509 28th St, Richmond, CA 94804 Property Records

Contra Costa County property record for 509 28th St, Richmond, CA 94804

Property Summary

Property Type	Condominium
Details	3 bd · 2 ba · 1,116 sqft · built 1982
Lot Size	0.027 acres (1,161 sqft)
Owner	Trust Name on File
Tax Bill	$3,717 (2025)
Deeds & Mortgages	Oct 2023 Mortgage Mar 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`515-430-001-5`

Property Details

APN / Parcel Number

Primary APN	`515-430-001-5`
Alternative APN	`515-430-001`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,116 sqft Living Area
1st Floor Area	1,116 sqft

Exterior

Year Built	Built 1982
Effective Year Built	Effective 1983
Architectural Style	Condo/Apartment
Lot Area	1,161 sqft (0.027 acres)

Location & Zoning

Street Address	509 28TH ST
City	RICHMOND
State	CA
Zip	94804-1515
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	T102P19L B U0001N
Legal Subdivision	RICHMOND ESTATES 09
Legal Tract	102PM19
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	WEST CONTRA COSTA
Census Block Group	3
Census Block	3000
Census Tract	374000

Owner

509 28th St, a condominium, is owner-occupied and held in a trust since October 2023.

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

Owner of Record	Trust Name on File
Mailing Address	509 28TH ST, RICHMOND, CA 94804-1515
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

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
Oct 25, 2023	Intrafamily Transfer, Transfer · Conventional Mortgage MASON MCDUFFIE MORTGAGE CORP
Mar 25, 2020	Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Oct 24, 2023
Transfer Doc	0000107322
Record Updated	Sep 20, 2026

October 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Oct 25, 2023
Property Address	509 28TH ST, RICHMOND, CA 94804-1515
Document Number	0000107322
Map Reference	MB 11023 PG 475
Instrument Date	Oct 24, 2023
Instrument	2023-107322
Transaction Type	Transfer
Record Updated	Nov 3, 2023
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

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	Living Trust
Address	509 28TH ST, RICHMOND, CA 94804-1515

Mortgage

Document Number	0000107323
Date	Oct 25, 2023
Instrument	2023-107323

Lender

Name	MASON MCDUFFIE MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Nov 1, 2053

March 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	509 28TH ST, RICHMOND, CA 94804-1515
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIRST AMER TTL CO CONCORD

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000057626
Date	Mar 25, 2020
Instrument	2020-057626

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company
Address	PONTIAC, MI 48341

Agreement

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

Tax Assessment & Valuation

The 2025 property tax bill for 509 28th St was $3,717 with a homeowner's exemption.

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$166,248 (+2%) Land $59,724 Building $106,524
2025	$3,717.00 Homeowner's exemption	$162,989 Land $58,553 Building $104,436
2023	$3,620.00 (+2.78%) Homeowner's exemption	$156,662 Land $56,280 Building $100,382
2022	$3,522.00

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

Flood

FEMA maps place 509 28th St 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 509 28th St 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	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 788 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Etheric Networks, GeoLinks.

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