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Single Family ResidenceResidential
$319,022$205 / 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 85How 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

850 STATE ROUTE 55A

GRAHAMSVILLE, NY 12740
2
Beds
1.5
Baths
1,560 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.
6 ac
Lot SizeThe size of the land the home sits on, from county records.
1958
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$319K
$270K low$368K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,085 (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.$3,525 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$2,825
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$3,525
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$156,700

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
CountySULLIVAN
Lot (acres)The size of the land the home sits on, from county records.6.00
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
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(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.

M
Tri-Valley Secondary SchoolB-
Middle · Grades 7–12 · 2.3 mi
E
Tri-Valley Elementary SchoolC
Elementary · Grades PK–6 · 2.3 mi

District: Tri-Valley Central School District

Neighborhood · ZIP 12740These 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.78
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
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.70%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.1,762
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.24 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$71,358
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$90,096
Average tempThe average temperature here across a full year.43°F
Annual precipHow much rain and melted snow falls here in a typical year.56 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

850 State Route 55a 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 83% of homes in Sullivan County
  • Older than 73% of homes in Grahamsville 12740

What homes are worth in Grahamsville 12740

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

This home
$133K$831K

This home is worth more than 53% of homes in Grahamsville 12740.

How it measures up in Grahamsville 12740

The dot is this home. The mark in the middle is the typical home in Grahamsville 12740.

Estimated value$319,022
CheaperTypical $314,249Pricier

Pricier than 53% of homes nearby

Price per ft²$205
CheaperTypical $212Pricier

Pricier than 44% of homes nearby

Living area1,560 ft²
SmallerTypical 1,396 ft²Bigger

Bigger than 62% of homes nearby

Lot size6 ac
SmallerTypical 3.01 acBigger

Bigger than 73% of homes nearby

Year built1958
OlderTypical 1970Newer

Newer than 27% of homes nearby

How 850 State Route 55a ranks against every home in each area.
MeasureThis homeGrahamsville 12740Sullivan County
Estimated valuepricier than$319,02253% of homes47% of homes
Price per ft²pricier than$20544% of homes45% of homes
Living areabigger than1,560 ft²62% of homes55% of homes
Lot sizebigger than6 ac73% of homes83% of homes
Year builtnewer than195827% of homes37% of homes

About 850 State Route 55a

How much is 850 State Route 55a, Grahamsville, NY worth?

The TopHap Estimate for 850 State Route 55a, Grahamsville, NY is $319,022 as of Aug 30, 2026. The likely range is $269,773 to $368,271. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 850 State Route 55a, Grahamsville, NY last sell?

850 State Route 55a, Grahamsville, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 850 State Route 55a, Grahamsville, NY?

850 State Route 55a, Grahamsville, NY has 2 bedrooms, 1.5 bathrooms, 1,560 square feet of living space and a 6.00-acre lot.

When was 850 State Route 55a, Grahamsville, NY built?

850 State Route 55a, Grahamsville, NY was built in 1958, making it 68 years old. It is a cape cod home. The building has 1 story.

What schools serve 850 State Route 55a, Grahamsville, NY?

850 State Route 55a, Grahamsville, NY is assigned to Tri-Valley Secondary School (middle), rated B-; Tri-Valley Elementary School (elementary), rated C. All sit in Tri-Valley Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 850 State Route 55a, Grahamsville, NY compare to other homes in Grahamsville 12740?

Among the 914 homes in Grahamsville 12740, it is worth more than 53% of them ($319,022 against a typical $314,249), its price per square foot is higher than 44% of them ($205 against a typical $212), it is bigger than 62% of them (1,560 ft² against a typical 1,396 ft²), its lot is bigger than 73% of them (6 ac against a typical 3.01 ac) and it is newer than 27% of them (1958 against a typical 1970). Measured against all of Sullivan 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 850 State Route 55a, Grahamsville, NY?

The 2025 property tax bill for 850 State Route 55a, Grahamsville, NY was $3,085. The county assessed it at $3,525.

More homes on State Route 55a

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More homes in Grahamsville 12740

Assigned schools

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