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Single Family ResidenceResidential
$723,245
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
Last sold for $320,000 on Dec 17, 2015

123 RIDDLE ST

BRENTWOOD, NY 11717
0
Baths
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$723K
$673K low$774K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$320,000 · Dec 17, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,204 (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.$41,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$7,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$33,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$577,465

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.25
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.

Neighborhood · ZIP 11717These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.70

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.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.62,322
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,773 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$105,686
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$149,062
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

123 Riddle 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.

  • Worth more than 95% of homes in Brentwood 11717

What homes are worth in Brentwood 11717

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

This home
$448K$858K

This home is worth more than 95% of homes in Brentwood 11717.

How it measures up in Brentwood 11717

The dot is this home. The mark in the middle is the typical home in Brentwood 11717.

Estimated value$723,245
CheaperTypical $595,808Pricier

Pricier than 95% of homes nearby

Lot size0.25 ac
SmallerTypical 0.25 acBigger

Bigger than 64% of homes nearby

How 123 Riddle St ranks against every home in each area.
MeasureThis homeBrentwood 11717Suffolk County
Estimated valuepricier than$723,24595% of homes55% of homes
Lot sizebigger than0.25 ac64% of homes46% of homes

About 123 Riddle St

How much is 123 Riddle St, Brentwood, NY worth?

The TopHap Estimate for 123 Riddle St, Brentwood, NY is $723,245 as of Jul 14, 2026. The likely range is $672,543 to $773,947. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 123 Riddle St, Brentwood, NY last sell?

123 Riddle St, Brentwood, NY last sold on Dec 17, 2015 for $320,000, according to the county's recorded deed.

How does 123 Riddle St, Brentwood, NY compare to other homes in Brentwood 11717?

Among the 10,787 homes in Brentwood 11717, it is worth more than 95% of them ($723,245 against a typical $595,808) and its lot is bigger than 64% of them (0.25 ac against a typical 0.25 ac). Measured against all of Suffolk County, it is worth more than 55% 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 123 Riddle St, Brentwood, NY?

The 2024 property tax bill for 123 Riddle St, Brentwood, NY was $10,204. The county assessed it at $41,000.

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