Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$606,264$363 / 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 95How 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 $570,000 on Mar 16, 2022

4 RICHMOND ST

ISLIP, NY 11751
0
Baths
1,668 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.
1956
Year BuiltThe year the home was originally built, according to county records.

Valuation

$606K
$575K low$637K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$570,000 · Mar 16, 2022
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$168,664
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$134,931
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.64%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$437,600
CROSSCOUNTRY MORTGAGE INC · P · recorded Mar 16, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,817 (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.$32,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$25,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$457,747

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.0.17
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

Transaction History(5)

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(3)

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

E
Wing Elementary School
Elementary · Grades KG–1 · 0.6 mi
H
Islip High SchoolB+
High · Grades 9–12 · 1.0 mi
M
Islip Middle SchoolC+
Middle · Grades 7–8 · 1.2 mi

District: Islip Union Free School District

Neighborhood · ZIP 11751These 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.102
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.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
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.15,527
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,057 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$119,596
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,796
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

4 Richmond 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 70% of homes in Suffolk County
  • Costs less per square foot than 79% of homes in Islip 11751
  • Has a smaller lot than 87% of homes in Islip
  • Older than 75% of homes in Suffolk County

What homes are worth in Islip 11751

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

This home
$465K$1.9M

This home is worth more than 34% of homes in Islip 11751.

How it measures up in Islip 11751

The dot is this home. The mark in the middle is the typical home in Islip 11751.

Estimated value$606,264
CheaperTypical $651,429Pricier

Pricier than 34% of homes nearby

Price per ft²$363
CheaperTypical $444Pricier

Pricier than 21% of homes nearby

Living area1,668 ft²
SmallerTypical 1,654 ft²Bigger

Bigger than 51% of homes nearby

Lot size0.17 ac
SmallerTypical 0.24 acBigger

Bigger than 16% of homes nearby

Year built1956
OlderTypical 1957Newer

Newer than 48% of homes nearby

How 4 Richmond St ranks against every home in each area.
MeasureThis homeIslipIslip 11751Suffolk County
Estimated valuepricier than$606,26437% of homes34% of homes30% of homes
Price per ft²pricier than$36324% of homes21% of homes31% of homes
Living areabigger than1,668 ft²50% of homes51% of homes49% of homes
Lot sizebigger than0.17 ac13% of homes16% of homes17% of homes
Year builtnewer than195642% of homes48% of homes25% of homes

About 4 Richmond St

How much is 4 Richmond St, Islip, NY worth?

The TopHap Estimate for 4 Richmond St, Islip, NY is $606,264 as of Jul 14, 2026. The likely range is $575,078 to $637,450. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4 Richmond St, Islip, NY last sell?

4 Richmond St, Islip, NY last sold on Mar 16, 2022 for $570,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 4 Richmond St, Islip, NY?

4 Richmond St, Islip, NY has 1,668 square feet of living space and a 0.17-acre lot.

When was 4 Richmond St, Islip, NY built?

4 Richmond St, Islip, NY was built in 1956, making it 70 years old.

What schools serve 4 Richmond St, Islip, NY?

4 Richmond St, Islip, NY is assigned to Wing Elementary School (elementary); Islip High School (high), rated B+; Islip Middle School (middle), rated C+. All sit in Islip Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4 Richmond St, Islip, NY compare to other homes in Islip 11751?

Among the 4,166 homes in Islip 11751, it is worth more than 34% of them ($606,264 against a typical $651,429), its price per square foot is higher than 21% of them ($363 against a typical $444), it is bigger than 51% of them (1,668 ft² against a typical 1,654 ft²), its lot is bigger than 16% of them (0.17 ac against a typical 0.24 ac) and it is newer than 48% of them (1956 against a typical 1957). Measured against all of Suffolk County, it is worth more than 30% 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 4 Richmond St, Islip, NY?

The 2024 property tax bill for 4 Richmond St, Islip, NY was $10,817. The county assessed it at $32,500.

Closest homes

More homes in Islip 11751

Assigned schools

Explore the area

See this home in context

Open 4 Richmond 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