3520 E Diamondhead Ave, Alton (Mission), TX 78573 Property Records

Hidalgo County property record for 3520 E Diamondhead Ave, Alton, TX 78573

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,395 sqft · built 2024
Lot Size	0.126 acres (5,532 sqft)
Owner	Individual Name on File
Tax Bill	$1,033 (2024)
Deeds & Mortgages	Apr 2024 Mortgage
APN	`S180300000000900`

Property Details

APN / Parcel Number

Primary APN	`S180300000000900`
Alternative APN	`1469923`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Building Area	1,395 sqft Living Area
1st Floor Area	1,395 sqft
Flooring	Tile
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 2024
Exterior Material	Brick
Foundation Type	Slab (Mat/Raft)
Roof Type	Hip
Lot Area	5,532 sqft (0.126 acres)
Lot Dimensions	111 ft deep x 50 ft wide
Garage Area	462 sqft
Parking Spaces	2 Parking Spaces
Porch	Covered Porch
Porch Area	26 sqft
Patio Area	96 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Account Number	S180300000000900
Street Address	3520 E DIAMONDHEAD AVE
City	ALTON
State	TX
Zip	78573-4576
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SANTA FE AT ALTON LOT 9
Legal Subdivision	SANTA FE AT ALTON - SSL
Legal Lot Number	9
Jurisdiction	HIDALGO TX
Township / Civil Division	MISSION
Census Block Group	1
Census Block	1001
Census Tract	24128

Owner

Source: Hidalgo County records · APN S180300000000900

Assessment roll updated July 25, 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	Individual Name on File
Co-owner	Verified Secondary Owner
Mailing Address	3520 E DIAMONDHEAD AVE, ALTON, TX 78573-4576
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Apr 02, 2024
Deed Sale	Apr 02, 2024
Deed Document Number	3536191
Record Updated	Jun 08, 2026

April 2024: Vendor's Lien, Transfer

Document Type	Vendor's Lien
Jurisdiction	HIDALGO TX
Recording Date	Apr 02, 2024
Property Address	3520 E DIAMONDHEAD AVE, ALTON, TX 78573-4576
Document Number	0003536191
Map Reference	DOC 3402425
Instrument Date	Mar 28, 2024
Instrument	3536191
Transaction Type	Transfer
Record Updated	Nov 11, 2025
Title Company	UNKNOWN, VALLEY LAND TITLE

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3520 E DIAMONDHEAD AVE, ALTON, TX 78573-4576

Mortgage

Document Number	0003536192
Date	Apr 02, 2024
Instrument	3536192

Lender

Name	NATIONS LENDING CORP
Type	Mortgage Company
Special Notes	Seller Financed

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 01, 2054

Tax Assessment & Valuation

Source: Hidalgo County records · Assessment roll updated July 25, 2025 · Last verified November 2025

Property Jurisdictions

Type	Name
State	Texas
Municipality	Alton City
County	Hidalgo County
Unified School District	Sharyland Independent School District (PK - 12)

Tax Bill & Assessment History

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		$249,026 (+452.38%) Land $45,082 Building $203,944	$249,026 (+452.38%) Land $45,082 Building $203,944
2024	$1,033.00 (-6.94%)
2023		$45,082 Land $45,082	$45,082 Land $45,082
2022	$1,110.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Not on file
Nearby Flood Policies	5 in force

Wildfire

Wildfire Risk	Moderate above 40% of the US · lower than 85% of Texas
Wildfire Likelihood	0.07% annual chance
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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Metronet Holdings Fiber	5,120 / 5,120
Spectrum Cable	1,000 / 1,000
Wireless Internet Fixed Wireless	400 / 100
Valley Telephone Cooperative, Inc. (TX) Fixed Wireless	400 / 50

May also be available: AT&T, Smartcom Telephone, Verizon.

Based on FCC filings for 278 locations within half a mile of this property.

Drinking Water

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	SHARYLAND WSC serves 68,562 people
Water Source	Surface water
Last State Inspection	Sep 2025
Lead	1 ppb (2024) action level 15 ppb

Violations Reported to EPA

Water Quality	Chlorite resolved · Jan 2019
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.