Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$653,242$402 / 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 96How 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 $245,000 on Mar 6, 2009

843 JEFFERSON ST

BALDWIN, NY 11510
1
Baths
1,625 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.
4,000 ft²
Lot SizeThe size of the land the home sits on, from county records.
1966
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$653K
$624K low$682K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$245,000 · Mar 6, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,448 (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.$374 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$133
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$241
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$374
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$374,000

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.136 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.72%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

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.Split Level
CountyNASSAU
Lot (acres)The size of the land the home sits on, from county records.0.09
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

Neighborhood · ZIP 11510These 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.73
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.113
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.94

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.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.8%
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.34,663
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,243 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,415
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$171,718
Average tempThe average temperature here across a full year.54°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.56%

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

843 Jefferson 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 less than 86% of homes in Nassau County
  • Costs less per square foot than 88% of homes in Nassau County
  • Smaller than 68% of homes in Baldwin Harbor
  • Has a smaller lot than 98% of homes in Baldwin 11510
  • Newer than 91% of homes in Baldwin 11510

What homes are worth in Baldwin 11510

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

This home
$500K$996K

This home is worth more than 32% of homes in Baldwin 11510.

How it measures up in Baldwin 11510

The dot is this home. The mark in the middle is the typical home in Baldwin 11510.

Estimated value$653,242
CheaperTypical $695,445Pricier

Pricier than 32% of homes nearby

Price per ft²$402
CheaperTypical $436Pricier

Pricier than 32% of homes nearby

Living area1,625 ft²
SmallerTypical 1,620 ft²Bigger

Bigger than 51% of homes nearby

Lot size4,000 ft²
SmallerTypical 0.14 acBigger

Bigger than 2% of homes nearby

Year built1966
OlderTypical 1942Newer

Newer than 91% of homes nearby

How 843 Jefferson St ranks against every home in each area.
MeasureThis homeBaldwin HarborBaldwin 11510Nassau County
Estimated valuepricier than$653,24225% of homes32% of homes14% of homes
Price per ft²pricier than$40249% of homes32% of homes12% of homes
Living areabigger than1,625 ft²32% of homes51% of homes43% of homes
Lot sizebigger than4,000 ft²3% of homes2% of homes4% of homes
Year builtnewer than196687% of homes91% of homes84% of homes

About 843 Jefferson St

How much is 843 Jefferson St, Baldwin, NY worth?

The TopHap Estimate for 843 Jefferson St, Baldwin, NY is $653,242 as of Sep 24, 2026. The likely range is $624,078 to $682,406. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 843 Jefferson St, Baldwin, NY last sell?

843 Jefferson St, Baldwin, NY last sold on Mar 6, 2009 for $245,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 843 Jefferson St, Baldwin, NY?

843 Jefferson St, Baldwin, NY has 1 bathrooms, 1,625 square feet of living space and a 0.09-acre lot.

When was 843 Jefferson St, Baldwin, NY built?

843 Jefferson St, Baldwin, NY was built in 1966, making it 60 years old. It is a split level home. The building has 1 story.

How does 843 Jefferson St, Baldwin, NY compare to other homes in Baldwin 11510?

Among the 9,636 homes in Baldwin 11510, it is worth more than 32% of them ($653,242 against a typical $695,445), its price per square foot is higher than 32% of them ($402 against a typical $436), it is bigger than 51% of them (1,625 ft² against a typical 1,620 ft²), its lot is bigger than 2% of them (4,000 ft² against a typical 0.14 ac) and it is newer than 91% of them (1966 against a typical 1942). Measured against all of Nassau County, it is worth more than 14% 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 843 Jefferson St, Baldwin, NY?

The 2025 property tax bill for 843 Jefferson St, Baldwin, NY was $10,448. The county assessed it at $374.

More homes on Jefferson St

Closest homes

More homes in Baldwin 11510

Explore the area

See this home in context

Open 843 Jefferson St 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