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Single Family ResidenceResidential
$1,002,224$398 / 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 91How 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 $510,000 on Aug 10, 2017

29 ROUNDABOUT RD

SMITHTOWN, NY 11787
3
Beds
2.5
Baths
2,521 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.
0.72 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1M
$914K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$510,000 · Aug 10, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$17,721 (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.$6,885 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$765
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$6,120
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$860,625

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
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.72
HeatingThe type of heating system in the home.Yes
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
ViewThe type of view from the property, or another feature of the site that affects value.Suburban
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Shed · 140 ft²

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
Smithtown Elementary SchoolB
Elementary · Grades KG–5 · 0.6 mi
M
Accompsett Middle SchoolC+
Middle · Grades 6–8 · 2.4 mi
H
Smithtown High School WestA
High · Grades 9–12 · 2.6 mi

District: Smithtown Central School District

Neighborhood · ZIP 11787These 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.44
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

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.29%
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.1.1%
PopulationHow many people live in this area.34,997
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,227 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,428
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$168,182
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

29 Roundabout Rd 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 more than 85% of homes in Smithtown 11787
  • Costs less per square foot than 74% of homes in Smithtown 11787
  • Bigger than 85% of homes in Suffolk County
  • Has a bigger lot than 86% of homes in Smithtown 11787
  • Older than 88% of homes in Smithtown

What homes are worth in Smithtown 11787

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

This home
$538K$1.6M

This home is worth more than 85% of homes in Smithtown 11787.

How it measures up in Smithtown 11787

The dot is this home. The mark in the middle is the typical home in Smithtown 11787.

Estimated value$1,002,224
CheaperTypical $799,006Pricier

Pricier than 85% of homes nearby

Price per ft²$398
CheaperTypical $446Pricier

Pricier than 26% of homes nearby

Living area2,521 ft²
SmallerTypical 1,906 ft²Bigger

Bigger than 83% of homes nearby

Lot size0.72 ac
SmallerTypical 0.38 acBigger

Bigger than 86% of homes nearby

Year built1954
OlderTypical 1965Newer

Newer than 12% of homes nearby

How 29 Roundabout Rd ranks against every home in each area.
MeasureThis homeSmithtownSmithtown 11787Suffolk County
Estimated valuepricier than$1,002,22480% of homes85% of homes80% of homes
Price per ft²pricier than$39827% of homes26% of homes44% of homes
Living areabigger than2,521 ft²77% of homes83% of homes85% of homes
Lot sizebigger than0.72 ac83% of homes86% of homes84% of homes
Year builtnewer than195412% of homes12% of homes21% of homes

About 29 Roundabout Rd

How much is 29 Roundabout Rd, Smithtown, NY worth?

The TopHap Estimate for 29 Roundabout Rd, Smithtown, NY is $1,002,224 as of Jul 14, 2026. The likely range is $914,435 to $1,090,013. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 29 Roundabout Rd, Smithtown, NY last sell?

29 Roundabout Rd, Smithtown, NY last sold on Aug 10, 2017 for $510,000, according to the county's recorded deed.

How big is 29 Roundabout Rd, Smithtown, NY?

29 Roundabout Rd, Smithtown, NY has 3 bedrooms, 2.5 bathrooms, 2,521 square feet of living space and a 0.72-acre lot.

When was 29 Roundabout Rd, Smithtown, NY built?

29 Roundabout Rd, Smithtown, NY was built in 1954, making it 72 years old. It is a colonial home. The building has 1 story.

What schools serve 29 Roundabout Rd, Smithtown, NY?

29 Roundabout Rd, Smithtown, NY is assigned to Smithtown Elementary School (elementary), rated B; Accompsett Middle School (middle), rated C+; Smithtown High School West (high), rated A. All sit in Smithtown Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 29 Roundabout Rd, Smithtown, NY compare to other homes in Smithtown 11787?

Among the 11,478 homes in Smithtown 11787, it is worth more than 85% of them ($1,002,224 against a typical $799,006), its price per square foot is higher than 26% of them ($398 against a typical $446), it is bigger than 83% of them (2,521 ft² against a typical 1,906 ft²), its lot is bigger than 86% of them (0.72 ac against a typical 0.38 ac) and it is newer than 12% of them (1954 against a typical 1965). Measured against all of Suffolk County, it is worth more than 80% 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 29 Roundabout Rd, Smithtown, NY?

The 2024 property tax bill for 29 Roundabout Rd, Smithtown, NY was $17,721. The county assessed it at $6,885.

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