Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$294,139$195 / 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

21 STOCK LN

RENSSELAER, NY 12144
3
Beds
1.5
Baths
1,512 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.
0.29 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$294K
$274K low$314K high
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.$294,139
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$235,311

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,202 (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.$295,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$29,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$266,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$182,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$295,000

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.Cape Cod
CountyRENSSELAER
Lot (acres)The size of the land the home sits on, from county records.0.29
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Red Mill SchoolB+
Elementary · Grades PK–5 · 0.5 mi
H
Columbia High SchoolA-
High · Grades 9–12 · 1.3 mi
M
Howard L Goff SchoolB+
Middle · Grades 6–8 · 2.1 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%

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.Yes

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 Stock Ln 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.

  • Has a bigger lot than 67% 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
$125K$726K

This home is worth more than 51% 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$294,139
CheaperTypical $291,574Pricier

Pricier than 51% of homes nearby

Price per ft²$195
CheaperTypical $214Pricier

Pricier than 38% of homes nearby

Living area1,512 ft²
SmallerTypical 1,536 ft²Bigger

Bigger than 49% of homes nearby

Lot size0.29 ac
SmallerTypical 0.2 acBigger

Bigger than 67% of homes nearby

Year built1955
OlderTypical 1955Newer

Newer than 50% of homes nearby

How 21 Stock Ln ranks against every home in each area.
MeasureThis homeRensselaer 12144Rensselaer County
Estimated valuepricier than$294,13951% of homes44% of homes
Price per ft²pricier than$19538% of homes42% of homes
Living areabigger than1,512 ft²49% of homes41% of homes
Lot sizebigger than0.29 ac67% of homes38% of homes
Year builtnewer than195550% of homes48% of homes

About 21 Stock Ln

How much is 21 Stock Ln, Rensselaer, NY worth?

The TopHap Estimate for 21 Stock Ln, Rensselaer, NY is $294,139 as of Jul 14, 2026. The likely range is $274,079 to $314,199. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Stock Ln, Rensselaer, NY last sell?

21 Stock Ln, Rensselaer, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Stock Ln, Rensselaer, NY?

21 Stock Ln, Rensselaer, NY has 3 bedrooms, 1.5 bathrooms, 1,512 square feet of living space and a 0.29-acre lot.

When was 21 Stock Ln, Rensselaer, NY built?

21 Stock Ln, Rensselaer, NY was built in 1955, making it 71 years old. It is a cape cod home. The building has 1 story.

What schools serve 21 Stock Ln, Rensselaer, NY?

21 Stock Ln, 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 21 Stock Ln, Rensselaer, NY compare to other homes in Rensselaer 12144?

Among the 6,575 homes in Rensselaer 12144, it is worth more than 51% of them ($294,139 against a typical $291,574), its price per square foot is higher than 38% of them ($195 against a typical $214), it is bigger than 49% of them (1,512 ft² against a typical 1,536 ft²), its lot is bigger than 67% of them (0.29 ac against a typical 0.2 ac) and it is newer than 50% of them (1955 against a typical 1955). Measured against all of Rensselaer County, it is worth more than 44% 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 Stock Ln, Rensselaer, NY?

The 2025 property tax bill for 21 Stock Ln, Rensselaer, NY was $6,202. The county assessed it at $295,000.

Closest homes

More homes in Rensselaer 12144

Assigned schools

Explore the area

See this home in context

Open 21 Stock Ln 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