1657 Observation Ct, Antioch, CA 94531 Property Records

Contra Costa County property record for 1657 Observation Ct, Antioch, CA 94531

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,345 sqft · built 2002
Lot Size	0.29 acres (12,616 sqft)
Owner	Trust Name on File
Last Sale	$520,000 (Jun 2017)
Tax Bill	$7,128 (2025)
Deeds & Mortgages	Jun 2018 Transfer Sep 2017 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`055-690-012-4`

Property Details

APN / Parcel Number

Primary APN	`055-690-012-4`
Alternative APN	`055-690-012`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,345 sqft Living Area
1st Floor Area	2,345 sqft

Exterior

Year Built	Built 2002
Effective Year Built	Effective 2002
Lot Area	12,616 sqft (0.29 acres)
Garage Type	Attached
Garage Area	591 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	1657 OBSERVATION CT
City	ANTIOCH
State	CA
Zip	94531-9132
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T8525 L1055
Legal Subdivision	SUBDIVISION 8525
Legal Tract	8525
Legal Lot Number	1055
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	TASSAJARA
Census Block Group	2
Census Block	2003
Census Tract	355119

Owner

1657 Observation Ct is held in a trust since June 2018.

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	Trust Name on File
Mailing Address	310 STANFORD AVE, FREMONT, CA 94539-6095
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Jun 20, 2018	Quit Claim Deed, Transfer Quitclaim
Sep 20, 2017	Correction Deed · Conventional Mortgage PROVIDENT FUNDING ASSOCIATES LP
Jun 26, 2017	Affidavit of Death, Transfer FIDELITY NATIONAL TITLE
Jun 26, 2017	Grant Deed, Transfer FIDELITY NATIONAL TITLE

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 26, 2017 · Amount on File
Deed Sale	Jun 26, 2017 · Amount on File
Prior Sale	Sep 13, 2002 · Amount on File
Deed Document Number	2017113582
Last Transfer Date	Jun 1, 2018
Transfer Doc	0000097748
Record Updated	Oct 29, 2026

June 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 20, 2018
Property Address	1657 OBSERVATION CT, ANTIOCH, CA 94531-9132
Document Number	0000097748
Instrument Date	Jun 1, 2018
Instrument	97748
Transaction Type	Transfer
Record Updated	Jun 27, 2018

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	310 STANFORD AVE FREMONT CA 945396095, FREMONT, CA 94539-6095

September 2017: Correction Deed

Document Type	Correction Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Sep 20, 2017
Property Address	1657 OBSERVATION CT, ANTIOCH, CA 94531-9132
Document Number	0000171549
Map Reference	MB434 PG10
Instrument Date	Aug 31, 2017
Instrument	2017-171549
Record Updated	Nov 3, 2022
Title Company	CHICAGO TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	310 STANFORD AVE, FREMONT, CA 94539-6095

Mortgage

Document Number	0000171550
Date	Sep 20, 2017
Instrument	2017-171550

Lender

Name	PROVIDENT FUNDING ASSOCIATES LP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2047

June 2017: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 26, 2017
Property Address	1657 OBSERVATION CT, ANTIOCH, CA 94531-9132
Document Number	0000113581
Instrument Date	Jun 23, 2017
Instrument	113581
Transaction Type	Transfer
Record Updated	Jul 7, 2017
Title Company	FIDELITY NATIONAL TITLE

Transaction

Tax	$0.00
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	480 CHESAPEAKE TER BRENTWOOD CA 945132668, BRENTWOOD, CA 94513-2668

June 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 26, 2017
Property Address	1657 OBSERVATION CT, ANTIOCH, CA 94531-9132
Document Number	0000113582
Instrument Date	Jun 22, 2017
Instrument	113582
Transaction Type	Transfer
Record Updated	Jul 7, 2017
Title Company	FIDELITY NATIONAL TITLE

Transaction

Amount	Amount on Record
Tax	$572.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	310 STANFORD AVE FREMONT CA 945396095, FREMONT, CA 94539-6095

Tax Assessment & Valuation

The 2025 property tax bill for 1657 Observation Ct was $7,128.

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

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Antioch City
Unified School District	Antioch Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$615,567 (+2%) Land $169,280 Building $446,287
2025	$7,128.00	$603,498 Land $165,961 Building $437,537
2023	$6,727.00 (+1.57%)	$580,065 Land $159,517 Building $420,548
2022	$6,623.00

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

Flood

FEMA maps place 1657 Observation Ct in Zone X, an area of minimal flood risk.

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

Wildfire risk around 1657 Observation Ct is moderate, ranking above 51% of the US, with a 0.1% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Moderate above 51% of the US · lower than 69% of California
Wildfire Likelihood	0.1% 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	CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001
Water Source	Surface water
Last State Inspection	Jan 2024
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 611 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL	5,000 / 5,000
Xfinity Cable	2,000 / 250

May also be available: T-Mobile, Unwired.

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