817 Tierney Pl, Martinez, CA 94553 Property Records

Contra Costa County property record for 817 Tierney Pl, Martinez, CA 94553

Property Summary

Property Type	Condominium
Details	4 bd · 3.5 ba · 2,073 sqft · built 2016
Lot Size	0.023 acres (987 sqft)
Owner	2 Individual Names on File
Last Sale	$775,000 (Jul 2024)
Tax Bill	$9,875 (2025)
Deeds & Mortgages	Mar 2026 Mortgage Feb 2024 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`161-590-040-2`

Property Details

APN / Parcel Number

Primary APN	`161-590-040-2`
Alternative APN	`161-590-040`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,073 sqft Living Area
1st Floor Area	790 sqft
2nd Floor Area	892 sqft
Basement Area	391 sqft

Exterior

Year Built	Built 2016
Effective Year Built	Effective 2017
Architectural Style	Condo/Apartment
Lot Area	987 sqft (0.023 acres)
Garage Type	Attached
Garage Area	474 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	817 TIERNEY PL
City	MARTINEZ
State	CA
Zip	94553-4439
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	T9025 L1 B14 U40
Legal Subdivision	VILLAGE/ARNOLD SUB 9025
Legal Tract	9025
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	4
Census Block	4014
Census Tract	320004

Owner

817 Tierney Pl, a condominium, is owned and occupied by two individuals who bought it in July 2024.

Source: Contra Costa County records, as of July 14, 2026

Owner of Record	2 Individual Names on File
Mailing Address	817 TIERNEY PL, MARTINEZ, CA 94553-4439
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Mar 9, 2026	Deed of Trust, Mortgage · FHA Mortgage PENNYMAC LOAN SERVICES LLC
Feb 29, 2024	Intrafamily Transfer, Transfer
Nov 16, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage BANK OF AMERICA NA
Oct 6, 2017	Grant Deed, Transfer · Conventional with PMI BANK OF AMERICA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 30, 2024 · Amount on File
Deed Sale	Jul 30, 2024 · Amount on File
Prior Sale	Oct 6, 2017 · Amount on File
Deed Document Number	202473249
Prior Transfer Date	Feb 14, 2024
Prior Transfer Doc	0000018878
Record Updated	Sep 20, 2026

March 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	817 TIERNEY PL, MARTINEZ, CA 94553-4439
Transaction Type	Mortgage
Record Updated	Mar 18, 2026
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	817 TIERNEY PL, MARTINEZ, CA 94553-4439

Mortgage

Document Number	0000022965
Date	Mar 9, 2026
Instrument	2026- 022965

Lender

Name	PENNYMAC LOAN SERVICES LLC
Type	Mortgage Company
Address	3043 TOWNSGATE RD # 200, WESTLAKE VILLAGE, CA 91361

Agreement

Type	FHA Mortgage
Amount	Amount on Record
Term	361 Months
Due	Apr 1, 2056

February 2024: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 29, 2024
Property Address	817 TIERNEY PL, MARTINEZ, CA 94553-4439
Document Number	0000018878
Map Reference	MB 521 PG 29-32
Instrument Date	Feb 14, 2024
Instrument	2024-018878
Transaction Type	Transfer
Record Updated	Mar 8, 2024

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	817 TIERNEY PL, MARTINEZ, CA 94553-4439

November 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 16, 2020
Property Address	817 TIERNEY PL, MARTINEZ, CA 94553-4439
Document Number	0000274619
Map Reference	MB 521 PG 29-32
Instrument Date	Nov 6, 2020
Instrument	2020-274619
Transaction Type	Transfer
Record Updated	Nov 3, 2022

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	817 TIERNEY PL, MARTINEZ, CA 94553-4439

Mortgage

Document Number	0000274620
Date	Nov 16, 2020
Instrument	2020-274620

Lender

Name	BANK OF AMERICA NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Dec 1, 2050

October 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Oct 6, 2017
Property Address	817 TIERNEY PL, MARTINEZ, CA 94553-4439
Document Number	0000183724
Instrument Date	Oct 5, 2017
Instrument	183724
Transaction Type	Transfer
Record Updated	Aug 25, 2018
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$776.60
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	817 TIERNEY PL MARTINEZ CA 945534439, MARTINEZ, CA 94553-4439

Mortgage

Document Number	183726
Date	Oct 6, 2017
Instrument	183726

Lender

Name	BANK OF AMERICA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Type	Conventional with PMI
Amount	Amount on Record
Term	360 Months
Due	Oct 5, 2047

Tax Assessment & Valuation

The 2025 property tax bill for 817 Tierney Pl was $9,875.

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$720,000 (-7.1%) Land $297,291 Building $422,709
2025	$9,875.00	$775,000 Land $320,000 Building $455,000
2023	$8,787.00 (-0.16%) Homeowner's exemption	$693,000 Land $410,000 Building $283,000
2022	$8,801.00

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

Flood

FEMA maps place 817 Tierney Pl 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

The area around 817 Tierney Pl has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire Risk	Not rated no burnable land within 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 334 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
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Astound Broadband.

Cell Coverage

5G (outdoors only) and 4G LTE

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