| Primary address | 21 Dover Place, Mastic |
| Zip code | 11950 |
| County | Suffolk |
| Municipality | Brookhaven |
| Parcel ID | 4618814 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 09/22/2016 |
| Sale price | $153,700 |
| Arm's length | Register |
| Property tax | $7,028 |
| Building sqft | 1,008 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.12 |
| Year built | 1975 |
| Rooms | 5 |
| Bedrooms | 3 |
| Bathrooms | 1 |
| Zoning district | Register |
| School district | William Floyd |
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 Dover Place, Mastic, NY 11950 was built in 1975 and has a total of 1,008 square feet.
What is the assessed value of 21 Dover Place, Mastic, NY 11950 and the property tax paid?Assessed at $1,900, the tax amount paid for 21 Dover Place, Mastic, NY 11950 is $7,028.
When was 21 Dover Place, Mastic, NY 11950 last sold and what was the last sale price?21 Dover Place, Mastic, NY 11950 was last sold in 09/22/2016 for $153,700.
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 Dover Place, Mastic, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
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 Dover Place, Mastic, NY 11950. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $7,028 |
| Market value | $358,491 |
| Assessed value | $1,900 |
Here's the assessment & property tax history for 21 Dover Place, Mastic, 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 |
|---|---|---|---|---|---|
| 2025-2026 | $358,491 | $1,900 | 369.908 | $7,028 | +1.72% |
| 2024-2025 | $358,491 | $1,900 | 363.67 | $6,910 | +2.08% |
| 2023-2024 | $351,852 | $1,900 | 356.252 | $6,769 | -12.23% |
| 2022-2023 | $306,452 | $1,900 | 405.87 | $7,712 | -3.28% |
| 2021-2022 | $256,757 | $1,900 | 419.634 | $7,973 | +0.99% |
The complete history of permits filed for 21 Dover Place, Mastic, 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.
Access a detailed real estate market overview of Brookhaven so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Brookhaven and compare it to other neighborhoods in Suffolk County.
Create a free account to unlock extended information for 21 Dover Place, Mastic, 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) |
Access the detailed traffic volume map for 21 Dover Place, Mastic 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) |
|---|---|---|---|---|---|
| Moriches Elementary School | 5 | Public | K-5 | 822 | 1.23 |
| William Floyd Learning Center | NR | Public | K-5 | 68 | 1.88 |
| William Floyd Elementary School | 4 | Public | K-5 | 742 | 1.88 |
| John S Hobart Elementary School | 3 | Public | K-5 | 798 | 1.96 |
| Dayton Avenue School | 5 | Public | 3-6 | 412 | 2.14 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| William Floyd Middle School | 3 | Public | 6-8 | 1,053 | 1.69 |
| Eastport South Manor Junior Senior High School | 5 | Public | 7-12 | 1,530 | 1.85 |
| Center Moriches Middle School | 3 | Public | 6-8 | 325 | 2.32 |
| William Paca Middle School | 4 | Public | 6-8 | 1,009 | 2.46 |
| Our Lady Queen Of Apostles Reg Catholic School | NR | Private | PK-8 | 153 | 3.40 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Eastport South Manor Junior Senior High School | 5 | Public | 7-12 | 1,530 | 1.85 |
| William Floyd High School | 5 | Public | 9-12 | 3,013 | 2.26 |
| Center Moriches High School | 8 | Public | 9-12 | 556 | 2.32 |
| Leonard E Burket Christian School | NR | Private | PK-12 | 77 | 3.45 |
| Bellport Senior High School | 5 | Public | 9-12 | 1,392 | 4.70 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 21 Dover Place, Mastic.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 17 Dover Pl, Mastic | 1,075 | 10/29/2018 | |
| 20 Dover Pl, Mastic | 1,315 | ||
| 14 Dover Pl, Mastic | 999 | 11/12/2010 | $142,000 |
| 12 Dover Pl, Mastic | 585 | 08/29/2000 | $77,117 |
| 19 Dover Pl, Mastic | 1,125 | 01/28/2013 | $128,260 |
| 195 N Sunrise Service Rd, Mastic | 08/24/2021 | ||
| 9 Stewart Pl, Mastic | 1,333 | 10/15/2020 | $259,000 |
| 20 Ocean Ave, Mastic | 882 | 07/29/2022 | $330,000 |
| 18 Dover Pl, Mastic | 700 | 07/21/2020 | |
| 11 Malta Pl, Mastic | 1,992 | 07/16/2018 | $220,000 |
| 7 Malta Pl, Mastic | 1,992 | 08/19/2016 | $305,000 |
| 28 Ocean Ave, Mastic | 1,056 | 01/28/2025 | |
| 26 Ocean Ave, Mastic | 1,008 | 08/11/2000 | |
| 23 Dover Pl, Mastic | 1,008 | 07/30/2004 | $225,000 |
| 15 Devoe Pl, Mastic | 895 | 10/09/2003 | |
| 64 Riviera Dr, Mastic | 1,182 | 12/30/2022 | |
| 30 Ocean Ave, Mastic | 04/22/1999 | $112,700 | |
| 15 Dover Pl, Mastic | 1,092 | 04/02/2019 | $145,013 |
| 15 Malta Pl, Mastic | 1,715 | 10/05/2018 | $212,000 |
| 17 Devoe Pl, Mastic | 1,536 |