Los Angeles County property record for 209 S Mountain Ave, Monrovia, CA 91016
| Property Type | Single Family Home |
|---|---|
| Details | 7 bd · 4 ba · 4,388 sqft · built 1911 |
| Lot Size | 0.254 acres (11,061 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $1,400,000 (May 2024) |
| Tax Bill | $23,165 (2025) |
| Deeds & Mortgages | May 2024 Transfer May 2024 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 8517-024-026 |
| Primary APN | 8517-024-026 |
|---|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 17 Rooms |
| Stories | 2 Stories |
| Building Area | 4,388 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1911 |
|---|---|
| Effective Year Built | Effective 1930 |
| Architectural Style | Conventional |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 11,061 sqft (0.254 acres) |
| Lot Dimensions | 150 ft deep x 74 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 209 S MOUNTAIN AVE |
|---|---|
| City | MONROVIA |
| State | CA |
| Zip | 91016-3037 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | MORL* |
| Legal Description | SUB OF THE RANCHO AZUSA DE DUARTE LOT COM S ON W LINE OF MOUNTAIN AVE 80 FT FROM S LINE OF WILD ROSE AVE TH S ON SD W LINE 70 FT TH W PARALLEL WITH SD S LINE 52 FT TH S PARALLEL WITH SD W LINE PART OF LOT 3 IN SEC 25 T 1N R 11W |
| Legal Range | 11W |
| Legal Township | 01N |
| Legal Section | 25 |
| Legal Subdivision | SUBDIVISION OF RANCH AZUSA DE DUARTE |
| Legal Block | 2 |
| Legal Lot Number | 3 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | UPPER SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 431002 |
Source: Los Angeles County records · APN 8517-024-026
Assessment roll updated May 21, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 209 S MOUNTAIN AVE, MONROVIA, CA 91016-3037 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Date | Document |
|---|---|
| May 13, 2024 | Affidavit of Death of Joint Tenant, Transfer LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY |
| May 13, 2024 | Grant Deed, Transfer LAWYERS TITLE |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 13, 2024 · Amount on Record |
| Deed Sale | May 13, 2024 · Amount on Record |
| Prior Sale | Oct 06, 2008 · Amount on Record |
| Deed Document Number | 2024311778 |
| Prior Transfer Date | May 06, 2024 |
| Prior Transfer Doc | 0000311777 |
| Record Updated | Sep 20, 2026 |
| Document Type | Affidavit of Death of Joint Tenant |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | May 13, 2024 |
| Property Address | 209 S MOUNTAIN AVE, MONROVIA, CA 91016-3037 |
| Document Number | 0000311777 |
| Map Reference | MB 6 PG 80-82 |
| Instrument Date | Apr 05, 2024 |
| Instrument | 24-0311777 |
| Transaction Type | Transfer |
| Record Updated | May 21, 2024 |
| Title Company | LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 601 N PASADENA AVE, GLENDORA, CA 91741-2147 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | May 13, 2024 |
| Property Address | 209 S MOUNTAIN AVE, MONROVIA, CA 91016-3037 |
| Document Number | 0000311778 |
| Map Reference | MB 6 PG 80-82 |
| Instrument Date | Apr 02, 2024 |
| Instrument | 24-0311778 |
| Transaction Type | Transfer |
| Record Updated | May 21, 2024 |
| Title Company | LAWYERS TITLE |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 209 S MOUNTAIN AVE, MONROVIA, CA 91016-3037 |
Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Monrovia City |
| Unified School District | Monrovia Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $23,165.00 (+158.13%) | $1,734,000 (+171.79%) Land $1,122,000 Building $612,000 |
| 2023 | $8,974.00 (+1.1%) | $638,000 Land $372,000 Building $266,000 |
| 2022 | $8,876.00 |
Source: FEMA National Flood Hazard Layer as of September 30, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Indirect within ember reach |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Giggle Fiber Cable | 1,000 / 40 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: California Internet.
Based on FCC filings for 398 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | MONROVIA-CITY, WATER DEPT. serves 37,931 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Sep 2024 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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