Suffolk County » 11751 » Nassau Ave » 40 Nassau Ave

40 Nassau Avenue, Islip, NY 11751 - Property report

Also known as: 40 Nassau Ave

Property image for 40 Nassau Avenue, Islip, NY 11751

Property type

Office Building (464)

Acreage

0.03

General information

Address

Primary address

40 Nassau Avenue

ZIP code

11751

County

Suffolk

Village (SWIS code)

472889

Parcel ID

370-2-70.4

Building

Property type

Office Building (464)

Buildings on lot

Tax

Tax year

2025-2026

Zoning & Use

Zoning

Lot

Acreage

0.03

Area overview

Walk score

78 /100. Very Walkable

Transit score

0 /100. Minimal Transit

Bike score

54 /100. Bikeable

School district

472802

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

Ownership

Ownership information for 40 Nassau Avenue, Islip, NY

Property owner name

Registered owner

Source

Deed

Owner contact information

Phone number

Owner address

Documents

Sales history for 40 Nassau Avenue, Islip, NY 11751

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 40 Nassau Avenue, Islip, NY

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

Current property tax

Tax year

2025-2026

Base tax

$23,810

Recent tax assessments

Market value

$721,127

Assessed value

$51,200

Exemptions

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	$721,127	$51,200	46.503	$23,810	+13.98%
2024-2025	$721,127	$51,200	40.799	$20,889	-1.35%
2023-2024	$703,297	$51,200	41.357	$21,175	-2.03%
2022-2023	$618,358	$51,200	42.213	$21,613	+4.32%
2021-2022	$551,725	$51,200	40.466	$20,719	-0.71%
2020-2021	$527,835	$51,200	40.757	$20,868	+6.26%
2019-2020	$451,101	$51,200	38.357	$19,639	+1.51%
2018-2019	$451,101	$51,200	37.788	$19,347	+2.28%
2017-2018	$422,442	$51,200	36.947	$18,917	-0.14%
2016-2017	$403,150	$51,200	36.998	$18,943	+6.00%

Permits

Permit information for 40 Nassau Avenue, Islip, NY

No recently recorded permits for this property.

Listings

Neighborhood

Demographics by ZIP code

Total population

13,726

Median age

45.6

Average household income

$136,601

Family households

67.4%

People per household (average)

2.71

Occupied housing units

5,040

Owner-occupied units

83.4%

Median year structure built

1965

Median value mortgaged units

$586,500

Median value unmortgaged units

$514,700

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones

Transportation

Daily traffic map

View daily traffic map

Access the detailed traffic volume map for 40 Nassau Avenue, Islip, NY 11751 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Frequently asked questions

What is the market value of 40 Nassau Avenue, Islip, NY 11751?

The current market value of 40 Nassau Avenue, Islip, NY 11751 is $721,127.

Disclaimer

All data comes from government sources. No attempt has been made to validate it. No attempt has been made to validate the accuracy of the programming of this website.

Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.