Hays County property record for 820 Lost River Rd, San Marcos, TX 78666
| Property Type | Rural Home |
|---|---|
| Details | 4,512 sqft · built 2014 |
| Lot Size | 25 acres (1,089,000 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $22,756 (2024) |
| Deeds & Mortgages | Jun 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | R103690 |
| Primary APN | R103690 |
|---|---|
| Alternative APN |
|
| Stories | 2 Stories |
|---|---|
| Building Area | 4,512 sqft Living Area |
| 2nd Floor Area | 876 sqft |
| Year Built | Built 2014 |
|---|---|
| Foundation Type | Slab (Mat/Raft) |
| Lot Area | 1,089,000 sqft (25 acres) |
| Garage Type | Mixed |
| Garage Area | 1,840 sqft |
| Parking Spaces | 4 Parking Spaces |
| Pool Type | Spa / Hot Tub (No Pool) |
|---|---|
| Pool Area | 1,196 sqft |
| Pool House | 1,196 sqft |
| Porch | Porch |
| Porch Area | 1,308 sqft |
| Outdoor Kitchen / BBQ | Outdoor Kitchen / BBQ |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Old Parcel Number | 1001920001000038 |
|---|---|
| Street Address | 820 LOST RIVER RD |
| City | SAN MARCOS |
| State | TX |
| Zip | 78666-0204 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Legal Description | A0192 WILLIAM GRAY SURVEY, ACRES 25.00 TAX CODES:RSP,SWI,WEU |
| Legal Subdivision | WILLIAM GRAY SURVEY |
| Jurisdiction | HAYS TX |
| Township / Civil Division | SAN MARCOS |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 10704 |
820 Lost River Rd, a rural home, is owner-occupied and held in a trust since June 2023.
Source: Hays County records, as of March 19, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Co-owner | 2 Co-owners on File |
| Mailing Address | 820 LOST RIVER RD, SAN MARCOS, TX 78666-0204 |
| Occupancy | Owner Occupied |
| Owner Type | Company, Secondary Individual |
| Vesting | Trust |
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 | 3 Names on Deed |
|---|---|
| Last Sale | Apr 12, 2012 |
| Deed Sale | Apr 12, 2012 |
| Deed Document Number | 0000009409 |
| Last Transfer Date | Jun 9, 2023 |
| Transfer Doc | 0000020718 |
| Record Updated | Jun 8, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | HAYS TX |
| Recording Date | Jun 9, 2023 |
| Property Address | 820 LOST RIVER RD, SAN MARCOS, TX 78666-0204 |
| Document Number | 0000020718 |
| Instrument Date | Jun 7, 2023 |
| Instrument | 23020718 |
| Transaction Type | Transfer |
| Record Updated | Mar 20, 2026 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 820 LOST RIVER RD, SAN MARCOS, TX 78666-0204 |
Source: Hays County assessment roll, as of August 1, 2025
| Type | Name |
|---|---|
| State | Texas |
| County | Hays County |
| Unified School District | Wimberley Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,657,170 | $3,105,890 Land $1,482,380 Building $1,623,510 | |
| 2024 | $22,756.00 | ||
| 2023 | $1,522,457 (+1%) | $3,036,060 (+43.31%) Land $1,482,380 Building $1,553,680 | |
| 2022 | $21,493.00 Additional exemption filed | $1,384,067 | $2,118,480 Land $750,000 Building $1,368,480 |
| 2018 | $16,885.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 820 Lost River Rd in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2015.
Source: FEMA National Flood Hazard Layer, effective May 21, 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 |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 1 (2015) |
| Most Recent Claim | May 2015 · Severe Storms, Tornadoes, Straight-line Winds And Flooding |
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 820 Lost River Rd is moderate, ranking above 62% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 62% of the US · above 47% of Texas |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 2 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| AT&T Fixed Wireless | 100 / 20 |
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