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Single Family ResidenceResidential
$309,506$75 / 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 91How 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

401 ALAMEDA ST

SAN ACACIO, CO 81151
2
Beds
1
Baths
4,138 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.
0.46 ac
Lot SizeThe size of the land the home sits on, from county records.
1910
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$310K
$280K low$339K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$666 (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.$16,681 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$17
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$16,664
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$8,295
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$266,896

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyCOSTILLA
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1933
Lot (acres)The size of the land the home sits on, from county records.0.46
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
HeatingThe type of heating system in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Centennial SchoolD-
Elementary · Grades PK–12 · 7.6 mi

District: Centennial School District R-1

Neighborhood · ZIP 81151These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.74
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.70

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.83%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.3,266
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$43,668
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$60,288
Average tempThe average temperature here across a full year.42°F
Annual precipHow much rain and melted snow falls here in a typical year.11 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.81%

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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

401 Alameda 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 more than 76% of homes in Sanford 81151
  • Costs less per square foot than 97% of homes in Sanford 81151
  • Among the largest homes in Sanford 81151
  • Has a smaller lot than 93% of homes in Sanford 81151
  • Older than 95% of homes in Costilla County

What homes are worth in Sanford 81151

Each bar is how many homes fall in that price range. The marker is this home.

This home
$74K$550K

This home is worth more than 76% of homes in Sanford 81151.

How it measures up in Sanford 81151

The dot is this home. The mark in the middle is the typical home in Sanford 81151.

Estimated value$309,506
CheaperTypical $212,196Pricier

Pricier than 76% of homes nearby

Price per ft²$75
CheaperTypical $149Pricier

Pricier than 3% of homes nearby

Living area4,138 ft²
SmallerTypical 1,436 ft²Bigger

Bigger than almost all homes nearby

Lot size0.46 ac
SmallerTypical 3.59 acBigger

Bigger than 7% of homes nearby

Year built1910
OlderTypical 1976Newer

Newer than 13% of homes nearby

How 401 Alameda St ranks against every home in each area.
MeasureThis homeSanford 81151Costilla County
Estimated valuepricier than$309,50676% of homes75% of homes
Price per ft²pricier than$753% of homes11% of homes
Living areabigger than4,138 ft²almost all homes94% of homes
Lot sizebigger than0.46 ac7% of homes17% of homes
Year builtnewer than191013% of homes5% of homes

About 401 Alameda St

How much is 401 Alameda St, San Acacio, CO worth?

The TopHap Estimate for 401 Alameda St, San Acacio, CO is $309,506 as of Sep 24, 2026. The likely range is $280,161 to $338,851. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 401 Alameda St, San Acacio, CO last sell?

401 Alameda St, San Acacio, CO last sold on Aug 4, 2004, according to the county's recorded deed.

How big is 401 Alameda St, San Acacio, CO?

401 Alameda St, San Acacio, CO has 2 bedrooms, 1 bathrooms, 4,138 square feet of living space and a 0.46-acre lot.

When was 401 Alameda St, San Acacio, CO built?

401 Alameda St, San Acacio, CO was built in 1910, making it 116 years old. It is a ranch home. The building has 2 stories.

What schools serve 401 Alameda St, San Acacio, CO?

401 Alameda St, San Acacio, CO is assigned to Centennial School (elementary), rated D-. All sit in Centennial School District R-1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 401 Alameda St, San Acacio, CO compare to other homes in Sanford 81151?

Among the 741 homes in Sanford 81151, it is worth more than 76% of them ($309,506 against a typical $212,196), its price per square foot is higher than 3% of them ($75 against a typical $149), it is bigger than almost all of them (4,138 ft² against a typical 1,436 ft²), its lot is bigger than 7% of them (0.46 ac against a typical 3.59 ac) and it is newer than 13% of them (1910 against a typical 1976). Measured against all of Costilla County, it is worth more than 75% 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 401 Alameda St, San Acacio, CO?

The 2025 property tax bill for 401 Alameda St, San Acacio, CO was $666. The county assessed it at $16,681.

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