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Duplex (2 Units, Any Combination)Residential
Last sold for $412,000 on Jun 23, 2004

18 ROTTKAMP ST

VALLEY STREAM, NY 11580
3
Baths
1,885 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.
1941
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$412,000 · Jun 23, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,808 (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.$534 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$196
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$338
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$534
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$534,000

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.11 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Colonial
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
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 112 ft²Patio · 112 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.

Foreclosure Filings(6)

Neighborhood · ZIP 11580These 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.63
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
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.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.6%
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.43,040
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.11,017 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$129,895
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$156,272
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%

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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

18 Rottkamp 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.

  • Bigger than 85% of homes in North Valley Stream
  • Has a smaller lot than 98% of homes in North Valley Stream
  • Older than 85% of homes in North Valley Stream

How it measures up in Valley Stream 11580

The dot is this home. The mark in the middle is the typical home in Valley Stream 11580.

Living area1,885 ft²
SmallerTypical 1,407 ft²Bigger

Bigger than 83% of homes nearby

Lot size4,000 ft²
SmallerTypical 0.12 acBigger

Bigger than 5% of homes nearby

Year built1941
OlderTypical 1949Newer

Newer than 29% of homes nearby

How 18 Rottkamp St ranks against every home in each area.
MeasureThis homeNorth Valley StreamValley Stream 11580Nassau County
Living areabigger than1,885 ft²85% of homes83% of homes58% of homes
Lot sizebigger than4,000 ft²2% of homes5% of homes4% of homes
Year builtnewer than194115% of homes29% of homes24% of homes

About 18 Rottkamp St

When did 18 Rottkamp St, Valley Stream, NY last sell?

18 Rottkamp St, Valley Stream, NY last sold on Jun 23, 2004 for $412,000, according to the county's recorded deed.

How big is 18 Rottkamp St, Valley Stream, NY?

18 Rottkamp St, Valley Stream, NY has 3 bathrooms, 1,885 square feet of living space and a 0.09-acre lot.

When was 18 Rottkamp St, Valley Stream, NY built?

18 Rottkamp St, Valley Stream, NY was built in 1941, making it 85 years old. It is a colonial home. The building has 2 stories.

How does 18 Rottkamp St, Valley Stream, NY compare to other homes in Valley Stream 11580?

Among the 10,974 homes in Valley Stream 11580, it is bigger than 83% of them (1,885 ft² against a typical 1,407 ft²), its lot is bigger than 5% of them (4,000 ft² against a typical 0.12 ac) and it is newer than 29% of them (1941 against a typical 1949). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 18 Rottkamp St, Valley Stream, NY?

The 2025 property tax bill for 18 Rottkamp St, Valley Stream, NY was $13,808. The county assessed it at $534.

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