Harris County property record for 509 Mason St, Tomball, TX 77375
| Property Type | Commercial Vacant Land |
|---|---|
| Lot Size | 0.161 acres (7,000 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $137,300 (Apr 1999) |
| Tax Bill | $940 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 035-266-042-0039 |
| Primary APN | 035-266-042-0039 |
|---|
| Lot Area | 7,000 sqft (0.161 acres) |
|---|
| Heating Fuel | Gas |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 0352660420039 |
|---|---|
| Street Address | 509 MASON ST |
| City | TOMBALL |
| State | TX |
| Zip | 77375-4449 |
| Property Category | Commercial |
| Property Type | Vacant Land > Commercial |
| Legal Description | LTS 39 & 40 BLK 42 TOMBALL |
| Legal Subdivision | TOMBALL |
| Legal Block | 42 |
| Legal Lot Number | 39,40 |
| Jurisdiction | HARRIS TX |
| Township / Civil Division | NORTHWEST HARRIS |
| Census Block Group | 1 |
| Census Block | 1038 |
| Census Tract | 555403 |
Source: Harris County records, as of May 26, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 22550 AUGUST LEAF DR, TOMBALL, TX 77375-5440 |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 28, 1999 · Amount on Record |
| Deed Sale | Apr 28, 1999 · Amount on Record |
| Deed Document Number | 1999687988 |
| Deed Book / Page | 52527 / 456 |
| Last Transfer Date | Jan 31, 2012 |
| Transfer Doc | 0000040678 |
| Record Updated | Sep 20, 2026 |
Source: Harris County assessment roll, as of May 26, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Harris County |
| Municipality | Tomball City |
| Unified School District | Tomball Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $940.00 (+94.62%) | $42,000 (-) Land $42,000 | $42,000 (-) Land $42,000 |
| 2024 | $483.00 (+12.33%) | ||
| 2023 | $42,000 Land $42,000 | $42,000 Land $42,000 | |
| 2022 | $430.00 (+33.96%) | ||
| 2020 | $321.00 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
Source: FEMA National Flood Hazard Layer, effective May 17, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 25 policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 25 in force |
| Nearby Flood Claims | 2 (2024) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | May 2024 · Severe Storms, Straight-line Winds, Tornadoes, And Flooding |
| Claims by Event |
|
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: 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 | CITY OF TOMBALL serves 17,532 people · EPA ID TX1010026 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 2024 |
| Lead | 14 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 445 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile.
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