210 Mason Cir, Concord, CA 94520 Property Records

Contra Costa County property record for 210 Mason Cir, Concord, CA 94520

Property Summary

Property Type	Industrial Park
Details	13,440 sqft · built 1984
Lot Size	2.93 acres (128,066 sqft)
Owner	Company Name on Record
Last Sale	$904,500 (Jun 2004)
Tax Bill	$36,854 (2025)
Deeds & Mortgages	May 2020 Mortgage May 2020 Transfer
Flood Zone	Zone X (minimal risk)
APN	`159-070-036-3`

Property Details

APN / Parcel Number

Primary APN	`159-070-036-3`
Alternative APN	`159-070-036`

Interior

Stories	1 Story
Building Area	13,440 sqft Gross Area
1st Floor Area	13,440 sqft

Exterior

Year Built	Built 1984
Effective Year Built	Effective 1986
Lot Area	128,066 sqft

Location & Zoning

Street Address	210 MASON CIR
City	CONCORD
State	CA
Zip	94520-1202
Property Category	Industrial
Property Type	Industrial > Industrial Park
Legal Description	TRACT 5994 LOT 15 & PORS 14 & 16 EX MR
Legal Subdivision	SUBDIVISION 5994
Legal Tract	5994
Legal Lot Number	15
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1082
Census Tract	315000

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 Record	Company Name on Record
Mailing Address	178 MAGELLAN ST, THOUSAND OAKS, CA 91360-2628
Owner Type	Company

Deeds, Mortgages & Sale History

Date	Document
May 28, 2020	Deed of Trust, Mortgage · Commercial Mortgage WELLS FARGO BANK NA
May 13, 2020	Quit Claim Deed, Transfer FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INSURANCE

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 4, 2004 · Amount on Record
Deed Sale	Jun 4, 2004 · Amount on Record
Prior Sale	Dec 15, 2000 · Amount on Record
Deed Document Number	2004214315
Record Updated	Sep 20, 2026

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	210 MASON CIR, CONCORD, CA 94520-1202
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIRST AMER TTL INS NATL COM

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000101557
Date	May 28, 2020
Instrument	2020-101557

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	DENVER, CO 80203

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

May 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	May 13, 2020
Property Address	210 MASON CIR, CONCORD, CA 94520-1202
Document Number	0000091100
Instrument Date	May 8, 2020
Instrument	91100
Transaction Type	Transfer
Record Updated	May 21, 2020
Title Company	FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INSURANCE

Transaction

Tax	$0.00
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	1020 AILEEN ST LAFAYETTE CA 945494010, LAFAYETTE, CA 94549-4010

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		$2,881,776 (+2%) Land $1,719,176 Building $1,162,600
2025	$36,854.00 (+8.61%)	$2,825,271 (+4.04%) Land $1,685,467 Building $1,139,804
2023	$33,932.00 (-0.02%)	$2,715,564 Land $1,620,019 Building $1,095,545
2022	$33,938.00

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
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 10 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	10 in force
Nearby Flood Claims	1 (1993)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jan 1993 · Severe Winter Storm, Mud & Land Slides, & Flooding

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	Low lower than 98% of the US · lower than 98.4% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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 36 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50
Unwired Fixed Wireless	300 / 25
AT&T Fixed Wireless	100 / 20

May also be available: T-Mobile.

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