3516 Gemini Ct, Concord, CA 94519 Property Records

Contra Costa County property record for 3516 Gemini Ct, Concord, CA 94519

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,476 sqft · built 1970
Lot Size	0.248 acres (10,800 sqft)
Owner	2 Individual Names on Record
Last Sale	$194,000 (Apr 1997)
Tax Bill	$4,420 (2025)
Deeds & Mortgages	Aug 2019 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`114-421-021-6`

Property Details

APN / Parcel Number

Primary APN	`114-421-021-6`
Alternative APN	`114-421-021`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,476 sqft Living Area
1st Floor Area	1,476 sqft

Exterior

Year Built	Built 1970
Effective Year Built	Effective 1971
Lot Area	10,800 sqft (0.248 acres)
Garage Type	Attached
Garage Area	437 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	3516 GEMINI CT
City	CONCORD
State	CA
Zip	94519-1708
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R7
Legal Description	TRACT 3834 LOT 4
Legal Subdivision	SUBDIVISION 3834
Legal Tract	3834
Legal Lot Number	4
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1000
Census Tract	331000

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	2 Individual Names on Record
Mailing Address	3516 GEMINI CT, CONCORD, CA 94519-1708
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 17, 1997 · Amount on Record
Deed Sale	Apr 17, 1997 · Amount on Record
Deed Document Number	199763249
Record Updated	Sep 20, 2026

August 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	3516 GEMINI CT, CONCORD, CA 94519-1708
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	AMROCK TITLE CALIFORNIA INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000123546
Date	Aug 6, 2019
Instrument	2019-123546

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2049

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		$322,255 (+2%) Land $134,547 Building $187,708
2025	$4,420.00 (+5.26%) Homeowner's exemption	$315,937 (+4.04%) Land $131,909 Building $184,028
2023	$4,199.00 (+1.77%) Homeowner's exemption	$303,671 Land $126,788 Building $176,883
2022	$4,126.00

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; 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 99.1% of the US · lower than 99.2% 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 657 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20

May also be available: T-Mobile.

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