Harris County property record for 818 Thornwick Dr, Houston, TX 77079
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,880 sqft · built 1967 |
| Lot Size | 0.19 acres (8,280 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $611,948 (Aug 2021) |
| Tax Bill | $10,073 (2025) |
| Deeds & Mortgages | Apr 2026 Line of Credit Aug 2021 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 099-260-000-0045 |
| Primary APN | 099-260-000-0045 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Plumbing Fixtures | 10 Plumbing Fixtures |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,880 sqft Living Area |
| 1st Floor Area | 1,530 sqft |
| Game Room | Game Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1967 |
|---|---|
| Effective Year Built | Effective 2015 |
| Architectural Style | Traditional |
| Exterior Material | Brick |
| Construction Type | Frame |
| Foundation Type | Slab (Mat/Raft) |
| Lot Area | 8,280 sqft (0.19 acres) |
| View / Lot | Neighborhood |
| Garage Type | Detached |
| Garage Area | 462 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Frame Porch |
| Porch Area | 1,586 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 0992600000045 |
|---|---|
| Street Address | 818 THORNWICK DR |
| City | HOUSTON |
| State | TX |
| Zip | 77079-4512 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LT 45 BLK 3 THORNWOOD SEC 1 |
| Legal Subdivision | THORNWOOD SEC 1 |
| Legal Block | 3 |
| Legal Lot Number | 45 |
| Jurisdiction | HARRIS TX |
| Township / Civil Division | HOUSTON |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 450402 |
818 Thornwick Dr is owned and occupied by two individuals who bought it in August 2021.
Source: Harris County records, as of September 29, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 818 THORNWICK DR, HOUSTON, TX 77079-4512 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 |
|---|---|
| Apr 21, 2026 | Deed of Trust, Mortgage · Line of Credit FROST BANK |
| Aug 9, 2021 | Vendor's Lien, Transfer · Conventional Mortgage BETTER MORTGAGE CORPORATION |
| Jun 2, 2020 | Warranty Deed, Transfer NOT AVAILABLE |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 9, 2021 · Amount on File |
| Deed Sale | Aug 9, 2021 · Amount on File |
| Prior Sale | Nov 30, 2005 |
| Deed Document Number | 2021451245 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | HARRIS TX |
| Recording Date | Apr 21, 2026 |
| Property Address | 818 THORNWICK DR, HOUSTON, TX 77079-4512 |
| Document Number | 0000150852 |
| Instrument Date | Apr 13, 2026 |
| Instrument | 2026150852 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Name | Verified Name |
|---|---|
| Address | 818 THORNWICK DR, HOUSTON, TX 77079-4512 |
| Document Number | 0000150852, |
|---|---|
| Date | Apr 21, 2026 |
| Instrument | 2026150852 |
| Name | FROST BANK |
|---|
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate | 6.11% |
|---|---|
| Max Rate | -1% |
| Document Type | Vendor's Lien |
|---|---|
| Jurisdiction | HARRIS TX |
| Recording Date | Aug 9, 2021 |
| Property Address | 818 THORNWICK DR, HOUSTON, TX 77079-4512 |
| Document Number | 2021451245 |
| Map Reference | VOL 143 PG 51 |
| Instrument Date | Jul 6, 2021 |
| Instrument | 2021-451245 |
| Transaction Type | Transfer |
| Record Updated | Sep 6, 2021 |
| Title Company | ALLIANCE TITLE, ALLEGIANCE TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 525 YALE ST APT 536, 525, HOUSTON, TX 77007-2872 |
| Name | Verified Name |
|---|---|
| Address | 818 THORNWICK DR, HOUSTON, TX 77079-4512 |
| Document Number | 2021451246 |
|---|---|
| Date | Aug 9, 2021 |
| Instrument | 2021-451246 |
| Name | BETTER MORTGAGE CORPORATION |
|---|---|
| Type | Mortgage Company |
| Special Notes | Seller Financed |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Aug 1, 2051 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | HARRIS TX |
| Recording Date | Jun 2, 2020 |
| Property Address | 818 THORNWICK DR, HOUSTON, TX 77079-4512 |
| Document Number | 0000234367 |
| Instrument Date | Dec 3, 2019 |
| Instrument | 234367 |
| Transaction Type | Transfer |
| Record Updated | Jun 10, 2020 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 818 THORNWICK DR HOUSTON TX 770794512, HOUSTON, TX 77079-4512 |
The 2025 property tax bill for 818 Thornwick Dr was $10,073 with a homeowner's exemption, up 5.6% 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 | Spring Branch Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $709,408 (+0.5%) Land $289,800 Building $419,608 | $709,408 (+0.5%) Land $289,800 Building $419,608 | |
| 2025 | $10,073.00 (+5.56%) Homeowner's exemption | $705,850 Land $289,800 Building $416,050 | $705,850 Land $289,800 Building $416,050 |
| 2024 | $9,542.00 | ||
| 2023 | $712,791 Land $248,400 Building $464,391 | $712,791 Land $248,400 Building $464,391 | |
| 2022 | $5,623.00 | ||
| 2020 | $3,665.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 818 Thornwick Dr in Zone X, an area of minimal flood risk, though there have been 21 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 138 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 263 units insured incl. 125 condo units |
| Nearby Flood Claims | 21 (2012–2020) |
| Claims Outside the SFHA | 15 of 21 |
| Most Recent Claim | Jun 2020 · other causes |
| 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.
Wildfire risk around 818 Thornwick Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 93% of the US · lower than 96% of Texas |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 113 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Starlink Satellite | 280 / 30 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
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