Nassau County  »  11735  »  William St  »  91 William St

91 William Street, Farmingdale, NY Property Information

91 William Street, Farmingdale, NY 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

91 William Street, Farmingdale, NY
static Mapbox map

Address

Primary address 91 William Street, Farmingdale
Zip code 11735
County Nassau
Town/City Oyster Bay
Village (swiss code) Farmingdale
Parcel ID 49-291-69

Sales & Tax Overview for 91 William Street, Farmingdale

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

Sale date 07/24/1998
Sale price $148,000
Arm's length
Tax class
Current property tax $9,186

Lot & Building Information for 91 William Street, Farmingdale

Building sqft 1,489
Building class One Family Year - Round Residence (210.01)
Land Primary site
Topography Level
Acreage 0.185
Buildings on lot 1
Year built 1924
Stories 2
Style Old Style
Rooms 7
Bathrooms 1
Attic Unfinished
Basement Full
Exterior wall Alum/Vinyl
Heating type Central
Heating system Hot water
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 (See more on map)
School district Farmingdale UFSD

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

Other Property Data for 91 William Street, Farmingdale

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

  • • Improvements for 91 William Street, Farmingdale , 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 91 William Street, Farmingdale

What is the year built & the total sq. ft. for 91 William Street, Farmingdale, NY?

91 William Street, Farmingdale, NY was built in 1924 and has a total of 1,489 square feet.

What is the assessed value of 91 William Street, Farmingdale, NY and the property tax paid?

Assessed at $386, the tax amount paid for 91 William Street, Farmingdale, NY is $10,448.

When was 91 William Street, Farmingdale, NY last sold?

91 William Street, Farmingdale, NY was last sold in 07/07/2005.

Ownership Information

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

Real Estate Reports:
Laura Pop-Badiu, Jul 29, 2026 How to Contact Property Owners: Cold Calling Scripts, Email Templates & Outreach Tips 
When it comes to efficiently contacting property owners, the challenge is twofold: First, you need to identify the right owner. Then, you need to reach that owner through the appropriate channel with the right message. Enhanced by effective follow-up tips and tactics, this guide is particularly useful for investors, agents and other real estate professionals who need an effective outreach process.
Lucian Alixandrescu, Jul 28, 2026 Brooklyn Emerges as NYC’s Coworking Growth Engine, Manhattan Rents Cross $100 in the Plaza District 
New York City’s office market continued to lead the U.S. in Q2, but internal shifts were most visible in the flex office market. Brooklyn’s coworking inventory grew 6.2% Q-o-Q even as Manhattan’s supply retreated. At the same time, Brooklyn’s asking rents for traditional office leases climbed more than twice as fast as the national average.
Eliza Theiss, Jul 22, 2026 Prices Rise in 32 of NYC’s Leading Neighborhoods as City and Manhattan Hit Record Highs
Q2 2026 saw NYC and Manhattan reach historic highs, with Brooklyn and Queens marking close to new records as well. Meanwhile, Hudson Yards remained at the top, Central Midtown posted its highest price ever and Carroll Gardens marked its third consecutive quarter over $2 million
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 91 William Street, Farmingdale

Create a free account to view the complete sales history for 91 William Street, Farmingdale, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
07/24/1998 $148,000

Title Documents for 91 William Street, Farmingdale

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
02/24/2023 - R
02/17/2023 - D
Mortgage
(Fixed rate)
06/28/2021 - R Other
(Mortgage satisfaction)
07/21/2005 - R
07/07/2005 - D
Deed
08/27/1998 - R
07/24/1998 - D
Deed
         
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 91 William Street, Farmingdale

Access detailed property tax data for 91 William Street, Farmingdale, NY. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year 2026
Base tax $10,449
Current property tax $9,186
Tax class
Market value $386,000
Assessed value $386
School current tax bill
Property tax exemptions
Transitional assessed value

Assessment History for 91 William Street, Farmingdale

Here's the assessment & property tax history for 91 William Street, Farmingdale, 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
2026 $386,000 $386 2706.981 $10,449 +3.29%
2025 $389,000 $389 2600.644 $10,117 -12.50%
2024 $425,000 $404 2861.827 $11,562 -9.97%
2023 $427,000 $427 3007.503 $12,842 -9.23%
2022 $425,000 $425 3328.887 $14,148 -13.10%

Permits for 91 William Street, Farmingdale

The complete history of permits filed for 91 William Street, Farmingdale, 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.

Risk

Create a free account to unlock extended information for 91 William Street, Farmingdale, 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 91 William Street, Farmingdale 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

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
St John Baptist De Lasalle Regional School NR Private PK, K-8 214 0.25
St John Baptist De Lasalle Regional School NR Private PK, K-8 214 0.25
New Jerusalem Christian Academy NR Private 1-12 20 0.58
Northside Elementary School 7 Public K-5 381 0.83
Woodward Parkway Elementary School 5 Public K-5 736 0.88

Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Howitt School 6 Public 6-8 1,199 0.23
St John Baptist De Lasalle Regional School NR Private PK, K-8 214 0.25
New Jerusalem Christian Academy NR Private 1-12 20 0.58
Bethesda Sda Elementary School NR Private PK-8 39 1.96
Plainedge Middle School 6 Public 6-8 663 2.06

Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
New Jerusalem Christian Academy NR Private 1-12 20 0.58
Farmingdale Senior High School 7 Public 9-12 1,703 1.42
Plainedge Senior High School 8 Public 9-12 845 2.57
Island Trees High School 9 Public 9-12 727 2.76
Bethpage Senior High School 9 Public 9-12 932 2.80

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 91 William Street, Farmingdale

Here are the neighbors for 91 William Street, Farmingdale.

Address Square feet Purchase date Purchase price
857 Fulton St, Farmingdale 1,362
25 William St, Farmingdale 1,217 02/12/2024
863 Fulton St, Farmingdale 2,548 01/28/2020 $605,000
107 William St, Farmingdale 2,168 03/21/2022 $685,000
137 William St, Farmingdale 1,500 09/12/2019 $460,000
29 William St, Farmingdale 904 04/23/2002 $170,000
99 William St, Farmingdale 1,380 10/03/2007
35 William St, Farmingdale 1,314 07/12/2018 $419,990
41 William St, Farmingdale 1,652 11/30/2021 $550,000
47 William St, Farmingdale 1,860 07/02/2003 $376,000
145 William St, Farmingdale 1,629 06/15/2006
280 Van Cott Ave, Farmingdale 1,629 12/21/2015 $525,000
53 William St, Farmingdale 1,043 06/23/2025 $485,000
83 William St, Farmingdale 2,242 11/11/2009
232 Van Cott Ave, Farmingdale 1,310 06/28/1996 $167,500
141 William St, Farmingdale 1,622 11/04/2024
75 William St, Farmingdale 1,506 12/11/2019 $340,000
847 Fulton St, Farmingdale 2,542 09/16/2005 $525,000
228 Van Cott Ave, Farmingdale 1,443 12/09/2022 $550,000
19 William St, Farmingdale 2,536 04/21/2003 $285,000
Not sure if we cover all the data-points you need? View sample full report View sample full report