Travis County property record for 309 Blackson Ave, Austin, TX 78752 · Last verified November 2025
| Property Type | Duplex |
|---|---|
| Details | 2 ba · 1,853 sqft · built 1984 |
| Lot Size | 0.176 acres (7,671 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $5,995 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0231140905 |
| Primary APN | 0231140905 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Stories | 1 Story |
| Building Area | 1,853 sqft Total Area |
| Gross Area | 2,231 sqft |
| 1st Floor Area | 1,853 sqft |
| Year Built | Built 1984 |
|---|---|
| Construction Type | Wood Frame |
| Foundation Type | Slab (Mat/Raft) |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 7,671 sqft (0.176 acres) |
| Lot Dimensions | 144 ft deep x 50 ft wide |
| Garage Type | Attached |
| Garage Area | 378 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Porch |
| Porch Area | 136 sqft |
| Patio Area | 180 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Account Number | 232680 |
|---|---|
| Old Parcel Number | 02311409050000 |
| Street Address | 309 BLACKSON AVE |
| City | AUSTIN |
| State | TX |
| Zip | 78752-2610 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LOT 9 BLK 9 ST JOHNS HOME ADDN |
| Legal Subdivision | ST JOHNS HOME ADDN |
| Legal Block | 9 |
| Legal Lot Number | 9 |
| Jurisdiction | TRAVIS TX |
| Township / Civil Division | AUSTIN |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 40000 |
Source: Travis County records · APN 0231140905
Assessment roll updated August 1, 2025 · Last verified November 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 309 BLACKSON AVE # A, A, AUSTIN, TX 78752-2610 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jan 15, 2003 |
| Deed Sale | Jan 15, 2003 |
| Prior Sale | Jan 15, 2003 |
| Deed Document Number | 2003009797 |
| Record Updated | Jun 08, 2026 |
Source: Travis County records · Assessment roll updated August 1, 2025 · Last verified November 2025
| Type | Name |
|---|---|
| State | Texas |
| Municipality | Austin City |
| County | Travis County |
| Unified School District | Austin Independent School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $316,624 (-39.54%) Land $260,066 Building $56,558 | $316,624 (-39.54%) Land $260,066 Building $56,558 | |
| 2024 | $5,995.00 (+12.04%) | ||
| 2023 | $523,673 Land $240,000 Building $283,673 | $523,673 Land $240,000 Building $283,673 | |
| 2022 | $5,351.00 |
Source: FEMA National Flood Hazard Layer, Travis County (48453C), updated May 17, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 484530400001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 637 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Google Fiber | Fiber | 8,000 / 8,000 |
| AT&T | Fiber | 5,000 / 5,000 |
| Radiate Holdings | Cable | 1,500 / 50 |
| Spectrum | Cable | 1,000 / 1,000 |
| Verizon | Fixed Wireless | 1,000 / 75 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
May also be available at this address: AT&T, Spectrum, Radiate Holdings. Availability varies by address; speeds are provider-advertised maximums, not measured.
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