Guadalupe County property record for 209 Mostyn Ln, San Marcos, TX 78666
| Property Type | Single Family Home |
|---|---|
| Details | 1,570 sqft · built 2019 |
| Lot Size | 2.13 acres (93,218 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $304,300 (Aug 2018) |
| Tax Bill | $3,994 (2025) |
| Deeds & Mortgages | Jan 2022 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 000000169518 |
| Primary APN | 000000169518 |
|---|---|
| Alternative APNs |
|
| Stories | 1 Story |
|---|---|
| Building Area | 1,570 sqft Living Area |
| Gross Area | 1,698 sqft |
| 1st Floor Area | 1,570 sqft |
| Year Built | Built 2019 |
|---|---|
| Effective Year Built | Effective 2019 |
| Lot Area | 93,218 sqft |
| Porch | Covered Porch |
| Porch Area | 173 sqft |
| Storage Building | 192 sqft |
| Water Source | Commercial |
|---|
| Street Address | 209 MOSTYN LN |
|---|---|
| City | SAN MARCOS |
| State | TX |
| Zip | 78666-1641 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MOSTYN POINT LOT #1 2.14 AC. WAS ABS: 339 SUR: JOHN WELLS |
| Legal Subdivision | MOSTYN POINT |
| Legal Tract | 1 |
| Legal Block | 2 |
| Legal Lot Number | 1 |
| Jurisdiction | GUADALUPE TX |
| Township / Civil Division | NORTHEAST GUADALUPE |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 210506 |
Source: Guadalupe County records, as of August 12, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 209 MOSTYN LN, SAN MARCOS, TX 78666-1641 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 15, 2018 · Amount on Record |
| Deed Sale | Aug 15, 2018 · Amount on Record |
| Deed Document Number | 201899018620 |
| Prior Transfer Date | Aug 10, 2018 |
| Prior Transfer Doc | 0099018620 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | GUADALUPE TX |
| Property Address | 209 MOSTYN LN, SAN MARCOS, TX 78666-1641 |
| Transaction Type | Mortgage |
| Record Updated | Feb 1, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0099002196 |
|---|---|
| Date | Jan 20, 2022 |
| Instrument | 202299002196 |
| Name | ASSURANCE FINANCIAL GROUP LLC |
|---|---|
| Type | Lending Institution |
| Address | BATON ROUGE, LA 70809 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Feb 1, 2052 |
Source: Guadalupe County assessment roll, as of August 12, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Guadalupe County |
| Unified School District | San Marcos Consolidated Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $374,773 (-6.89%) Land $147,344 Building $227,429 | $374,773 (-9.2%) Land $147,344 Building $227,429 | |
| 2025 | $3,994.00 (+3.55%) Homeowner's exemption | $402,520 (+11.41%) Land $202,496 Building $210,251 | $412,747 (+14.24%) Land $202,496 Building $210,251 |
| 2024 | $3,857.00 (+14.15%) | ||
| 2023 | $3,379.00 (-15.74%) Homeowner's exemption | $361,302 Land $150,276 Building $211,026 | $361,302 Land $150,276 Building $211,026 |
| 2022 | $4,010.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective April 27, 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 24 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 24 in force |
| Nearby Flood Claims | 23 (1998–2017) |
| Claims Outside the SFHA | 3 of 23 |
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 45% of the US · lower than 81% of Texas |
|---|---|
| Wildfire Likelihood | 0.08% annual chance |
| Exposure | Direct burnable vegetation |
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 | CRYSTAL CLEAR SUD serves 20,766 people · EPA ID TX0940015 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Aug 2025 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | Haloacetic acids resolved · Jul 2019 Total trihalomethanes resolved · Jul 2019 Failure to filter resolved · Apr 2012 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 2 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 22 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| VTX Communications Fixed Wireless | 400 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| Guadalupe Valley Electric Cooperative Fixed Wireless | 100 / 20 |
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