Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$277,355$237 / 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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $195,000 on Aug 1, 2019

509 ALEXANDER DR

ROTTERDAM JUNCTION, NY 12150
3
Beds
1.5
Baths
1,170 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$277K
$257K low$298K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$195,000 · Aug 1, 2019
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$92,355
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$73,884
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.66%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$185,000
SUNMARK FCU · recorded Aug 1, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,137 (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.$175,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$168,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$175,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$269,200

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.33
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
4
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
62
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
88
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
12
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountySCHENECTADY
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.1985
Lot (acres)The size of the land the home sits on, from county records.0.26
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.Central
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, Attached
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.Shed · 60 ft²

Transaction History(5)

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
Jefferson Elementary SchoolB
Elementary · Grades KG–4 · 6.3 mi
M
Schalmont Middle SchoolD+
Middle · Grades 5–8 · 6.7 mi
H
Schalmont High SchoolC+
High · Grades 9–12 · 6.7 mi

District: Schalmont Central School District

Neighborhood · ZIP 12150These 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.91
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.4%
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.334
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.271 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$55,528
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$66,638
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

509 Alexander Dr 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.

  • Costs more per square foot than 96% of homes in Rotterdam Junction 12150
  • Smaller than 84% of homes in Schenectady County
  • Newer than 75% of homes in Schenectady County

What homes are worth in Rotterdam Junction 12150

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

This home
$168K$489K

This home is worth more than 61% of homes in Rotterdam Junction 12150.

How it measures up in Rotterdam Junction 12150

The dot is this home. The mark in the middle is the typical home in Rotterdam Junction 12150.

Estimated value$277,355
CheaperTypical $253,802Pricier

Pricier than 61% of homes nearby

Price per ft²$237
CheaperTypical $175Pricier

Pricier than 96% of homes nearby

Living area1,170 ft²
SmallerTypical 1,642 ft²Bigger

Bigger than 17% of homes nearby

Lot size0.26 ac
SmallerTypical 0.31 acBigger

Bigger than 36% of homes nearby

Year built1970
OlderTypical 1955Newer

Newer than 63% of homes nearby

How 509 Alexander Dr ranks against every home in each area.
MeasureThis homeRotterdam Junction 12150Schenectady County
Estimated valuepricier than$277,35561% of homes47% of homes
Price per ft²pricier than$23796% of homes88% of homes
Living areabigger than1,170 ft²17% of homes16% of homes
Lot sizebigger than0.26 ac36% of homes56% of homes
Year builtnewer than197063% of homes75% of homes

About 509 Alexander Dr

How much is 509 Alexander Dr, Rotterdam Junction, NY worth?

The TopHap Estimate for 509 Alexander Dr, Rotterdam Junction, NY is $277,355 as of Jul 14, 2026. The likely range is $256,620 to $298,090. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Alexander Dr, Rotterdam Junction, NY last sell?

509 Alexander Dr, Rotterdam Junction, NY last sold on Aug 1, 2019 for $195,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 509 Alexander Dr, Rotterdam Junction, NY?

509 Alexander Dr, Rotterdam Junction, NY has 3 bedrooms, 1.5 bathrooms, 1,170 square feet of living space and a 0.26-acre lot.

When was 509 Alexander Dr, Rotterdam Junction, NY built?

509 Alexander Dr, Rotterdam Junction, NY was built in 1970, making it 56 years old. It is a ranch home. The building has 1 story.

What schools serve 509 Alexander Dr, Rotterdam Junction, NY?

509 Alexander Dr, Rotterdam Junction, NY is assigned to Jefferson Elementary School (elementary), rated B; Schalmont Middle School (middle), rated D+; Schalmont High School (high), rated C+. All sit in Schalmont Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Alexander Dr, Rotterdam Junction, NY compare to other homes in Rotterdam Junction 12150?

Among the 339 homes in Rotterdam Junction 12150, it is worth more than 61% of them ($277,355 against a typical $253,802), its price per square foot is higher than 96% of them ($237 against a typical $175), it is bigger than 17% of them (1,170 ft² against a typical 1,642 ft²), its lot is bigger than 36% of them (0.26 ac against a typical 0.31 ac) and it is newer than 63% of them (1970 against a typical 1955). Measured against all of Schenectady County, it is worth more than 47% 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 509 Alexander Dr, Rotterdam Junction, NY?

The 2025 property tax bill for 509 Alexander Dr, Rotterdam Junction, NY was $7,137. The county assessed it at $175,000.

Closest homes

More homes in Rotterdam Junction 12150

Assigned schools

Explore the area

See this home in context

Open 509 Alexander Dr on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map