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Single Family ResidenceResidential
$88,400$115 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 76How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

403 DALLAS ST

TX
3
Beds
2
Baths
768 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1978
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$88K
$67K low$110K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,370 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$107,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$61,425
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$45,575
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$105,163
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$107,000

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.10 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.''

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyHIDALGO
Lot (acres)The size of the land the home sits on, from county records.0.15
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 108 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Alton Elementary SchoolC-
Elementary · Grades EE–5 · 0.1 mi
M
Rafael Cantu Junior High SchoolC
Middle · Grades 6–8 · 1.8 mi
H
Veterans Memorial High SchoolC
High · Grades 9–12 · 3.3 mi

District: Mission Consolidated Independent School District

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

403 Dallas St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 95% of homes in Alton
  • Costs less per square foot than 66% of homes in Hidalgo County
  • Smaller than 96% of homes in Alton
  • Has a smaller lot than 68% of homes in Alton
  • Older than 90% of homes in Alton

How it measures up in Alton

The dot is this home. The mark in the middle is the typical home in Alton.

Estimated value$88,400
CheaperTypical $181,392Pricier

Pricier than 5% of homes nearby

Price per ft²$115
CheaperTypical $131Pricier

Pricier than 38% of homes nearby

Living area768 ft²
SmallerTypical 1,427 ft²Bigger

Bigger than 4% of homes nearby

Lot size0.15 ac
SmallerTypical 0.17 acBigger

Bigger than 32% of homes nearby

Year built1978
OlderTypical 2001Newer

Newer than 10% of homes nearby

How 403 Dallas St ranks against every home in each area.
MeasureThis homeAltonHidalgo County
Estimated valuepricier than$88,4005% of homes6% of homes
Price per ft²pricier than$11538% of homes34% of homes
Living areabigger than768 ft²4% of homes8% of homes
Lot sizebigger than0.15 ac32% of homes32% of homes
Year builtnewer than197810% of homes13% of homes

About 403 Dallas St

How much is 403 Dallas St, , TX worth?

The TopHap Estimate for 403 Dallas St, , TX is $88,400 as of Sep 24, 2026. The likely range is $66,757 to $110,043. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 403 Dallas St, , TX last sell?

403 Dallas St, , TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 403 Dallas St, , TX?

403 Dallas St, , TX has 3 bedrooms, 2 bathrooms, 768 square feet of living space and a 0.15-acre lot.

When was 403 Dallas St, , TX built?

403 Dallas St, , TX was built in 1978, making it 48 years old. The building has 1 story.

What schools serve 403 Dallas St, , TX?

403 Dallas St, , TX is assigned to Alton Elementary School (elementary), rated C-; Rafael Cantu Junior High School (middle), rated C; Veterans Memorial High School (high), rated C. All sit in Mission Consolidated Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 403 Dallas St, , TX compare to other homes in Alton?

Among the 4,976 homes in Alton, it is worth more than 5% of them ($88,400 against a typical $181,392), its price per square foot is higher than 38% of them ($115 against a typical $131), it is bigger than 4% of them (768 ft² against a typical 1,427 ft²), its lot is bigger than 32% of them (0.15 ac against a typical 0.17 ac) and it is newer than 10% of them (1978 against a typical 2001). Measured against all of Hidalgo County, it is worth more than 6% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 403 Dallas St, , TX?

The 2025 property tax bill for 403 Dallas St, , TX was $1,370. The county assessed it at $107,000.

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