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Single Family ResidenceResidential
$297,254$177 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

18 SOUTHERN AVE

RENSSELAER, NY 12144
4
Beds
1
Baths
1,680 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$297K
$280K low$315K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$569 (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.$280,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$17,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$263,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$175,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$280,000

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.Colonial
CountyRENSSELAER
Lot (acres)The size of the land the home sits on, from county records.0.17
HeatingThe type of heating system in the home.Hot Water
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, Basement
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
Red Mill SchoolB+
Elementary · Grades PK–5 · 0.5 mi
H
Columbia High SchoolA-
High · Grades 9–12 · 2.1 mi
M
Howard L Goff SchoolB+
Middle · Grades 6–8 · 2.2 mi

District: East Greenbush Central School District

Neighborhood · ZIP 12144These 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.113
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.57

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
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.1.1%
PopulationHow many people live in this area.20,884
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,154 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,823
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$101,873
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.39 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

18 Southern 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.

  • Costs less per square foot than 69% of homes in Rensselaer 12144
  • Has a smaller lot than 75% of homes in Rensselaer County
  • Newer than 69% of homes in Rensselaer 12144

What homes are worth in Rensselaer 12144

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

This home
$116K$707K

This home is worth more than 54% of homes in Rensselaer 12144.

How it measures up in Rensselaer 12144

The dot is this home. The mark in the middle is the typical home in Rensselaer 12144.

Estimated value$297,254
CheaperTypical $284,398Pricier

Pricier than 54% of homes nearby

Price per ft²$177
CheaperTypical $205Pricier

Pricier than 31% of homes nearby

Living area1,680 ft²
SmallerTypical 1,541 ft²Bigger

Bigger than 59% of homes nearby

Lot size0.17 ac
SmallerTypical 0.2 acBigger

Bigger than 42% of homes nearby

Year built1979
OlderTypical 1955Newer

Newer than 69% of homes nearby

How 18 Southern Ave ranks against every home in each area.
MeasureThis homeRensselaer 12144Rensselaer County
Estimated valuepricier than$297,25454% of homes47% of homes
Price per ft²pricier than$17731% of homes34% of homes
Living areabigger than1,680 ft²59% of homes51% of homes
Lot sizebigger than0.17 ac42% of homes25% of homes
Year builtnewer than197969% of homes69% of homes

About 18 Southern Ave

How much is 18 Southern Ave, Rensselaer, NY worth?

The TopHap Estimate for 18 Southern Ave, Rensselaer, NY is $297,254 as of Aug 30, 2026. The likely range is $279,806 to $314,702. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Southern Ave, Rensselaer, NY last sell?

18 Southern Ave, Rensselaer, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 18 Southern Ave, Rensselaer, NY?

18 Southern Ave, Rensselaer, NY has 4 bedrooms, 1 bathrooms, 1,680 square feet of living space and a 0.17-acre lot.

When was 18 Southern Ave, Rensselaer, NY built?

18 Southern Ave, Rensselaer, NY was built in 1979, making it 47 years old. It is a colonial home. The building has 2 stories.

What schools serve 18 Southern Ave, Rensselaer, NY?

18 Southern Ave, Rensselaer, NY is assigned to Red Mill School (elementary), rated B+; Columbia High School (high), rated A-; Howard L Goff School (middle), rated B+. All sit in East Greenbush Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Southern Ave, Rensselaer, NY compare to other homes in Rensselaer 12144?

Among the 6,575 homes in Rensselaer 12144, it is worth more than 54% of them ($297,254 against a typical $284,398), its price per square foot is higher than 31% of them ($177 against a typical $205), it is bigger than 59% of them (1,680 ft² against a typical 1,541 ft²), its lot is bigger than 42% of them (0.17 ac against a typical 0.2 ac) and it is newer than 69% of them (1979 against a typical 1955). Measured against all of Rensselaer 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 18 Southern Ave, Rensselaer, NY?

The 2025 property tax bill for 18 Southern Ave, Rensselaer, NY was $569. The county assessed it at $280,000.

More homes on Southern Ave

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