Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$561,706$312 / 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 Sep 24, 2026
Last sold for $246,000 on Mar 7, 2013

51 ROSEMONT AVE

FARMINGVILLE, NY 11738
5
Beds
2
Baths
1,800 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.
1959
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$562K
$530K low$593K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$246,000 · Mar 7, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,785 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$2,260 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$120
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$2,140
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$470,833

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
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.17
HeatingThe type of heating system in the home.Radiant
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Waterfront

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
Lynwood Avenue Elementary SchoolC-
Elementary · Grades KG–5 · 0.4 mi
H
Sachem High School EastB+
High · Grades 9–12 · 0.9 mi
M
Sagamore Middle SchoolB
Middle · Grades 6–8 · 1.8 mi

District: Sachem Central School District

Neighborhood · ZIP 11738These 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.36
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.65

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.2%
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.16,570
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,262 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$125,315
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$152,500
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Owner Tools

Do you own this home?
Claim this home

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

51 Rosemont 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 less than 80% of homes in Suffolk County
  • Costs less per square foot than 86% of homes in Suffolk County
  • Has a smaller lot than 94% of homes in Farmingville 11738
  • Older than 77% of homes in Farmingville 11738

What homes are worth in Farmingville 11738

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

This home
$369K$958K

This home is worth more than 25% of homes in Farmingville 11738.

How it measures up in Farmingville 11738

The dot is this home. The mark in the middle is the typical home in Farmingville 11738.

Estimated value$561,706
CheaperTypical $623,034Pricier

Pricier than 25% of homes nearby

Price per ft²$312
CheaperTypical $354Pricier

Pricier than 31% of homes nearby

Living area1,800 ft²
SmallerTypical 1,795 ft²Bigger

Bigger than 50% of homes nearby

Lot size0.17 ac
SmallerTypical 0.31 acBigger

Bigger than 6% of homes nearby

Year built1959
OlderTypical 1970Newer

Newer than 23% of homes nearby

How 51 Rosemont Ave ranks against every home in each area.
MeasureThis homeFarmingville 11738Suffolk County
Estimated valuepricier than$561,70625% of homes20% of homes
Price per ft²pricier than$31231% of homes14% of homes
Living areabigger than1,800 ft²50% of homes56% of homes
Lot sizebigger than0.17 ac6% of homes17% of homes
Year builtnewer than195923% of homes29% of homes

About 51 Rosemont Ave

How much is 51 Rosemont Ave, Farmingville, NY worth?

The TopHap Estimate for 51 Rosemont Ave, Farmingville, NY is $561,706 as of Sep 24, 2026. The likely range is $530,230 to $593,182. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 51 Rosemont Ave, Farmingville, NY last sell?

51 Rosemont Ave, Farmingville, NY last sold on Mar 7, 2013 for $246,000, according to the county's recorded deed.

How big is 51 Rosemont Ave, Farmingville, NY?

51 Rosemont Ave, Farmingville, NY has 5 bedrooms, 2 bathrooms, 1,800 square feet of living space and a 0.17-acre lot.

When was 51 Rosemont Ave, Farmingville, NY built?

51 Rosemont Ave, Farmingville, NY was built in 1959, making it 67 years old. It is a cape cod home. The building has 2 stories.

What schools serve 51 Rosemont Ave, Farmingville, NY?

51 Rosemont Ave, Farmingville, NY is assigned to Lynwood Avenue Elementary School (elementary), rated C-; Sachem High School East (high), rated B+; Sagamore Middle School (middle), rated B. All sit in Sachem Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 51 Rosemont Ave, Farmingville, NY compare to other homes in Farmingville 11738?

Among the 4,635 homes in Farmingville 11738, it is worth more than 25% of them ($561,706 against a typical $623,034), its price per square foot is higher than 31% of them ($312 against a typical $354), it is bigger than 50% of them (1,800 ft² against a typical 1,795 ft²), its lot is bigger than 6% of them (0.17 ac against a typical 0.31 ac) and it is newer than 23% of them (1959 against a typical 1970). Measured against all of Suffolk County, it is worth more than 20% 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 51 Rosemont Ave, Farmingville, NY?

The 2024 property tax bill for 51 Rosemont Ave, Farmingville, NY was $7,785. The county assessed it at $2,260.

More homes on Rosemont Ave

Closest homes

More homes in Farmingville 11738

Assigned schools

Explore the area

See this home in context

Open 51 Rosemont Ave 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