Harris County property record for 5243 Keystone St, Houston, TX 77021
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,088 sqft · built 1953 |
| Lot Size | 0.149 acres (6,493 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $2,428 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 077-101-005-0024 |
| Primary APN | 077-101-005-0024 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Plumbing Fixtures | 5 Plumbing Fixtures |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,088 sqft Living Area |
| 1st Floor Area | 1,088 sqft |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1953 |
| Architectural Style | Traditional |
| Exterior Material | Combination |
| Construction Type | Frame |
| Foundation Type | Slab (Mat/Raft) |
| Lot Area | 6,493 sqft (0.149 acres) |
| View / Lot | Neighborhood |
| Porch | Open Frame Porch |
| Porch Area | 112 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 0771010050024 |
|---|---|
| Street Address | 5243 KEYSTONE ST |
| City | HOUSTON |
| State | TX |
| Zip | 77021-3746 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LT 24 BLK 5 MACGREGOR PALMS SEC 1 |
| Legal Subdivision | MACGREGOR PALMS SEC 1 |
| Legal Block | 5 |
| Legal Lot Number | 24 |
| Jurisdiction | HARRIS TX |
| Township / Civil Division | HOUSTON |
| Census Block Group | 3 |
| Census Block | 3011 |
| Census Tract | 313400 |
5243 Keystone St is owned by a company that acquired it in May 2016.
Source: Harris County records, as of September 29, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 17171 PARK ROW, 100, HOUSTON, TX 77084-4935 |
| Owner Type | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 27, 2016 |
| Deed Sale | May 27, 2016 |
| Prior Sale | Jun 24, 1999 · Amount on File |
| Deed Document Number | 2016227035 |
| Prior Transfer Date | Jun 14, 1999 |
| Prior Transfer Doc | 000T804527 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 5243 Keystone St was $2,428, down 1% from the year before.
Source: Harris County assessment roll, as of September 29, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Harris County |
| Municipality | Houston City |
| Unified School District | Houston Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $108,443 (-5.09%) Land $74,958 Building $33,485 | $108,443 (-5.09%) Land $74,958 Building $33,485 | |
| 2025 | $2,428.00 (-9.97%) | $114,263 Land $74,958 Building $39,305 | $114,263 Land $74,958 Building $39,305 |
| 2024 | $2,697.00 | ||
| 2023 | $127,342 Land $74,958 Building $52,384 | $127,342 Land $74,958 Building $52,384 | |
| 2022 | $2,565.00 | ||
| 2020 | $1,946.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 5243 Keystone St in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 2012.
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 File median of 20 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 20 in force |
| Nearby Flood Claims | 3 (2012–2017) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Aug 2017 · Hurricane Harvey |
| 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.
The area around 5243 Keystone 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.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF HOUSTON serves 2,970,543 people · EPA ID TX1010013 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Oct 2025 |
| Lead | 5 ppb (2024) action level 15 ppb |
| Water Quality | Turbidity resolved · May 2025 |
|---|---|
| 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 500 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile.
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