Suffolk County  »  11787  »  Valley Ave  »  21 Valley Ave

21 Valley Avenue, Smithtown, NY 11787 - Property report

Also known as: 21 Valley Ave

Property image for 21 Valley Avenue, Smithtown, NY 11787
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Property type

One Family Year-Round Residence (210)

Year built

1935

Acreage

0.88

General information

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Address
Primary address
21 Valley Avenue
ZIP code
11787
County
Suffolk
Village (SWIS code)
473489
Parcel ID
51-6-63

Owner

Find out who owns 21 Valley Avenue, Smithtown, NY 11787. Uncover corporate and individual owners with a free account.

Tax
Tax year
2025-2026
Current property tax
$18,571
Zoning & Use
Zoning
One-Family on One Acre of Lot Area (R-43)
Building
Property type
One Family Year-Round Residence (210)
Building sq. ft.
2,928
Buildings on lot
1
Stories
2
Year built
1935
AC
No
Bedrooms
4
Bathrooms
4
Kitchens
2
Exterior wall
Wood
Building style
Colonial
Basement
Full
Heating type
Hot water/steam
Heating fuel
Oil
Lot
Acreage
0.88
Road type
Improved
Site desirability
Superior

Area overview

Walk score
4 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
15 /100.  Somewhat Bikeable
School district
473401
Neighborhood type
Suburban
Neighborhood rating
Above averge

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

Ownership

Ownership information for 21 Valley Avenue, Smithtown, NY

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

Sales history for 21 Valley Avenue, Smithtown, NY 11787

No recently recorded sales for this property.

More about Suffolk County property records.

Title documents

No recently recorded documents for this property.

Tax

Property taxes for 21 Valley Avenue, Smithtown, 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
$18,571
Base tax
$18,420
Recent tax assessments
Market value
$893,750
Assessed value
$7,150

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 $893,750 $7,150 2576.282 $18,420 +4.31%
2024-2025 $831,395 $7,150 2469.867 $17,660 +16.07%
2023-2024 $821,840 $7,150 2127.961 $15,215 +2.50%
2022-2023 $1,021,428 $7,150 2076.086 $14,844 -11.46%
2021-2022 $638,392 $7,150 2344.675 $16,764 +1.58%
2020-2021 $621,739 $7,150 2308.127 $16,503 -0.14%
2019-2020 $616,379 $7,150 2311.354 $16,526 +2.77%
2018-2019 $581,301 $7,150 2248.977 $16,080 +3.52%
2017-2018 $545,802 $7,150 2172.584 $15,534 +3.92%
2016-2017 $541,667 $7,150 2090.572 $14,948 -2.40%
Permits

Permit information for 21 Valley Avenue, Smithtown, NY

No recently recorded permits for this property.

Neighborhood

Smithtown residential market stats

Access a detailed real estate market overview of Smithtown so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Smithtown and compare it to other neighborhoods in Suffolk.

Median sale price

$735,000

2.8% Y-o-Y

Median price/sq. ft.

$448

16.4% Y-o-Y

Suffolk county median sale price

$677,000

5.9% Y-o-Y

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 21 Valley Avenue, Smithtown, NY 11787 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)
Parkview Elementary School 9 Public PK, K-3 405 1.50
Parkview Elementary School 9 Public PK, K-3 405 1.50
Smithtown Elementary School 6 Public K-5 514 1.62
Smithtown Christian School NR Private PK, K-12 529 1.68
Smithtown Christian School NR Private PK, K-12 529 1.68
Developmental Disabilities Institute NR Private 222 1.70
Accompsett Elementary School 7 Public K-5 527 1.79
Dogwood Elementary School 6 Public K-5 352 1.91
St Patrick Elementary School NR Private PK, K-8 463 2.04
St Patrick Elementary School NR Private PK, K-8 463 2.04
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Nesaquake Middle School 7 Public 6-8 473 1.47
Smithtown Christian School NR Private PK, K-12 529 1.68
Developmental Disabilities Institute NR Private 222 1.70
Accompsett Middle School 7 Public 6-8 532 1.85
St Patrick Elementary School NR Private PK, K-8 463 2.04
Ss Philip & James School NR Private PK-8 214 2.16
William T Rogers Middle School 7 Public 6-8 636 2.56
Harbor Country Day School NR Private PK-8 134 2.91
Great Hollow Middle School 7 Public 6-8 828 3.18
Hauppauge Middle School 6 Public 6-8 748 3.43
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Smithtown Christian School NR Private PK, K-12 529 1.68
Developmental Disabilities Institute NR Private 222 1.70
Kings Park High School 9 Public 9-12 857 1.88
Smithtown High School West 10 Public 9-12 1,270 2.01
Smithtown High School East 10 Public 9-12 1,475 2.14
The Knox School NR Private 6-12 156 3.00
Hauppauge High School 9 Public 9-12 1,079 3.58
Sappo School NR Private K-12 67 3.62
International Christian School NR Private PK, K-12 0 4.08
Commack High School 9 Public 9-12 1,861 4.25

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

Neighbors for 21 Valley Avenue, Smithtown, NY

147 Landing Meadow Rd, Smithtown 152 Landing Meadow Rd, Smithtown 154 Landing Meadow Rd, Smithtown 37 Stony Hill Path, Smithtown 410 Landing Ave, Smithtown 151 Landing Meadow Rd, Smithtown 150 Landing Meadow Rd, Smithtown 108 Oakside Dr, Smithtown 33 Valley Ave, Smithtown 430 Landing Ave, Smithtown 27 Valley Ave, Smithtown 149 Landing Meadow Rd, Smithtown 106 Oakside Dr, Smithtown 79 Oakside Rd, Smithtown 25 Valley Ave, Smithtown 37 Valley Ave, Smithtown 156 Landing Meadow Rd, Smithtown 26 Stony Hill Path, Smithtown 35 Stony Hill Path, Smithtown 426 Landing Ave, Smithtown

Nearby ZIP codes for 21 Valley Avenue, Smithtown, NY

11716, Suffolk County, NY 11717, Suffolk County, NY 11720, Suffolk County, NY 11722, Suffolk County, NY 11725, Suffolk County, NY 11731, Suffolk County, NY 11733, Suffolk County, NY 11739, Suffolk County, NY 11749, Suffolk County, NY 11751, Suffolk County, NY 11752, Suffolk County, NY 11754, Suffolk County, NY 11755, Suffolk County, NY 11767, Suffolk County, NY 11768, Suffolk County, NY 11779, Suffolk County, NY 11780, Suffolk County, NY 11788, Suffolk County, NY 11790, Suffolk County, NY

Frequently asked questions

What is the year built for 21 Valley Avenue, Smithtown, NY 11787?

The development at 21 Valley Avenue, Smithtown, NY 11787 was built in 1935.

What is the total square footage of 21 Valley Avenue, Smithtown, NY 11787?

21 Valley Avenue, Smithtown, NY 11787 has a total of 2,928 square feet.

What is the assessed value of 21 Valley Avenue, Smithtown, NY 11787?

21 Valley Avenue, Smithtown, NY 11787 is currently assessed at $7,150.

What are the property taxes for 21 Valley Avenue, Smithtown, NY 11787?

The property taxes for 21 Valley Avenue, Smithtown, NY 11787 total $18,420.

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