Los Angeles County property record for 10203 Mattock Ave, Downey, CA 90241
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,291 sqft · built 1953 |
| Lot Size | 0.176 acres (7,644 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $530,000 (Sep 2017) |
| Tax Bill | $7,843 (2025) |
| Deeds & Mortgages | Nov 2023 Transfer Apr 2020 Mortgage + 1 more |
| Flood Zone | Zone X (reduced by levee) |
| APN | 6287-001-013 |
| Primary APN | 6287-001-013 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,291 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1953 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Hip |
| Roof Material | Wood Shingle |
| Lot Area | 7,644 sqft (0.176 acres) |
| Lot Dimensions | 115 ft deep x 67 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Floor/Wall Furnace |
| Water Source | Commercial |
| Street Address | 10203 MATTOCK AVE |
|---|---|
| City | DOWNEY |
| State | CA |
| Zip | 90241-3002 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | DOR17500* |
| Legal Description | TRACT # 17563 LOT 124 |
| Legal Subdivision | 17563 |
| Legal Tract | 17563 |
| Legal Block | 2 |
| Legal Lot Number | 124 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | DOWNEY-NORWALK |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 551001 |
10203 Mattock Ave is owned by a company that bought it in September 2017.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 10203 MATTOCK AVE, DOWNEY, CA 90241-3002 |
| Owner Type | Company |
| Vesting | Life Tenant |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Nov 28, 2023 | Intrafamily Transfer, Transfer |
| Apr 23, 2020 | Deed of Trust, Mortgage · Conventional Mortgage ILOANMASTER INC ILOANMASTER INC |
| Sep 29, 2017 | Grant Deed, Transfer · Conventional Mortgage VISION ONE MORTGAGE INC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 29, 2017 · Amount on File |
| Deed Sale | Sep 29, 2017 · Amount on File |
| Deed Document Number | 20171119447 |
| Prior Transfer Date | Aug 4, 2006 |
| Prior Transfer Doc | 0001829148 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Nov 28, 2023 |
| Property Address | 10203 MATTOCK AVE, DOWNEY, CA 90241-3002 |
| Document Number | 0000821359 |
| Map Reference | MB 438 PG 15&16 |
| Instrument Date | Nov 7, 2023 |
| Instrument | 23-0821359 |
| Transaction Type | Transfer |
| Record Updated | Dec 11, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 10203 MATTOCK AVE, DOWNEY, CA 90241-3002 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 10203 MATTOCK AVE, DOWNEY, CA 90241-3002 |
| Document Number | 0000502571 |
| Instrument Date | Apr 23, 2020 |
| Transaction Type | Mortgage |
| Record Updated | May 13, 2020 |
| Title Company | PROVIDENT TITLE |
| Name | Verified Name |
|---|---|
| Address | 10203 MATTOCK AVE DOWNEY CA 902413002, DOWNEY, CA 90241-3002 |
| Document Number | 0000502571 |
|---|---|
| Date | May 7, 2020 |
| Instrument | 502571 |
| Name | ILOANMASTER INC ILOANMASTER INC |
|---|---|
| Type | Bank |
| Address | GARDEN GROVE, CA 92843 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | May 6, 2050 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Sep 29, 2017 |
| Property Address | 10203 MATTOCK AVE, DOWNEY, CA 90241-3002 |
| Document Number | 0001119447 |
| Map Reference | MB438 PG15&16 |
| Instrument Date | Sep 6, 2017 |
| Instrument | 17-1119447 |
| Transaction Type | Transfer |
| Record Updated | Sep 22, 2021 |
| Title Company | WFG NATIONAL TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 10203 MATTOCK AVE, DOWNEY, CA 90241-3002 |
| Investor | Possibly a Property Investor |
| Document Number | 0001119448 |
|---|---|
| Date | Sep 29, 2017 |
| Instrument | 17-1119448 |
| Name | VISION ONE MORTGAGE INC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Oct 1, 2047 |
The 2025 property tax bill for 10203 Mattock Ave was $7,843.
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Downey City |
| Unified School District | Downey Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $615,104 (+2%) Land $492,085 Building $123,019 | |
| 2025 | $7,843.00 | $603,044 Land $482,437 Building $120,607 |
| 2023 | $7,451.00 (+5.24%) | $579,629 Land $463,704 Building $115,925 |
| 2022 | $7,080.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 10203 Mattock Ave in Zone X, where a levee reduces flood risk.
Source: FEMA National Flood Hazard Layer, effective September 30, 2026
| FEMA Flood Zone | Zone X reduced by levee · depends on levee performance |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 10203 Mattock Ave 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.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | DOWNEY - CITY, WATER DEPT. serves 110,556 people · EPA ID CA1910034 |
|---|---|
| Water Source | Groundwater |
| Lead | Under 1 ppb (2021–2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Coliform assessment Feb 2018 |
| 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.
Source: FCC Broadband Data Collection, based on 486 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures