Nassau County  »  11804  »  Round Swamp Rd  »  635 Round Swamp Rd

635 Round Swamp Road, Old Bethpage, NY 11804 - Property report

Also known as: 635 Round Swamp Rd

Property image for 635 Round Swamp Road, Old Bethpage, NY 11804
static Mapbox map

Property type

Town (652.74)

Year built

1980

Acreage

18.6

General information

Unlock this property report with a free account

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
635 Round Swamp Road
ZIP code
11804
County
Nassau
Town/City
Oyster Bay
Village (SWIS code)
None (unincorporated town)
Parcel ID
47-153-3

Owner

Find out who owns 635 Round Swamp Road, Old Bethpage, NY 11804. Uncover corporate and individual owners with a free account.

Tax
Tax year
2026
Tax class
Zoning & Use
Zoning
LI
Capitalization rate
Area type
Commercial/Industrial park
Building
Property type
Town (652.74)
Building sq. ft.
40,770
Buildings on lot
2
Stories
1
Year built
1980
Lot
Acreage
18.6

Area overview

Walk score
9 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
21 /100.  Somewhat Bikeable
School district
3020
Street
Paved
Traffic
Medium

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

Ownership

Ownership information for 635 Round Swamp Road, Old Bethpage, NY

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

Sales history for 635 Round Swamp Road, Old Bethpage, NY 11804

No recently recorded sales for this property.

More about Nassau County property records.

Title documents

No recently recorded documents for this property.

Tax

Property taxes for 635 Round Swamp Road, Old Bethpage, NY

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

Current property tax
Tax year
2026
Recent tax assessments
Market value
$19,683,600
Assessed value
$196,836
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 $19,683,600 $196,836 n/a
2025 $19,683,600 $196,836 n/a
2024 $19,683,634 $196,836 783.483 $1,433,194 n/a
2023 $19,683,600 $196,836 n/a
2022 $19,683,600 $196,836 n/a
2021 $18,395,900 $183,959 n/a
2020 $14,016,600 $140,166 n/a
2019 $14,016,600 $140,166 n/a
2018 $14,016,600 $140,166 n/a
2017 $14,016,600 $140,166 n/a
Permits

Permit information for 635 Round Swamp Road, Old Bethpage, NY

No recently recorded permits for this property.

Neighborhood

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
X

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 635 Round Swamp Road, Old Bethpage, NY 11804 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)
Northside Elementary School 7 Public K-5 381 0.94
Old Bethpage School 9 Public K-4 435 1.15
Charles Campagne School 7 Public K-5 402 1.28
St John Baptist De Lasalle Regional School NR Private PK, K-8 214 1.52
St John Baptist De Lasalle Regional School NR Private PK, K-8 214 1.52
Miss Sue's Nursery School and Kindergarten NR Private 0 1.76
H B Mattlin Middle School 8 Public 5-8 772 1.96
Kramer Lane Elementary School 8 Public K-5 387 1.97
Central Boulevard Elementary School 5 Public K-5 533 2.22
New Jerusalem Christian Academy NR Private 1-12 20 2.34
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
John F Kennedy Middle School 8 Public 6-8 717 1.45
St John Baptist De Lasalle Regional School NR Private PK, K-8 214 1.52
Howitt School 6 Public 6-8 1,199 1.55
Miss Sue's Nursery School and Kindergarten NR Private 0 1.76
H B Mattlin Middle School 8 Public 5-8 772 1.96
Plainedge Middle School 6 Public 6-8 663 2.33
New Jerusalem Christian Academy NR Private 1-12 20 2.34
Good Shepherd Lutheran School NR Private 0 2.35
Plainview Old Bethpage Middle School 8 Public 5-8 889 2.51
West Hollow Middle School 6 Public 6-8 969 2.95
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Bethpage Senior High School 9 Public 9-12 932 1.58
Miss Sue's Nursery School and Kindergarten NR Private 0 1.76
Plainview Old Bethpage JFK High School 10 Public 9-12 1,649 2.09
New Jerusalem Christian Academy NR Private 1-12 20 2.34
Good Shepherd Lutheran School NR Private 0 2.35
St Anthonys High School NR Private 9-12 2,410 2.42
Island Trees High School 9 Public 9-12 727 3.05
Farmingdale Senior High School 7 Public 9-12 1,703 3.11
The Elija School NR Private 31 3.67
Plainedge Senior High School 8 Public 9-12 845 3.81

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

Neighbors for 635 Round Swamp Road, Old Bethpage, NY

101 Bethpage Rd, Oyster Bay 3680 Clarmont Rd, Old Bethpage 4 Claremont Rd, Old Bethpage 6 Claremont Rd, Old Bethpage 90 Battle Row, Old Bethpage 2 Jeanna CT, Old Bethpage 4 Jeanna CT, Old Bethpage 14 Battle Row, Old Bethpage 8 Jeanna CT, Old Bethpage 2 Claremont St, Old Bethpage 42 Fairway Dr, Old Bethpage 960 Round Swamp Rd, Old Bethpage 12 Motor Ln, Old Bethpage 6 Jeanna CT, Old Bethpage 300 Winding Rd, Old Bethpage 14 Motor Ln, Old Bethpage 101 Round Swamp Rd, Old Bethpage 12 Battle Row, Old Bethpage 958 Round Swamp Rd, Old Bethpage 956 Round Swamp Rd, Old Bethpage

Nearby ZIP codes for 635 Round Swamp Road, Old Bethpage, NY

11554, Nassau County, NY 11701, Suffolk County, NY 11704, Suffolk County, NY 11714, Nassau County, NY 11724, Suffolk County, NY 11726, Suffolk County, NY 11735, Nassau County, NY 11735, Suffolk County, NY 11746, Suffolk County, NY 11747, Suffolk County, NY 11753, Nassau County, NY 11756, Nassau County, NY 11757, Suffolk County, NY 11762, Nassau County, NY 11783, Nassau County, NY 11791, Nassau County, NY 11797, Nassau County, NY 11798, Suffolk County, NY 11801, Nassau County, NY

Frequently asked questions

What is the year built for 635 Round Swamp Road, Old Bethpage, NY 11804?

The development at 635 Round Swamp Road, Old Bethpage, NY 11804 was built in 1980.

What is the total square footage of 635 Round Swamp Road, Old Bethpage, NY 11804?

635 Round Swamp Road, Old Bethpage, NY 11804 has a total of 40,770 square feet.

What is the assessed value of 635 Round Swamp Road, Old Bethpage, NY 11804?

635 Round Swamp Road, Old Bethpage, NY 11804 is currently assessed at $196,836.

Disclaimer

Copyright 2003-2026 by PropertyShark.com

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.

Sign up for a free account