Suffolk County  »  11787  »  Demont St  »  18 Demont St

18 Demont Street, Smithtown, NY 11787 - Property report

Also known as: 18 Demont St

Property image for 18 Demont Street, Smithtown, NY 11787
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Property type

One Family Year-Round Residence (210)

Year built

1966

Acreage

0.25

General information

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Address
Primary address
18 Demont Street
ZIP code
11787
County
Suffolk
Village (SWIS code)
473489
Parcel ID
79-4-24

Owner

Find out who owns 18 Demont Street, Smithtown, NY 11787. Uncover corporate and individual owners with a free account.

Tax
Tax year
2025-2026
Current property tax
$16,518
Zoning & Use
Zoning
One-Family on 10,000 Square Feet of Lot Area (R-10S)
Building
Property type
One Family Year-Round Residence (210)
Building sq. ft.
2,802
Buildings on lot
1
Stories
2
Year built
1966
AC
Yes
Bedrooms
4
Bathrooms
2
Half bathrooms
1
Kitchens
1
Exterior wall
Wood
Building style
Colonial
Basement
Full
Heating type
Hot water/steam
Heating fuel
Oil
Lot
Acreage
0.25

Area overview

Walk score
11 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
40 /100.  Somewhat Bikeable
School district
473401

View more such as transportation, nearby schools and risk designations.

Ownership

Ownership information for 18 Demont Street, Smithtown, NY

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 18 Demont Street, Smithtown, NY 11787

No recently recorded sales for this property.

More about Suffolk County property records.

Title documents

No recently recorded documents for this property.

Tax

Property taxes for 18 Demont Street, Smithtown, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025-2026
Current property tax
$16,518
Base tax
$16,488
Recent tax assessments
Market value
$800,000
Assessed value
$6,400

More about Suffolk County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Market value Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $800,000 $6,400 2576.282 $16,488 +4.31%
2024-2025 $744,186 $6,400 2469.867 $15,807 +16.07%
2023-2024 $735,632 $6,400 2127.961 $13,619 +7.54%
2022-2023 $871,428 $6,100 2076.086 $12,664 -11.46%
2021-2022 $544,643 $6,100 2344.675 $14,303 +1.58%
2020-2021 $530,435 $6,100 2308.127 $14,080 -0.14%
2019-2020 $525,862 $6,100 2311.354 $14,099 +2.77%
2018-2019 $495,935 $6,100 2248.977 $13,719 +3.52%
2017-2018 $465,649 $6,100 2172.584 $13,253 +3.92%
2016-2017 $462,121 $6,100 2090.572 $12,752 -2.40%
Permits

Permit information for 18 Demont Street, Smithtown, NY

No recently recorded permits for this property.

Neighborhood

Smithtown residential market stats

Access a detailed real estate market overview of Smithtown so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Smithtown and compare it to other neighborhoods in Suffolk.

Median sale price

$735,000

2.8% Y-o-Y

Median price/sq. ft.

$448

16.4% Y-o-Y

Suffolk county median sale price

$677,000

5.9% Y-o-Y

Risk

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FEMA flood zones

FEMA flood zones
X

Transportation

Daily traffic map
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Access the detailed traffic volume map for 18 Demont Street, Smithtown, NY 11787 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Dogwood Elementary School 6 Public K-5 352 0.50
St Patrick Elementary School NR Private PK, K-8 463 0.72
St Patrick Elementary School NR Private PK, K-8 463 0.72
Smithtown Elementary School 6 Public K-5 514 0.93
Ss Philip & James School NR Private PK-8 214 1.37
Ss Philip & James School NR Private PK-8 214 1.37
Smithtown Christian School NR Private PK, K-12 529 1.75
Saint James Elementary School 7 Public K-5 474 1.84
Mount Pleasant Elementary School 6 Public K-5 492 1.87
Mills Pond Elementary School 8 Public K-5 372 2.33
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Nesaquake Middle School 7 Public 6-8 473 0.63
St Patrick Elementary School NR Private PK, K-8 463 0.72
Ss Philip & James School NR Private PK-8 214 1.37
Smithtown Christian School NR Private PK, K-12 529 1.75
Great Hollow Middle School 7 Public 6-8 828 1.78
Developmental Disabilities Institute NR Private 222 2.08
Harbor Country Day School NR Private PK-8 134 2.35
Hauppauge Middle School 6 Public 6-8 748 2.86
Accompsett Middle School 7 Public 6-8 532 3.02
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Smithtown High School East 10 Public 9-12 1,475 0.93
Smithtown Christian School NR Private PK, K-12 529 1.75
Developmental Disabilities Institute NR Private 222 2.08
Hauppauge High School 9 Public 9-12 1,079 3.05
Cleary School For The Deaf NR Private PK-12 79 3.14
Smithtown High School West 10 Public 9-12 1,270 3.17
Kings Park High School 9 Public 9-12 857 3.34
Gersh Academy NR Private 6-12 0 3.35
The Knox School NR Private 6-12 156 3.51
Sachem High School North 8 Public 9-12 1,923 4.56

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 18 Demont Street, Smithtown, NY

22 Demont St, Smithtown 7 Marlan CT, Smithtown 19 Blanchard St, Smithtown 23 Blanchard St, Smithtown 22 Pantzer St, Smithtown 21 Blanchard St, Smithtown 21 Demont St, Smithtown 23 Pantzer St, Smithtown 20 Reeves St, Smithtown 20 Demont St, Smithtown 22 Reeves St, Smithtown 5 Marlan CT, Smithtown 17 Blanchard St, Smithtown 10 Pia Blvd, Smithtown 21 Pantzer St, Smithtown 3 Marlan CT, Smithtown 23 Demont St, Smithtown 16 Demont St, Smithtown 22 Blanchard St, Smithtown 19 Ellbert St, Smithtown

Nearby ZIP codes for 18 Demont Street, Smithtown, NY

11716, Suffolk County, NY 11717, Suffolk County, NY 11720, Suffolk County, NY 11722, Suffolk County, NY 11725, Suffolk County, NY 11731, Suffolk County, NY 11733, Suffolk County, NY 11739, Suffolk County, NY 11749, Suffolk County, NY 11751, Suffolk County, NY 11752, Suffolk County, NY 11754, Suffolk County, NY 11755, Suffolk County, NY 11767, Suffolk County, NY 11768, Suffolk County, NY 11779, Suffolk County, NY 11780, Suffolk County, NY 11788, Suffolk County, NY 11790, Suffolk County, NY

Frequently asked questions

What is the year built for 18 Demont Street, Smithtown, NY 11787?

The development at 18 Demont Street, Smithtown, NY 11787 was built in 1966.

What is the total square footage of 18 Demont Street, Smithtown, NY 11787?

18 Demont Street, Smithtown, NY 11787 has a total of 2,802 square feet.

What is the assessed value of 18 Demont Street, Smithtown, NY 11787?

18 Demont Street, Smithtown, NY 11787 is currently assessed at $6,400.

What are the property taxes for 18 Demont Street, Smithtown, NY 11787?

The property taxes for 18 Demont Street, Smithtown, NY 11787 total $16,488.

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