Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$968,851$439 / 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 87How 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 $495,000 on Aug 17, 2009

9 SEBASTIAN DR

RIVERHEAD, NY 11901
3
Beds
2
Baths
2,207 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.
0.92 ac
Lot SizeThe size of the land the home sits on, from county records.
1999
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$969K
$848K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$495,000 · Aug 17, 2009
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.$604,851
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$483,881
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.38%
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.$225,000
HOMEBRIDGE FINANCIAL SERVICES INC · R · recorded Nov 30, 2017
2nd 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.$139,000
TD BANK NA

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,581 (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.$67,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$11,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$55,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$821,078

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.Cape Cod
CountySUFFOLK
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2002
Lot (acres)The size of the land the home sits on, from county records.0.92
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
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.Yes
ViewThe type of view from the property, or another feature of the site that affects value.Canal
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 1,104 ft²

Transaction History(2)

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

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

E
Riley Avenue SchoolD
Elementary · Grades PK–4 · 2.6 mi
H
Riverhead Senior High SchoolC-
High · Grades 9–12 · 3.2 mi
M
Riverhead Middle SchoolD
Middle · Grades 6–8 · 3.4 mi

District: Riverhead Central 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%

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

9 Sebastian Dr 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 87% of homes in Riverhead 11901
  • Bigger than 83% of homes in Riverhead 11901
  • Has a bigger lot than 88% of homes in Suffolk County
  • Newer than 91% of homes in Baiting Hollow

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
$353K$1.7M

This home is worth more than 87% of 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$968,851
CheaperTypical $634,275Pricier

Pricier than 87% of homes nearby

Price per ft²$439
CheaperTypical $423Pricier

Pricier than 56% of homes nearby

Living area2,207 ft²
SmallerTypical 1,383 ft²Bigger

Bigger than 83% of homes nearby

Lot size0.92 ac
SmallerTypical 0.32 acBigger

Bigger than 87% of homes nearby

Year built1999
OlderTypical 1991Newer

Newer than 70% of homes nearby

How 9 Sebastian Dr ranks against every home in each area.
MeasureThis homeBaiting HollowRiverhead 11901Suffolk County
Estimated valuepricier than$968,85183% of homes87% of homes79% of homes
Price per ft²pricier than$43954% of homes56% of homes57% of homes
Living areabigger than2,207 ft²82% of homes83% of homes76% of homes
Lot sizebigger than0.92 ac85% of homes87% of homes88% of homes
Year builtnewer than199991% of homes70% of homes87% of homes

About 9 Sebastian Dr

How much is 9 Sebastian Dr, Riverhead, NY worth?

The TopHap Estimate for 9 Sebastian Dr, Riverhead, NY is $968,851 as of Jul 14, 2026. The likely range is $847,705 to $1,089,997. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9 Sebastian Dr, Riverhead, NY last sell?

9 Sebastian Dr, Riverhead, NY last sold on Aug 17, 2009 for $495,000, according to the county's recorded deed.

How big is 9 Sebastian Dr, Riverhead, NY?

9 Sebastian Dr, Riverhead, NY has 3 bedrooms, 2 bathrooms, 2,207 square feet of living space and a 0.92-acre lot.

When was 9 Sebastian Dr, Riverhead, NY built?

9 Sebastian Dr, Riverhead, NY was built in 1999, making it 27 years old. It is a cape cod home. The building has 1 story.

What schools serve 9 Sebastian Dr, Riverhead, NY?

9 Sebastian Dr, Riverhead, NY is assigned to Riley Avenue School (elementary), rated D; Riverhead Senior High School (high), rated C-; Riverhead Middle School (middle), rated D. All sit in Riverhead Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9 Sebastian Dr, Riverhead, NY compare to other homes in Riverhead 11901?

Among the 9,718 homes in Riverhead 11901, it is worth more than 87% of them ($968,851 against a typical $634,275), its price per square foot is higher than 56% of them ($439 against a typical $423), it is bigger than 83% of them (2,207 ft² against a typical 1,383 ft²), its lot is bigger than 87% of them (0.92 ac against a typical 0.32 ac) and it is newer than 70% of them (1999 against a typical 1991). Measured against all of Suffolk County, it is worth more than 79% 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 9 Sebastian Dr, Riverhead, NY?

The 2024 property tax bill for 9 Sebastian Dr, Riverhead, NY was $13,581. The county assessed it at $67,000.

Closest homes

More homes in Riverhead 11901

Assigned schools

Explore the area

See this home in context

Open 9 Sebastian Dr 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