Bexar County property record for 603 E Guenther St, San Antonio, TX 78210
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,562 sqft · built 1888 |
| Lot Size | 0.172 acres (7,501 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $1,772 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 00940-003-0040 |
| Primary APN | 00940-003-0040 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 2,562 sqft Living Area |
| 1st Floor Area | 1,600 sqft |
| 2nd Floor Area | 962 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1888 |
|---|---|
| Effective Year Built | Effective 1980 |
| Exterior Material | Asbestos |
| Roof Material | Metal |
| Lot Area | 7,501 sqft (0.172 acres) |
| Lot Dimensions | 150 ft deep x 50 ft wide |
| Garage Type | Detached |
| Garage Area | 684 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
|---|---|
| Porch Area | 390 sqft |
| Shed | 1 Shed |
| Shed Area | 144 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 603 E GUENTHER ST |
|---|---|
| City | SAN ANTONIO |
| State | TX |
| Zip | 78210-1134 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | NCB 940 BLK 3 LOT 4 |
| Legal Subdivision | CONV A/S CODE |
| Legal Block | 3 |
| Legal Lot Number | 4 |
| Jurisdiction | BEXAR TX |
| Township / Civil Division | SAN ANTONIO CENTRAL |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 192100 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the South Alamo Street-South Mary's Street Historic District listed 1984 · 331 contributing resources · NRIS 84000026 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
603 E Guenther St is owned and occupied by an individual.
Source: Bexar County records, as of May 26, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 627 CEDAR ST, SAN ANTONIO, TX 78210-1216 |
| 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.
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 603 E Guenther St was $1,772 with exemptions applied, up 7.9% from the year before.
Source: Bexar County assessment roll, as of May 26, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Bexar County |
| Municipality | San Antonio City |
| Unified School District | San Antonio Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,772.00 (+7.92%) Homeowner's exemption Senior Citizen's exemption | $504,832 Land $317,700 Building $332,300 | $650,000 Land $317,700 Building $332,300 |
| 2024 | $1,642.00 (-8.17%) | ||
| 2023 | $1,788.00 (+0.56%) Homeowner's exemption Senior Citizen's exemption | $610,400 Land $317,700 Building $292,700 | $610,400 Land $317,700 Building $292,700 |
| 2022 | $1,778.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 603 E Guenther St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 5 in force |
| Nearby Flood Claims | 1 (2002) |
| Most Recent Claim | Jul 2002 · Severe Storms 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.
The area around 603 E Guenther 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 | SAN ANTONIO WATER SYSTEM serves 2,643,729 people · EPA ID TX0150018 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Aug 2023 |
| Lead | 2 ppb (2022–2024) 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 449 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 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Alamo Broadband Fixed Wireless | 450 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, RGV Communications.
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