| Primary address | 21 Elm Street, Massapequa |
| Zip code | 11758 |
| County | Nassau |
| Town/City | Oyster Bay |
| Village (swiss code) | None (unincorporated town) |
| Parcel ID | 57-184-300 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Building sqft | 2,046 |
| Building class | Two Family Year - Round Residence (220.01) |
| Land | Primary site |
| Topography | Level |
| Acreage | 0.15 |
| Buildings on lot | 1 |
| Year built | 1972 |
| Stories | 1 |
| Style | Raised Ranch/Hi Ranch |
| Rooms | 10 |
| Bathrooms | 3 |
| Attic | None |
| Basement | Full |
| Exterior wall | Alum/Vinyl |
| Heating type | Central |
| Heating system | Hot water |
| Fireplace | 1 |
| Zoning district | Register (See more on map) |
| School district | Massapequa UFSD |
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).
Create a free account to access valuable data points such as:
21 Elm Street, Massapequa, NY 11758 was built in 1972 and has a total of 2,046 square feet.
What is the assessed value of 21 Elm Street, Massapequa, NY 11758 and the property tax paid?Assessed at $483, the tax amount paid for 21 Elm Street, Massapequa, NY 11758 is $14,218.
When was 21 Elm Street, Massapequa, NY 11758 last sold?21 Elm Street, Massapequa, NY 11758 was last sold in 10/12/2021.
How many residential units does this building have?This building has 2 residential unit(s).
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 21 Elm Street, Massapequa, including title documents, transfer conditions, mortgages and liens.
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.
R: Recorded date
D: Document date
Access detailed property tax data for 21 Elm Street, Massapequa, NY 11758. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2026 |
| Base tax | $14,218 |
| Current property tax | $11,378 |
| Tax class | Register |
| Market value | $483,000 |
| Assessed value | $483 |
Here's the assessment & property tax history for 21 Elm Street, Massapequa, 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 | $483,000 | $483 | 2943.707 | $14,218 | -1.96% |
| 2025 | $509,000 | $509 | 2849.221 | $14,503 | -5.98% |
| 2024 | $512,000 | $503 | 3066.581 | $15,425 | -6.50% |
| 2023 | $512,000 | $512 | 3222.029 | $16,497 | -8.72% |
| 2022 | $512,000 | $512 | 3529.731 | $18,072 | -12.21% |
The complete history of permits filed for 21 Elm Street, Massapequa, 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.
Create a free account to unlock extended information for 21 Elm Street, Massapequa, 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) | 0.2, AE, X (See more on map) |
Access the detailed traffic volume map for 21 Elm Street, Massapequa 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) |
|---|---|---|---|---|---|
| Fairfield Elementary School | 6 | Public | K-5 | 530 | 0.31 |
| Montessori Childrens School | NR | Private | PK-K | 77 | 0.45 |
| Montessori Childrens School | NR | Private | PK-K | 77 | 0.45 |
| St William The Abbot School | NR | Private | PK, K-8 | 536 | 0.55 |
| St William The Abbot School | NR | Private | PK, K-8 | 536 | 0.55 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| St William The Abbot School | NR | Private | PK, K-8 | 536 | 0.55 |
| St Rose Of Lima Elementary School | NR | Private | PK-8 | 329 | 0.99 |
| Seaford Middle School | 9 | Public | 6-8 | 517 | 1.24 |
| Montessori Children's School | NR | Private | 0 | 1.24 | |
| Mhs Ames Campus | NR | Public | 9 | 442 | 1.38 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Montessori Children's School | NR | Private | 0 | 1.24 | |
| Massapequa High School | 10 | Public | 10-12 | 1,453 | 1.36 |
| Mhs Ames Campus | NR | Public | 9 | 442 | 1.38 |
| Seaford Senior High School | 9 | Public | 9-12 | 658 | 1.40 |
| Mosaic School | NR | Private | 7 | 2.13 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 21 Elm Street, Massapequa.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 28 Elm St, Massapequa | 1,843 | 02/08/2021 | $551,200 |
| 7 Elm St, Massapequa | 1,843 | 10/19/2009 | $525,000 |
| 17 Elm St, Massapequa | 1,188 | 08/28/2024 | $640,000 |
| 323 Seaford Ave, Massapequa | 1,936 | 02/13/2025 | $765,000 |
| 15 Elm St, Massapequa | 1,188 | 03/01/2010 | |
| Parcel 57-184-308 (No address), Massapequa | 12/16/2021 | ||
| 18 Locust St, Massapequa | 2,241 | 03/16/2000 | $370,000 |
| 36 Elm St, Massapequa | 814 | 01/30/2002 | $46,700 |
| 24 Locust St, Massapequa | 1,712 | 03/30/2022 | $750,000 |
| 26 Locust St, Massapequa | 2,042 | 09/19/2025 | $49,000 |
| 9 Elm St, Massapequa | 1,911 | 11/30/2023 | $678,000 |
| 317 Seaford Ave, Massapequa | 1,911 | 05/24/2004 | |
| 16 Locust St, Massapequa | 2,950 | 08/23/2018 | $760,000 |
| 14 Locust St, Massapequa | 2,379 | 06/02/2005 | $556,000 |
| 23 Elm St, Massapequa | 1,957 | 05/02/2016 | $315,000 |
| 19 Elm St, Massapequa | 2,510 | 04/04/2013 | $410,000 |
| 20 Locust St, Massapequa | 2,577 | 09/24/2021 | |
| 28 Locust St, Massapequa | 2,109 | 07/29/2019 | $600,000 |
| 24 Elm St, Massapequa | 1,530 | 10/07/1995 | $37,000 |
| 30 Elm St, Massapequa | 950 | 03/08/2022 | $520,000 |