Cooling
Heating System	Forced Air with Air Conditioning Heating

Location & Zoning

Street Address	4065 NELSON AVE
City	CONCORD
State	CA
Zip	94520-1215
Property Usage	Industrial Property Usage
Type	Industrial > Light Industrial (10% Improved Office Space; Machine Shop)
Legal Description	TRACT 6559 POR LOTS 10 & 11
Legal Subdivision	SUBDIVISION MAP 6559
Legal Tract	6559
Legal Lot Number	10,11
Jurisdiction	CONTRA COSTA CA
Minor Civil Division	CENTRAL CONTRA COSTA
Census Blockgroup	1
Census Block	1031
Census Tract	315000

Owner

Source: Contra Costa County records · APN 159-430-026-9

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	Company Name on File
Mailing Address	PO BOX 1909, LAFAYETTE, CA 94549-9009
Owner Type	Owner is a Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Transfer Date	Apr 21, 2011
Transfer Doc	0000085861
Record Refreshed	Sep 20, 2026

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

Year	Tax Bill	Assessed Value
2026		$3,756,824 (+2%) Land $750,027 Building $3,006,797
2025	$38,895.00 (+9.84%) Additional exemption filed	$3,683,162 (+4.04%) Land $735,321 Building $2,947,841
2023	$35,409.00 (+4.27%) Additional exemption filed	$3,540,142 Land $706,768 Building $2,833,374
2022	$33,960.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Flood Hazard	Minimal
500-Year Floodplain	No
Special Flood Hazard Area	No

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.