Nassau County  »  11709  »  Baldwin Blvd  »  21 Baldwin Blvd

21 Baldwin Boulevard, Bayville, NY 11709 - Property report

Also known as: 21 Baldwin Blvd

Property image for 21 Baldwin Boulevard, Bayville, NY 11709
static Mapbox map

Property type

One Family Year - Round Residence (210.01)

Year built

1923

Acreage

0.134

Sale price

$800K

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
21 Baldwin Boulevard
ZIP code
11709
County
Nassau
Town/City
Oyster Bay
Village (SWIS code)
Bayville
Parcel ID
29-85-13

Owner

Find out who owns 21 Baldwin Boulevard, Bayville, NY 11709. Uncover corporate and individual owners with a free account.

Sales
Sale date
08/28/2025
Sale price
$800,000
Arm's length
Tax
Tax year
2026
Current property tax
$10,254
Tax class
Zoning & Use
Zoning
C
Building
Property type
One Family Year - Round Residence (210.01)
Building sq. ft.
2,060
Buildings on lot
1
Stories
2
Year built
1923
Rooms
10
Bathrooms
2
Exterior wall
Alum/Vinyl
Building style
Colonial
Basement
Full
Attic
None
Fireplaces
1
Heating type
Central
Heating system
Hot water
Lot
Acreage
0.134
Topography
Level
Land
Primary site

Area overview

Walk score
61 /100.  Somewhat Walkable
Transit score
0 /100.  Minimal Transit
Bike score
36 /100.  Somewhat Bikeable

Data provided by: Walk Score®

School district
3006

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

Ownership

Ownership information for 21 Baldwin Boulevard, Bayville, NY

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

Sales history for 21 Baldwin Boulevard, Bayville, NY 11709

Sale date Sale price Buyer name Seller name
08/28/2025 $800,000 XXXXXXXX XXXXXXX; XXXXXXXX XXXXXXX XXXXXXXX XXXXXX; XXXXXXXX XXXXXXXX XXX; XXXXXXXX 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
09/23/2025 - R
08/28/2025 - D		 Deed
(Deed-Deed)		 XXXXXXXX XXXXXX XXXXXXXX XXXXXXX
09/23/2025 - R
08/28/2025 - D		 Mortgage
(Mtg-Mortgage)		 XXXXXXXX XXXXXXX XXXX
09/17/2025 - R Other
(Mortgage Satisfaction)		 XXXXXXXX XXXXXX XXXXXXX XXX XX
05/07/2021 - R Other
(Mortgage Satisfaction)		 XXXXXXXX XXXXXX XXXX XX XXXXXXX XX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 21 Baldwin Boulevard, Bayville, 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
$10,254
Base tax
$11,047
Current school tax
Recent tax assessments
Market value
$542,000
Assessed value
$542
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 $542,000 $542 2038.267 $11,047 +2.00%
2025 $542,000 $542 1998.347 $10,831 -6.45%
2024 $542,000 $542 2136.237 $11,578 -9.26%
2023 $571,000 $571 2234.706 $12,760 -2.00%
2022 $542,000 $542 2402.402 $13,021 -12.12%
2021 $551,000 $551 2688.928 $14,816 +61.46%
2020 $326,000 $815 1125.923 $9,176 +4.29%
2019 $330,800 $827 1063.921 $8,799 +6.07%
2018 $330,800 $827 1003.06 $8,295 +3.58%
2017 $330,800 $827 968.398 $8,009 +6.78%
Permits

Permit information for 21 Baldwin Boulevard, Bayville, 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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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Bayville Elementary School NR Public K-2 179 0.34
Bayville Intermediate School 7 Public 3-5 190 0.44
Mill Neck Manor School For The Deaf NR Private PK, K-11 116 1.71
Mill Neck Manor School For The Deaf NR Private PK, K-11 116 1.71
Mill Neck Manor School for Deaf Child NR Private PK, K-12 0 1.77
Mill Neck Manor School for Deaf Child NR Private PK, K-12 0 1.77
Mill Neck Manor School for the Deaf NR Private PK-12 106 1.84
Locust Valley Intermediate School 7 Public 3-5 227 1.92
Ann Macarthur Primary NR Public K-2 200 2.03
Theodore Roosevelt School NR Public PK, K-2 325 3.04
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Mill Neck Manor School For The Deaf NR Private PK, K-11 116 1.71
Mill Neck Manor School for Deaf Child NR Private PK, K-12 0 1.77
Mill Neck Manor School for the Deaf NR Private PK-12 106 1.84
Locust Valley Middle School 8 Public 6-8 472 1.85
Portledge School NR Private PK-12 522 2.75
Friends Academy NR Private PK-12 765 3.34
OYSTER BAY MIDDLE SCHOOL 5 Public 7-8 217 3.55
Robert M Finley Middle School 5 Public 6-8 710 3.98
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Mill Neck Manor School For The Deaf NR Private PK, K-11 116 1.71
Mill Neck Manor School for Deaf Child NR Private PK, K-12 0 1.77
Mill Neck Manor School for the Deaf NR Private PK-12 106 1.84
Locust Valley High School 9 Public 9-12 629 1.85
Portledge School NR Private PK-12 522 2.75
Friends Academy NR Private PK-12 765 3.34
Glen Cove High School 5 Public 9-12 1,050 3.55
Oyster Bay High School 7 Public 9-12 415 3.55
North Shore Senior High School 9 Public K-5, 9-12 764 5.79
Cold Spring Harbor High School 10 Public 7-12 739 6.63

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

Neighbors for 21 Baldwin Boulevard, Bayville, NY

25 Baldwin Blvd, Bayville 11 Baldwin Blvd, Bayville 23 Baldwin Blvd, Bayville 33 Baldwin Blvd, Bayville 15 Baldwin Blvd, Bayville 15 Knollwood Ave, Bayville 31 Baldwin Blvd, Bayville 37 Baldwin Blvd, Bayville 19 Baldwin Blvd, Bayville 5 Knollwood Ave, Bayville 13 Knollwood Ave, Bayville 39 Baldwin Blvd, Bayville 7 Knollwood Ave, Bayville 11 Knollwood Ave, Bayville 27 Baldwin Blvd, Bayville 35 Baldwin Blvd, Bayville 18 Dickerson Ln, Bayville 13 Baldwin Blvd, Bayville 9 Baldwin Blvd, Bayville 3 Knollwood Ave, Bayville

Nearby ZIP codes for 21 Baldwin Boulevard, Bayville, NY

10580, Westchester County, NY 11542, Nassau County, NY 11545, Nassau County, NY 11547, Nassau County, NY 11548, Nassau County, NY 11560, Nassau County, NY 11568, Nassau County, NY 11576, Nassau County, NY 11579, Nassau County, NY 11590, Nassau County, NY 11724, Suffolk County, NY 11732, Nassau County, NY 11743, Suffolk County, NY 11753, Nassau County, NY 11765, Nassau County, NY 11791, Nassau County, NY 11797, Nassau County, NY 11801, Nassau County, NY

Frequently asked questions

What is the year built for 21 Baldwin Boulevard, Bayville, NY 11709?

The development at 21 Baldwin Boulevard, Bayville, NY 11709 was built in 1923.

What is the total square footage of 21 Baldwin Boulevard, Bayville, NY 11709?

21 Baldwin Boulevard, Bayville, NY 11709 has a total of 2,060 square feet.

When was 21 Baldwin Boulevard, Bayville, NY 11709 last sold and what was the sale price?

21 Baldwin Boulevard, Bayville, NY 11709 was last sold on 08/28/2025 for $800,000.

What is the assessed value of 21 Baldwin Boulevard, Bayville, NY 11709?

21 Baldwin Boulevard, Bayville, NY 11709 is currently assessed at $542.

What are the property taxes for 21 Baldwin Boulevard, Bayville, NY 11709?

The property taxes for 21 Baldwin Boulevard, Bayville, NY 11709 total $11,047.

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