Nassau County  »  11791  »  Underhill Blvd  »  475 Underhill Blvd

Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791 - Property report

Also known as: 475 Underhill Blvd

Property image for Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791
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Property type

Self Storage (442.14)

Year built

1963

Acreage

3.48

Sale price

$15,675,000

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
Syosset Self - 475 Underhill Boulevard
ZIP code
11791
County
Nassau
Town/City
Oyster Bay
Village (SWIS code)
None (unincorporated town)
Parcel ID
15-169-16

Owner

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Building
Property type
Self Storage (442.14)
Building sq. ft.
76,280
Buildings on lot
1
Stories
1
Year built
1963
AC
Central
Sales
Sale date
03/20/2026
Sale price
$15,675,000
Arm's length
Tax
Tax year
2026
Current property tax
$232,069
Tax class
Zoning & Use
Zoning
Capitalization rate
Area type
Commercial/Industrial park
Lot
Acreage
3.48
Topography
Level
Land
Primary site

Area overview

Walk score
49 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
47 /100.  Somewhat Bikeable
School district
3014
Street
Paved
Traffic
Medium

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

Commercial Buildings

Sq. ft. Structure Grade Year built Stories
76,280 Mini warehouse C+ 1963 1
Floor distribution
Floors Sq. ft. Use Construction Condition Exterior wall Heating Air conditioning Plumbing
01-01 3,000 Mini-warehouse Central
01-01 25,440 Mini-warehouse
01-01 14,400 Warehouse Central
01-01 6,000 Mini-warehouse
01-01 2,000 Multi-use office Central
02-02 25,440 Mini-warehouse
Ownership

Ownership information for Syosset Self - 475 Underhill Boulevard, Syosset, NY

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

Sales history for Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791

Sale date Sale price Buyer name Seller name
03/20/2026 $15,675,000 XXX XX XXXXXXX XXX XXXXX XXXXXXXX XXX

*Most recent sale on record for this property.

More about Nassau County property records.

Title documents

Date Type Amount Party 1 Party 2
03/31/2026 - R
03/20/2026 - D		 Deed
(Deed Commercial/Vacant Land)		 XXXXX XXXXXXXX XXX XXX XX XXXXXXX XXX
05/23/2000 - R
03/11/2000 - D		 Deed XXXXX XXXXXXXX XXXXXXXXXX X XXXXX XXXXXXXX XXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for Syosset Self - 475 Underhill Boulevard, Syosset, NY

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

Current property tax
Tax year
2026
Tax class
Property tax
$232,069
Recent tax assessments
Market value
$3,397,800
Assessed value
$33,978
Transitional assessed value

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 $3,397,800 $33,978 682.999 $232,069 -1.84%
2025 $3,544,800 $35,448 666.972 $236,428 -3.78%
2024 $4,135,500 $38,857 644.549 $245,715 +2.26%
2023 $4,135,500 $41,355 686.201 $240,294 -18.99%
2022 $4,135,500 $41,355 717.269 $296,627 -24.38%
2021 $5,133,900 $51,339 764.093 $392,278 +77.16%
2020 $2,583,600 $25,836 857.052 $221,428 +5.64%
2019 $2,583,600 $25,836 811.322 $209,613 -2.15%
2018 $2,583,600 $25,836 829.133 $214,215 +6.31%
2017 $2,583,600 $25,836 779.92 $201,500 +13.10%
Permits

Permit information for Syosset Self - 475 Underhill Boulevard, Syosset, NY

No recently recorded permits for this property.

Neighborhood

Demographics by ZIP code

Total population
25,520
Median age
43.2
Average household income
$276,174
Family households
83.9%
People per household (average)
3.11
Occupied housing units
8,113
Owner-occupied units
93.5%
Median year structure built
1959
Median value mortgaged units
$968,800
Median value unmortgaged units
$878,600

Risk

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FEMA flood zones

FEMA flood zones
X

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Neighbors for Syosset Self - 475 Underhill Boulevard, Syosset, NY

8 Dorothy St, Syosset 10 Jean Pl, Syosset 345 Underhill Blvd, Syosset 485 Underhill Blvd, Syosset 2 Dorothy St, Syosset 425 Underhill Blvd, Syosset 325 Underhill Blvd, Syosset 15 Lenore St, Syosset 12 Jean Pl, Syosset 26 Cedar St, Syosset 575 Underhill Blvd, Syosset 6 Dorothy St, Syosset 14 Jean Pl, Syosset 313 Underhill Blvd, Syosset 225 Underhill Blvd, Syosset 24 Cedar St, Syosset 11 Lenore St, Syosset 4 Dorothy St, Syosset 28 Cedar St, Syosset 2 Lesley Dr, Syosset

Nearby ZIP codes for Syosset Self - 475 Underhill Boulevard, Syosset, NY

11545, Nassau County, NY 11548, Nassau County, NY 11554, Nassau County, NY 11560, Nassau County, NY 11568, Nassau County, NY 11590, Nassau County, NY 11709, Nassau County, NY 11714, Nassau County, NY 11724, Suffolk County, NY 11732, Nassau County, NY 11743, Suffolk County, NY 11747, Suffolk County, NY 11753, Nassau County, NY 11756, Nassau County, NY 11765, Nassau County, NY 11797, Nassau County, NY 11801, Nassau County, NY 11804, Nassau County, NY

Frequently asked questions

What is the year built for Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791?

The development at Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791 was built in 1963.

What is the market value of Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791?

The current market value of Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791 is $3,397,800.

What is the total square footage of Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791?

Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791 has a total of 76,280 square feet.

What is the price per square foot for this property?

$205 per square foot is the price for Syosset Self - 475 Underhill Boulevard, Syosset, NY 11791.

Disclaimer

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