Suffolk County  »  11706  »  Costello Ave  »  9 Costello Ave

9 Costello Avenue, Bay Shore, NY 11706 - Property report

Also known as: 9 Costello Ave

Property image for 9 Costello Avenue, Bay Shore, NY 11706
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Property type

One Family Year-Round Residence (210)

Year built

1930

Acreage

0.24

General information

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Address
Primary address
9 Costello Avenue
ZIP code
11706
County
Suffolk
Village (SWIS code)
472889
Parcel ID
291-1-49

Owner

Find out who owns 9 Costello Avenue, Bay Shore, NY 11706. Uncover corporate and individual owners with a free account.

Tax
Tax year
2025-2026
Current property tax
$8,366
Zoning & Use
Zoning
Residential (A)
Building
Property type
One Family Year-Round Residence (210)
Building sq. ft.
1,554
Year built
1930
Lot
Acreage
0.24

Area overview

Walk score
46 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
46 /100.  Somewhat Bikeable
School district
472801

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

Ownership

Ownership information for 9 Costello Avenue, Bay Shore, NY

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

Sales history for 9 Costello Avenue, Bay Shore, NY 11706

No recently recorded sales for this property.

More about Suffolk County property records.

Title documents

Date Type Amount Party 1 Party 2
12/05/2014 - R
07/12/2014 - D		 Deed XXXXXXXX XXXXX XXXXX XXXXXXXX XXX XXXXXXX XXXXXXXX, XX

*Most recent recorded document on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 9 Costello Avenue, Bay Shore, NY

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

Current property tax
Tax year
2025-2026
Current property tax
$8,366
Base tax
$10,951
Recent tax assessments
Market value
$504,225
Assessed value
$35,800

More about Suffolk 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
2025-2026 $504,225 $35,800 30.589 $10,951 +4.40%
2024-2025 $504,225 $35,800 29.299 $10,489 +4.40%
2023-2024 $491,758 $35,800 28.063 $10,047 -0.15%
2022-2023 $432,367 $35,800 28.104 $10,061 +0.31%
2021-2022 $385,776 $35,800 28.016 $10,030 +2.87%
2020-2021 $369,072 $35,800 27.234 $9,750 -23.68%
2019-2020 $315,419 $35,800 35.683 $12,775 +46.21%
2018-2019 $315,419 $35,800 24.405 $8,737 +1.99%
2017-2018 $295,380 $35,800 23.928 $8,566 -2.03%
2016-2017 $281,890 $35,800 24.423 $8,743 +3.10%
Permits

Permit information for 9 Costello Avenue, Bay Shore, 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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Access the detailed traffic volume map for 9 Costello Avenue, Bay Shore, NY 11706 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)
Mary G Clarkson School NR Public K-2 446 0.34
Brook Avenue Elementary School NR Public K-2 400 0.68
Heritage Christian Academy NR Private PK-5 41 0.69
Heritage Christian Academy NR Private PK-5 41 0.69
St Patrick School NR Private PK-8 534 0.70
St Patrick School NR Private PK-8 534 0.70
Fifth Avenue School NR Public K-2 383 0.87
Oak Park Elementary School 2 Public K-5 711 1.43
Hemlock Elementary School 3 Public K-5 617 1.53
Commack Road Elementary School 3 Public 2-5 397 1.60
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Bay Shore Middle School 5 Public 6-8 1,298 0.13
St Patrick School NR Private PK-8 534 0.70
South Middle School 3 Public 6-8 1,033 1.74
Islip Middle School 4 Public 6-8 641 1.76
MDQ Academy NR Private PK-12 412 2.21
West Middle School 4 Public 6-8 848 2.50
Udall Road Middle School 6 Public 6-8 445 2.56
Our Lady Of Lourdes School NR Private PK-8 209 2.90
East Middle School 4 Public 6-8 1,159 2.91
St Peters By The Sea Episcopal Day School NR Private PK, K-8 176 2.92
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Bay Shore Senior High School 5 Public 9-12 1,910 0.76
Islip High School 9 Public 9-12 892 1.72
Brentwood High School 3 Public 9-12 4,641 2.16
MDQ Academy NR Private PK-12 412 2.21
Freshman Center NR Public 9 1,247 3.09
Ascent School for Individuals With Autism NR Private 4-12 24 3.29
East Islip High School 8 Public 9-12 1,145 3.65
West Islip Senior High School 9 Public 9-12 1,262 3.89
St John The Baptist Diocesan High School NR Private 9-12 1,335 3.91
North Babylon High School 6 Public 9-12 1,506 3.98

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

Neighbors for 9 Costello Avenue, Bay Shore, NY

72 Greenwood Rd, Bay Shore 6 Costello Ave, Bay Shore 1438 E Forks Rd, Bay Shore 57 Greenwood Rd, Bay Shore 94 Beldon Ln, Bay Shore 10 Thomas St, Bay Shore 1432 E Forks Rd, Bay Shore 6 Mars St, Bay Shore 78 Greenwood Rd, Bay Shore 1396 E Forks Rd, Bay Shore 86 Beldon Ln, Bay Shore 4 Mars St, Bay Shore 1434 E Forks Rd, Bay Shore 11 Costello Ave, Bay Shore 2 Mars St, Bay Shore 1430 E Forks Rd, Bay Shore 100 Clovernook Ave, Bay Shore 1 Mars St, Bay Shore 10 Costello Ave, Bay Shore 1436 E Forks Rd, Bay Shore

Nearby ZIP codes for 9 Costello Avenue, Bay Shore, NY

11702, Suffolk County, NY 11703, Suffolk County, NY 11704, Suffolk County, NY 11716, Suffolk County, NY 11717, Suffolk County, NY 11718, Suffolk County, NY 11722, Suffolk County, NY 11729, Suffolk County, NY 11730, Suffolk County, NY 11739, Suffolk County, NY 11749, Suffolk County, NY 11751, Suffolk County, NY 11752, Suffolk County, NY 11769, Suffolk County, NY 11770, Suffolk County, NY 11779, Suffolk County, NY 11782, Suffolk County, NY 11788, Suffolk County, NY 11795, Suffolk County, NY 11796, Suffolk County, NY

Frequently asked questions

What is the year built for 9 Costello Avenue, Bay Shore, NY 11706?

The development at 9 Costello Avenue, Bay Shore, NY 11706 was built in 1930.

What is the total square footage of 9 Costello Avenue, Bay Shore, NY 11706?

9 Costello Avenue, Bay Shore, NY 11706 has a total of 1,554 square feet.

What is the assessed value of 9 Costello Avenue, Bay Shore, NY 11706?

9 Costello Avenue, Bay Shore, NY 11706 is currently assessed at $35,800.

What are the property taxes for 9 Costello Avenue, Bay Shore, NY 11706?

The property taxes for 9 Costello Avenue, Bay Shore, NY 11706 total $10,950.

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