| Primary address | 18 Demont Street, Smithtown |
| Zip code | 11787 |
| County | Suffolk |
| Municipality | Smithtown |
| Parcel ID | 79-4-24 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $16,518 |
| Building sqft | 2,802 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.25 |
| Year built | 1966 |
| Stories | 2 |
| Bedrooms | 4 |
| Bathrooms | 2 |
| Half bathrooms | 1 |
| Zoning district | Register |
| School district | Smithtown |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
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18 Demont Street, Smithtown, NY 11787 was built in 1966 and has a total of 2,802 square feet.
What is the assessed value of 18 Demont Street, Smithtown, NY 11787 and the property tax paid?Assessed at $6,400, the tax amount paid for 18 Demont Street, Smithtown, NY 11787 is $16,488.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 18 Demont Street, Smithtown, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 18 Demont Street, Smithtown, NY 11787. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $16,488 |
| Current property tax | $16,518 |
| Market value | $800,000 |
| Assessed value | $6,400 |
Here's the assessment & property tax history for 18 Demont Street, Smithtown, including the evolution of the total tax rate and corresponding property tax.
| Year | Market value | Assessment value | Total tax rate | Property tax | Year over year 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% |
The complete history of permits filed for 18 Demont Street, Smithtown, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.
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 County.
Create a free account to unlock extended information for 18 Demont Street, Smithtown, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| FEMA flood zone(s) | X (See more on map) |
Access the detailed traffic volume map for 18 Demont Street, Smithtown to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
| View daily traffic map |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| 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 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| 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 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| 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 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 18 Demont Street, Smithtown.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 22 Demont St, Smithtown | 2,802 | 04/12/2019 | $525,000 |
| 7 Marlan CT, Smithtown | 03/29/2021 | ||
| 19 Blanchard St, Smithtown | 2,122 | 10/01/2015 | |
| 23 Blanchard St, Smithtown | 10/16/2018 | $450,000 | |
| 22 Pantzer St, Smithtown | 2,341 | 06/11/2025 | |
| 21 Blanchard St, Smithtown | 12/22/2014 | ||
| 21 Demont St, Smithtown | 2,898 | 09/14/1995 | $215,000 |
| 23 Pantzer St, Smithtown | 2,341 | ||
| 20 Reeves St, Smithtown | 2,341 | ||
| 20 Demont St, Smithtown | 3,347 | 09/28/2016 | |
| 22 Reeves St, Smithtown | 1,756 | 11/12/2020 | $540,000 |
| 5 Marlan CT, Smithtown | 1,752 | 05/03/2022 | $654,500 |
| 17 Blanchard St, Smithtown | 3,214 | 08/21/1997 | $178,500 |
| 10 Pia Blvd, Smithtown | 11/04/2009 | ||
| 21 Pantzer St, Smithtown | 2,341 | 12/23/2013 | $431,000 |
| 3 Marlan CT, Smithtown | 03/15/1993 | $182,000 | |
| 23 Demont St, Smithtown | 2,123 | 08/21/2025 | $775,000 |
| 16 Demont St, Smithtown | 12/29/2015 | ||
| 22 Blanchard St, Smithtown | 3,406 | 06/06/2000 | $264,000 |
| 19 Ellbert St, Smithtown | 2,802 | 05/09/2024 | $899,999 |