Los Angeles County property record for 4100 Rosemead Blvd, Rosemead, CA 91770
| Property Type | Commercial Office |
|---|---|
| Details | 5,330 sqft · built 1949 |
| Lot Size | 0.216 acres (9,402 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,860,000 (Jan 2016) |
| Tax Bill | $22,633 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 5391-015-051 |
| Primary APN | 5391-015-051 |
|---|
| Stories | 1 Story |
|---|---|
| Building Area | 5,330 sqft Total Area |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1949 |
| Construction Type | Masonry / Concrete Block |
| Fire Resistance | Masonry Walls, Wood Interior |
| Lot Area | 9,402 sqft (0.216 acres) |
| Total Buildings | 2 Buildings |
| Cooling System | HVAC |
|---|
| Street Address | 4100 ROSEMEAD BLVD |
|---|---|
| City | ROSEMEAD |
| State | CA |
| Zip | 91770 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | RMCBD* |
| Legal Description | TR=5165*E 89.5 FT OF W 129.5 FT OF LOT 55 |
| Legal Subdivision | 5165 |
| Legal Tract | 5165 |
| Legal Block | 2 |
| Legal Lot Number | 55 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | SOUTHWEST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 432202 |
Source: Los Angeles County records, as of August 25, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 9828 HOWLAND DR, TEMPLE CITY, CA 91780-3232 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jan 14, 2016 · Amount on Record |
| Deed Sale | Jan 14, 2016 · Amount on Record |
| Prior Sale | Jan 20, 2006 |
| Deed Document Number | 201644566 |
| Prior Transfer Date | Feb 10, 1994 |
| Prior Transfer Doc | 0000377461 |
| Record Updated | Oct 29, 2026 |
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Rosemead City |
| Secondary School District | El Monte Union High School District (09 - 12) |
| Elementary School District | Rosemead Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,790,673 (+2%) Land $805,379 Building $985,294 | |
| 2025 | $22,633.00 (+3.04%) | $1,755,563 (+4.04%) Land $789,588 Building $965,975 |
| 2023 | $21,965.00 (+3.55%) | $1,687,394 Land $758,928 Building $928,466 |
| 2022 | $21,211.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective September 30, 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.
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 | CAL/AM WATER COMPANY - SAN MARINO private · serves 48,065 people · EPA ID CA1910139 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Nov 2025 |
| Lead | Under 1 ppb (2024–2026) 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, 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 644 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fixed Wireless in parts of the area | 100 / 20 |
May also be available: GeoLinks.
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