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Single Family ResidenceResidential
$319,121$122 / 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
Last sold for $150,000 on Nov 22, 2010

21 GRANT AVE

AMSTERDAM, NY 12010
4
Beds
2.5
Baths
2,614 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1925
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$319K
$290K low$348K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$150,000 · Nov 22, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,277 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$97,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$14,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$82,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$97,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$285,294

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.Traditional/Old
CountyMONTGOMERY
Lot (acres)The size of the land the home sits on, from county records.0.23
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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 · 326 ft²

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

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

E
Raphael J Mcnulty Academy for Intern Studies and LiteracyF
Elementary · Grades PK–5 · 0.5 mi
M
Wilbur H Lynch Literacy AcademyD-
Middle · Grades 6–8 · 0.5 mi
H
Amsterdam High SchoolD
High · Grades 9–12 · 1.2 mi

District: Amsterdam City School District

Neighborhood · ZIP 12010These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.66

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.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.30,758
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.230 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,310
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$76,860
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.42 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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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

21 Grant Ave 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 84% of homes in Montgomery County
  • Costs less per square foot than 82% of homes in Amsterdam 12010
  • Bigger than 88% of homes in Montgomery County
  • Has a smaller lot than 66% of homes in Montgomery County

What homes are worth in Amsterdam 12010

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

This home
$85K$631K

This home is worth more than 72% of homes in Amsterdam 12010.

How it measures up in Amsterdam 12010

The dot is this home. The mark in the middle is the typical home in Amsterdam 12010.

Estimated value$319,121
CheaperTypical $247,375Pricier

Pricier than 72% of homes nearby

Price per ft²$122
CheaperTypical $172Pricier

Pricier than 18% of homes nearby

Living area2,614 ft²
SmallerTypical 1,736 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.23 ac
SmallerTypical 0.29 acBigger

Bigger than 44% of homes nearby

Year built1925
OlderTypical 1940Newer

Newer than 41% of homes nearby

How 21 Grant Ave ranks against every home in each area.
MeasureThis homeAmsterdam 12010Montgomery County
Estimated valuepricier than$319,12172% of homes84% of homes
Price per ft²pricier than$12218% of homes40% of homes
Living areabigger than2,614 ft²87% of homes88% of homes
Lot sizebigger than0.23 ac44% of homes34% of homes
Year builtnewer than192541% of homes44% of homes

About 21 Grant Ave

How much is 21 Grant Ave, Amsterdam, NY worth?

The TopHap Estimate for 21 Grant Ave, Amsterdam, NY is $319,121 as of Sep 24, 2026. The likely range is $290,087 to $348,155. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Grant Ave, Amsterdam, NY last sell?

21 Grant Ave, Amsterdam, NY last sold on Nov 22, 2010 for $150,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Grant Ave, Amsterdam, NY?

21 Grant Ave, Amsterdam, NY has 4 bedrooms, 2.5 bathrooms, 2,614 square feet of living space and a 0.23-acre lot.

When was 21 Grant Ave, Amsterdam, NY built?

21 Grant Ave, Amsterdam, NY was built in 1925, making it 101 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 21 Grant Ave, Amsterdam, NY?

21 Grant Ave, Amsterdam, NY is assigned to Raphael J Mcnulty Academy for Intern Studies and Literacy (elementary), rated F; Wilbur H Lynch Literacy Academy (middle), rated D-; Amsterdam High School (high), rated D. All sit in Amsterdam City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Grant Ave, Amsterdam, NY compare to other homes in Amsterdam 12010?

Among the 9,295 homes in Amsterdam 12010, it is worth more than 72% of them ($319,121 against a typical $247,375), its price per square foot is higher than 18% of them ($122 against a typical $172), it is bigger than 87% of them (2,614 ft² against a typical 1,736 ft²), its lot is bigger than 44% of them (0.23 ac against a typical 0.29 ac) and it is newer than 41% of them (1925 against a typical 1940). Measured against all of Montgomery County, it is worth more than 84% 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 21 Grant Ave, Amsterdam, NY?

The 2026 property tax bill for 21 Grant Ave, Amsterdam, NY was $4,277. The county assessed it at $97,000.

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Assigned schools

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