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Single Family ResidenceResidential
$5,029,384$1,489 / 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 86How 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

31 LEWIS ST

RIVERHEAD, NY 11901
5
Beds
3
Baths
3,377 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.
0.44 ac
Lot SizeThe size of the land the home sits on, from county records.
1997
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$5M
$4.3M low$5.7M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,327 (2023)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$2,364,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,741,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$623,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$4,076,207

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.Mobile Home
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.44
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
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
ViewThe type of view from the property, or another feature of the site that affects value.Inferior
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 876 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Southampton Elementary SchoolC
Elementary · Grades PK–4 · 0.2 mi
M
Southampton Intermediate SchoolC
Middle · Grades 5–8 · 0.4 mi
H
Southampton High SchoolC+
High · Grades 9–12 · 0.5 mi

District: Southampton Union Free School District

Neighborhood · ZIP 11901These 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.129
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.50

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.90%
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.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.29,638
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.531 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$77,609
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,711
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

31 Lewis St 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.

  • Among the most valuable homes in Riverhead 11901
  • Among the highest price per square foot in Riverhead 11901
  • Bigger than 96% of homes in Riverhead 11901
  • Has a bigger lot than 68% of homes in Suffolk County
  • Newer than 84% of homes in Suffolk County

What homes are worth in Riverhead 11901

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

This home
$339K$1.9M

This home is worth more than almost all homes in Riverhead 11901.

How it measures up in Riverhead 11901

The dot is this home. The mark in the middle is the typical home in Riverhead 11901.

Estimated value$5,029,384
CheaperTypical $607,454Pricier

Pricier than almost all homes nearby

Price per ft²$1489
CheaperTypical $405Pricier

Pricier than almost all homes nearby

Living area3,377 ft²
SmallerTypical 1,383 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.44 ac
SmallerTypical 0.31 acBigger

Bigger than 64% of homes nearby

Year built1997
OlderTypical 1991Newer

Newer than 68% of homes nearby

How 31 Lewis St ranks against every home in each area.
MeasureThis homeRiverhead 11901Suffolk County
Estimated valuepricier than$5,029,384almost all homes98% of homes
Price per ft²pricier than$1489almost all homes98% of homes
Living areabigger than3,377 ft²96% of homes95% of homes
Lot sizebigger than0.44 ac64% of homes68% of homes
Year builtnewer than199768% of homes84% of homes

About 31 Lewis St

How much is 31 Lewis St, Riverhead, NY worth?

The TopHap Estimate for 31 Lewis St, Riverhead, NY is $5,029,384 as of Sep 24, 2026. The likely range is $4,316,213 to $5,742,555. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31 Lewis St, Riverhead, NY last sell?

31 Lewis St, Riverhead, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 31 Lewis St, Riverhead, NY?

31 Lewis St, Riverhead, NY has 5 bedrooms, 3 bathrooms, 3,377 square feet of living space and a 0.44-acre lot.

When was 31 Lewis St, Riverhead, NY built?

31 Lewis St, Riverhead, NY was built in 1997, making it 29 years old. It is a mobile home home. The building has 2 stories.

What schools serve 31 Lewis St, Riverhead, NY?

31 Lewis St, Riverhead, NY is assigned to Southampton Elementary School (elementary), rated C; Southampton Intermediate School (middle), rated C; Southampton High School (high), rated C+. All sit in Southampton Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 31 Lewis St, Riverhead, NY compare to other homes in Riverhead 11901?

Among the 9,726 homes in Riverhead 11901, it is worth more than almost all of them ($5,029,384 against a typical $607,454), its price per square foot is higher than almost all of them ($1489 against a typical $405), it is bigger than 96% of them (3,377 ft² against a typical 1,383 ft²), its lot is bigger than 64% of them (0.44 ac against a typical 0.31 ac) and it is newer than 68% of them (1997 against a typical 1991). Measured against all of Suffolk County, it is worth more than 98% 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 31 Lewis St, Riverhead, NY?

The 2023 property tax bill for 31 Lewis St, Riverhead, NY was $3,327. The county assessed it at $2,364,200.

More homes on Lewis St

Closest homes

More homes in Riverhead 11901

Assigned schools

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