Nassau County  »  12 William St

12 William Street, Massapequa, NY 11758 - Property report

Also known as: 12 William St

Property image for 12 William Street, Massapequa, NY 11758
static Mapbox map

Property type

One Family Year - Round Residence (210.01)

Year built

1953

Acreage

0.154

Sale price

$550,000

General information

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Access up-to-date information from property owner names to sales history, deeds, tax info, mortgages, development data, planimetric maps and more.

Address
Primary address
12 William Street
ZIP code
11758
County
Nassau
Town/City
Oyster Bay
Village (SWIS code)
None (unincorporated town)
Parcel ID
65-118-36

Owner

Find out who owns 12 William Street, Massapequa, NY 11758. Uncover corporate and individual owners with a free account.

Sales
Sale date
07/15/2026
Sale price
$550,000
Arm's length
Tax
Tax year
2026
Current property tax
$12,496
Tax class
Zoning & Use
Zoning
R1-7
Building
Property type
One Family Year - Round Residence (210.01)
Building sq. ft.
1,526
Buildings on lot
1
Stories
1
Year built
1953
Rooms
6
Bathrooms
2
Exterior wall
Frame
Building style
Ranch
Basement
Full
Attic
None
Heating type
Central
Heating system
Hot water
Lot
Acreage
0.154
Topography
Level
Land
Primary site

Area overview

Walk score
66 /100.  Somewhat Walkable
Transit score
18 /100.  Minimal Transit
Bike score
45 /100.  Somewhat Bikeable
School district
3023

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

Ownership

Ownership information for 12 William Street, Massapequa, NY

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

Sales history for 12 William Street, Massapequa, NY 11758

Sale date Sale price Buyer name Seller name
07/15/2026 $550,000 XXXXXXXX XX XXX XXXXXX XXX XXXXXX; XXXXXX XXXXXX XXXX XXXX; XXX XXXXXX XX XXXXX X XXXXXXXXXX

*Most recent sale on record for this property.

More about Nassau County property records.

Title documents

Date Type Amount Party 1 Party 2
07/28/2026 - R
07/15/2026 - D		 Deed XXXXXX XXX XXXXXX XXXXXXXX XX XXX
10/14/2008 - R
10/08/2008 - D		 Deed XXXXX XXXXXXXXXX
06/23/2005 - R
06/10/2005 - D		 Deed XXXXXXXXXX XXXXX
02/10/1999 - R
02/04/1999 - D		 Deed

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 12 William Street, Massapequa, NY

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

Current property tax
Tax year
2026
Current property tax
$12,496
Base tax
$13,117
Current school tax
Recent tax assessments
Market value
$501,000
Assessed value
$501
Transitional assessed value
Exemptions

More about Nassau 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
2026 $501,000 $501 2618.197 $13,117 +5.49%
2025 $493,000 $493 2522.159 $12,434 -19.07%
2024 $501,096 $501 3066.581 $15,364 +10.12%
2023 $492,000 $492 2835.707 $13,952 -9.53%
2022 $501,000 $501 3078.118 $15,421 -8.80%
2021 $483,000 $483 3501.079 $16,910 +6.18%
2020 $420,000 $1,050 1516.779 $15,926 +7.84%
2019 $420,000 $1,050 1406.51 $14,768 +7.06%
2018 $420,000 $1,050 1313.702 $13,794 +7.03%
2017 $420,000 $1,050 1227.408 $12,888 +2.98%
Permits

Permit information for 12 William Street, Massapequa, NY

No recently recorded permits for this property.

Neighborhood

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 12 William Street, Massapequa, NY 11758 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)
St Rose Of Lima Elementary School NR Private PK-8 329 0.08
St Rose Of Lima Elementary School NR Private PK-8 329 0.08
Grace Episcopal Day School Early Childhood Center NR Private PK, K-1 289 0.09
Grace Episcopal Day School Early Childhood Center NR Private PK, K-1 289 0.09
Birch Lane Elementary School 5 Public K-5 643 0.46
Montessori Childrens School NR Private PK-K 77 0.52
Fairfield Elementary School 6 Public K-5 530 0.70
Unqua Elementary School 9 Public K-5 497 1.36
Lockhart Elementary School 5 Public K-5 366 1.43
Mckenna Elementary School 6 Public K-5 438 1.89
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
St Rose Of Lima Elementary School NR Private PK-8 329 0.08
Montessori Children's School NR Private 0 1.14
Mhs Ames Campus NR Public 9 442 1.42
St William The Abbot School NR Private PK, K-8 536 1.50
Berner Middle School 8 Public 6-8 1,596 1.53
Seaford Middle School 9 Public 6-8 517 1.99
Maria Regina Elementary School NR Private PK-8 345 2.22
St Martin Of Tours School NR Private PK-8 238 2.57
Amityville Memorial High School 3 Public 8-12 968 2.63
Edmund W Miles Middle School 4 Public 6-8 599 2.88
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Massapequa High School 10 Public 10-12 1,453 0.51
Montessori Children's School NR Private 0 1.14
Mhs Ames Campus NR Public 9 442 1.42
Seaford Senior High School 9 Public 9-12 658 2.22
Plainedge Senior High School 8 Public 9-12 845 2.51
Amityville Memorial High School 3 Public 8-12 968 2.63
Mosaic School NR Private 7 3.02
Farmingdale Senior High School 7 Public 9-12 1,703 3.11
Wantagh Senior High School 9 Public 9-12 836 3.22
John F Kennedy High School 9 Public 9-12 1,043 3.48

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

Neighbors for 12 William Street, Massapequa, NY

6 John St, Massapequa 2 John St, Massapequa 6 Nassau St, Massapequa 1 John St, Massapequa 3 John St, Massapequa 10 Bayview Ave, Massapequa 16 Bayview Ave, Massapequa 2 William St, Massapequa 121 Bayview Ave, Massapequa 4 John St, Massapequa 8 William St, Massapequa 16 Nassau St, Massapequa 3 Nassau St, Massapequa 4 Nassau St, Massapequa 12 Bayview Ave, Massapequa 132 Fox Blvd, Massapequa 26 Bayview Ave, Massapequa 10 Nassau St, Massapequa 7 Nassau St, Massapequa 130 Fox Blvd, Massapequa

Nearby ZIP codes for 12 William Street, Massapequa, NY

11520, Nassau County, NY 11554, Nassau County, NY 11566, Nassau County, NY 11575, Nassau County, NY 11701, Suffolk County, NY 11702, Suffolk County, NY 11704, Suffolk County, NY 11714, Nassau County, NY 11726, Suffolk County, NY 11735, Nassau County, NY 11735, Suffolk County, NY 11756, Nassau County, NY 11757, Suffolk County, NY 11762, Nassau County, NY 11783, Nassau County, NY 11793, Nassau County, NY 11798, Suffolk County, NY 11801, Nassau County, NY 11804, Nassau County, NY

Frequently asked questions

What is the year built for 12 William Street, Massapequa, NY 11758?

The development at 12 William Street, Massapequa, NY 11758 was built in 1953.

What is the total square footage of 12 William Street, Massapequa, NY 11758?

12 William Street, Massapequa, NY 11758 has a total of 1,526 square feet.

When was 12 William Street, Massapequa, NY 11758 last sold and what was the sale price?

12 William Street, Massapequa, NY 11758 was last sold on 07/15/2026 for $550,000.

What is the assessed value of 12 William Street, Massapequa, NY 11758?

12 William Street, Massapequa, NY 11758 is currently assessed at $501.

What are the property taxes for 12 William Street, Massapequa, NY 11758?

The property taxes for 12 William Street, Massapequa, NY 11758 total $13,117.

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