Suffolk County  »  11751  »  Main St  »  521 Main St

521 Main Street, Islip, NY 11751 Property Information

521 Main Street, Islip, NY 11751 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Photo & Map Show Hide

521 Main Street, Islip, NY 11751
static Mapbox map

Address

Primary address 521 Main Street, Islip
Zip code 11751
County Suffolk
Municipality Islip
Parcel ID 370-2-41.1

Sales & Tax Overview for 521 Main Street, Islip

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 08/07/2000
Sale price $375,000
Arm's length
Property tax $33,715

Lot & Building Information for 521 Main Street, Islip

Building class Downtown Row Type (Detached) (482)
Acreage 0.12
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now

Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
School district Islip

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 521 Main Street, Islip

Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:

  • • Improvements for 521 Main Street, Islip , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
Unlock all property data with a free account.
Sign up

About 521 Main Street, Islip

What is the market value of 521 Main Street, Islip, NY 11751?

The current market value is $1,021,127.

Ownership Information

View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.

Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Past Sales & Property History for 521 Main Street, Islip

Create a free account to view the complete sales history for 521 Main Street, Islip, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
08/07/2000 $375,000

Title Documents for 521 Main Street, Islip

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Doc image
08/07/2000 - D
08/24/2000 - R
Deed
           
           
           
           
Unlock daily updated title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 521 Main Street, Islip

Access detailed property tax data for 521 Main Street, Islip, NY 11751. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year 2025-2026
Property tax $33,715
Market value $1,021,127
Assessed value $72,500

Assessment History for 521 Main Street, Islip

Here's the assessment & property tax history for 521 Main Street, Islip, 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
2024-2025 $1,021,127 $72,500 40.799 $29,579 -1.35%
2023-2024 $995,879 $72,500 41.357 $29,984 -2.03%
2022-2023 $875,604 $72,500 42.213 $30,604 -5.46%
2021-2022 $862,069 $80,000 40.466 $32,373 -0.71%
2020-2021 $824,742 $80,000 40.757 $32,606 +6.26%

Permits for 521 Main Street, Islip

The complete history of permits filed for 521 Main Street, Islip, 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.

Data not available for this property.

Demographics by Zip Code

Total population 13,726
Median age 45.6
Average household income $136,601
Family households 67.4%
Occupied housing units 5,040
Owner occupied units 83.4%
Average number of people per household 2.71
Median year structure built 1965
Median value for units with a mortgage $586,500
Median value for units without a mortgage $514,700

Risk

Create a free account to unlock extended information for 521 Main Street, Islip, 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)

Transportation

Access the detailed traffic volume map for 521 Main Street, Islip 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

Neighbors for 521 Main Street, Islip

Here are the neighbors for 521 Main Street, Islip.

Address Square feet Purchase date Purchase price
113 Bucknell Rd, West Sayville 03/06/2009
142 Awixa Ave, Bay Shore 01/22/2014 $400,000
3 Aljan Dr, Brentwood 08/15/2000 $122,850
68 Shore Dr, Oakdale 1,404 12/08/2017 $315,000
1716 N Gardiner Dr, Bay Shore 06/01/2000
28 Yarnell St, Brentwood 05/12/2023 $339,000
10 Jeffery Rd, Oakdale 08/15/2000 $225,000
1350 Union Blvd, Bay Shore 10/03/2006 $325,000
285 Vanderbilt Ave, Brentwood 10/12/2006 $482,300
260 Storm Dr, Holtsville 08/10/2000 $99,990
291 4th Ave, Bay Shore 07/22/2022 $490,000
255 N 7th St, Ronkonkoma 04/22/2005 $100,000
158 E Nassau St, Islip Terrace 02/08/2017
725 Suffolk Ave, Brentwood 08/01/2000
380 Evergreen Ave, Central Islip 11/15/2023 $555,000
17 W Spruce St, Islip 08/27/2003 $369,000
108 Dolce St, Brentwood 1,304 05/07/2021 $430,000
1 Meadow Creek CT, East Islip 01/19/2010 $975,000
60 Knickerbocker Ave, Bohemia 8,042 07/09/2012 $1,200,000
61 Maplewing Blvd, Central Islip 08/04/2011 $230,000
Not sure if we cover all the data-points you need? View sample full report View sample full report