Cameron County property record for 510 W Buchanan St, Harlingen, TX 78550
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1,755 sqft · built 1969 |
| Lot Size | 0.161 acres (7,000 sqft) |
| Owner | Individual Name on File |
| Last Sale | $181,212 (Jul 2022) |
| Tax Bill | $3,155 (2025) |
| Deeds & Mortgages | Dec 2022 Mortgage Jul 2022 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 150000-1350-009000 |
| Primary APN | 150000-1350-009000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Stories | 2 Stories |
| Building Area | 1,755 sqft Living Area |
| 1st Floor Area | 910 sqft |
| 2nd Floor Area | 845 sqft |
| Year Built | Built 1969 |
|---|---|
| Effective Year Built | Effective 1969 |
| Architectural Style | Townhouse |
| Exterior Material | Wood |
| Roof Type | Gable/Hip |
| Lot Area | 7,000 sqft (0.161 acres) |
| Lot Dimensions | 140 ft deep x 50 ft wide |
| Garage Type | Carport |
| Garage Area | 143 sqft |
| Carport | Carport |
| Carport Area | 143 sqft |
| Porch | Open Porch |
| Porch Area | 105 sqft |
| Storage Building | 120 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 510 W BUCHANAN ST |
|---|---|
| City | HARLINGEN |
| State | TX |
| Zip | 78550-6614 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | HARLINGEN ORIGINAL TOWNSITE LOT 9 BLK 135 |
| Legal Subdivision | HARLINGEN ORIGINAL TOWNSITE (VOL 2 PG 14 |
| Legal Block | 135 |
| Legal Lot Number | 9 |
| Jurisdiction | CAMERON TX |
| Township / Civil Division | HARLINGEN-SAN BENITO |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 11100 |
Source: Cameron County records · APN 150000-1350-009000
Assessment roll updated August 13, 2026 · Last verified August 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 File |
|---|---|
| Mailing Address | 510 W BUCHANAN ST, HARLINGEN, TX 78550-6614 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Dec 02, 2022 | Deed of Trust, Mortgage · Commercial Mortgage RELF 7 LLC |
| Jul 19, 2022 | Vendor's Lien, Transfer · Commercial Mortgage RFLF 4 LLC |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jul 19, 2022 · Amount on Record |
| Deed Sale | Jul 19, 2022 · Amount on Record |
| Deed Document Number | 202229492 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CAMERON TX |
| Property Address | 510 W BUCHANAN ST, HARLINGEN, TX 78550-6614 |
| Transaction Type | Mortgage |
| Record Updated | Dec 21, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0202247718 |
|---|---|
| Date | Dec 02, 2022 |
| Instrument | 2022-47718 |
| Name | RELF 7 LLC |
|---|---|
| Type | Non-Lending Institution |
| Address | CHICAGO, IL 60606 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Dec 01, 2052 |
| Document Type | Vendor's Lien |
|---|---|
| Jurisdiction | CAMERON TX |
| Recording Date | Jul 19, 2022 |
| Property Address | 510 W BUCHANAN ST, HARLINGEN, TX 78550-6614 |
| Document Number | 0202229492 |
| Map Reference | VOL 2 PG 14 |
| Instrument Date | Jul 11, 2022 |
| Instrument | 2022-29492 |
| Transaction Type | Transfer |
| Record Updated | Aug 02, 2022 |
| Title Company | SAN JACINTO TITLE SERVICES-HOLLY, SAN JACINTO TTL SVCS HARLING |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 11814 RADCLIFF CT, 11814, SAN ANTONIO, TX 78253-5951 |
| Name | Verified Name |
|---|---|
| Address | 84 NE LOOP 410 # 209, 209, SAN ANTONIO, TX 78216-5802 |
| Investor | Possibly a Property Investor |
| Document Number | 0202229493 |
|---|---|
| Date | Jul 19, 2022 |
| Instrument | 2022-29493 |
| Name | RFLF 4 LLC |
|---|---|
| Type | Non-Lending Institution |
| Special Notes | Seller Financed |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 13 Months |
| Due | Aug 01, 2023 |
Source: Cameron County records · Assessment roll updated August 13, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Cameron County |
| Municipality | Harlingen City |
| Unified School District | Harlingen Consolidated 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 |
|---|---|---|---|
| 2026 | $162,930 (-) Land $45,150 Building $117,780 | $162,930 (-) Land $45,150 Building $117,780 | |
| 2025 | $3,155.00 (-2.17%) | $162,930 (+22.03%) Land $45,150 Building $117,780 | $162,930 (+22.03%) Land $45,150 Building $117,780 |
| 2024 | $3,225.00 (+84.29%) | ||
| 2023 | $1,750.00 Additional exemption filed | $133,519 Land $31,850 Building $101,669 | $133,519 Land $31,850 Building $101,669 |
| 2022 | $1,750.00 |
Source: FEMA National Flood Hazard Layer as of July 18, 2018 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 4 (1991–2018) |
| Claims Outside the SFHA | 4 of 4 |
| Most Recent Claim | Jun 2018 · Severe Storms And Flooding |
| Wildfire Risk | Not rated no burnable land within 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 as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Metronet Holdings Fiber | 1,000 / 1,000 |
| Valley Telephone Cooperative, Inc. (TX) Fixed Wireless · Fiber in parts of the area | 400 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| Innercity Fibernet Fixed Wireless | 100 / 100 |
| AT&T Fixed Wireless · Fiber in parts of the area | 100 / 20 |
May also be available: Smartcom Telephone, T-Mobile USA.
Based on FCC filings for 576 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | HARLINGEN WATER WORKS SYSTEM serves 85,900 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2025 |
| Lead | Under 1 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
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