Nassau County  »  12 Knowles St

12 Knowles Street, Plainview, NY 11803 - Property report

Also known as: 12 Knowles St

Property image for 12 Knowles Street, Plainview, NY 11803
static Mapbox map

Property type

One Family Year - Round Residence (210.01)

Year built

1957

Acreage

0.278

Sale price

$520,000

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
12 Knowles Street
ZIP code
11803
County
Nassau
Town/City
Oyster Bay
Village (SWIS code)
None (unincorporated town)
Parcel ID
12-490-42

Owner

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Sales
Sale date
08/30/2018
Sale price
$520,000
Arm's length
Tax
Tax year
2026
Current property tax
$17,663
Tax class
Zoning & Use
Zoning
R1-7
Building
Property type
One Family Year - Round Residence (210.01)
Building sq. ft.
1,470
Buildings on lot
1
Stories
1
Year built
1957
Rooms
6
Bathrooms
2
Exterior wall
Brick
Building style
Ranch
Basement
Full
Attic
None
Fireplaces
2
Heating type
Central/AC
Heating system
Central w ac
Lot
Acreage
0.278
Topography
Level
Land
Primary site

Area overview

Walk score
80 /100.  Very Walkable
Transit score
20 /100.  Minimal Transit
Bike score
50 /100.  Bikeable
School district
3019

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

Ownership

Ownership information for 12 Knowles Street, Plainview, NY

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

Sales history for 12 Knowles Street, Plainview, NY 11803

Sale date Sale price Buyer name Seller name
08/30/2018 $520,000 XXXXXXXX XXXXX; XXXXXXXX XXXXXX X XXXXXXXX XXXX

*Most recent sale on record for this property.

More about Nassau County property records.

Title documents

Date Type Amount Party 1 Party 2
01/13/2026 - R
12/11/2025 - D		 Mortgage
(Mtg-mortgage)		 XXXXXXXX XXXXX XXXXXXXXXXX XXXXXXXXX
07/21/2025 - R Assignment
(Assign mortgage)		 XXXXXXXXXXX XXXXXXXXX XXXXXXXX XXXXXXX XXXX XXXXXXXXXXX XXXXXXXXX XXXXXXXX XXXXXXX XXXX
09/26/2018 - R Other
(Mortgage satisfaction)		 XXXXXXXX XXXX XXXXX XXXXX XXXX XX
09/20/2018 - R Other
(Mortgage satisfaction)		 XXXXXXXX XXXX XXXXXXXX XX
09/10/2018 - R
08/30/2018 - D		 Deed XXXXXXXX XXXX XXXXXXXX XXXXX
09/10/2018 - R
08/30/2018 - D		 Mortgage
(Fixed rate)		 XXXXXXXX XXXXX XXXXXXXXXXX XXXXXXXXX XXXXXXXX XXXXXXX XXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 12 Knowles Street, Plainview, 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
$17,663
Base tax
$17,969
Current school tax
Recent tax assessments
Market value
$588,000
Assessed value
$588
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 $588,000 $588 3055.951 $17,969 +2.88%
2025 $588,000 $588 2970.267 $17,465 -6.55%
2024 $587,600 $588 3178.305 $18,688 -4.91%
2023 $588,000 $588 3342.412 $19,653 -9.82%
2022 $588,000 $588 3706.543 $21,794 -15.62%
2021 $614,000 $614 4206.654 $25,829 +88.86%
2020 $288,000 $720 1899.467 $13,676 -1.10%
2019 $308,400 $771 1793.496 $13,828 -0.64%
2018 $329,200 $823 1690.954 $13,917 -21.63%
2017 $438,800 $1,097 1618.749 $17,758 +6.17%
Permits

Permit information for 12 Knowles Street, Plainview, 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)
Good Shepherd Lutheran School NR Private 0 0.28
Hebrew Academy of Nassau-Plainview Campus NR Private PK-6 142 0.41
Hebrew Academy of Nassau-Plainview Campus NR Private PK-6 142 0.41
Plainview Old Bethpage Middle School 8 Public 5-8 889 0.43
Miss Sue's Nursery School and Kindergarten NR Private 0 0.63
H B Mattlin Middle School 8 Public 5-8 772 0.64
Pasadena Elementary School 9 Public K-4 439 0.87
Kramer Lane Elementary School 8 Public K-5 387 0.97
Stratford Road School 9 Public K-4 626 1.16
Judy Jacobs Parkway Elementary School 8 Public K-4 392 1.23
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Good Shepherd Lutheran School NR Private 0 0.28
Plainview Old Bethpage Middle School 8 Public 5-8 889 0.43
Miss Sue's Nursery School and Kindergarten NR Private 0 0.63
H B Mattlin Middle School 8 Public 5-8 772 0.64
Our Lady Of Mercy School NR Private PK-8 195 1.43
John F Kennedy Middle School 8 Public 6-8 717 1.85
H B Thompson Middle School 9 Public 6-8 997 2.11
Fusion Academy Woodbury Ny NR Private 6-12 75 2.23
St Ignatius Loyola School NR Private PK, K-8 226 2.46
Hicksville Middle School 4 Public 6-8 1,185 2.68
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Good Shepherd Lutheran School NR Private 0 0.28
Miss Sue's Nursery School and Kindergarten NR Private 0 0.63
Plainview Old Bethpage JFK High School 10 Public 9-12 1,649 0.95
Bethpage Senior High School 9 Public 9-12 932 1.50
Fusion Academy Woodbury Ny NR Private 6-12 75 2.23
St Anthonys High School NR Private 9-12 2,410 2.43
Long Island Christian Academy NR Private K-10 0 2.77
Hicksville High School 6 Public 9-12 1,852 3.03
P.S. 256 NR Public PK, K-12 500 3.22
Syosset Senior High School 10 Public 9-12 2,266 3.71

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

Neighbors for 12 Knowles Street, Plainview, NY

154 Grace St, Plainview 34 Knowles St, Plainview 38 Knowles St, Plainview 29 Randy Ln, Plainview 133 Grace St, Plainview 135 Grace St, Plainview 8 Knowles St, Plainview 148 Grace St, Plainview 18 Knowles St, Plainview 137 Grace St, Plainview 146 Grace St, Plainview 51 Randy Ln, Plainview 156 Grace St, Plainview 152 Grace St, Plainview 22 Knowles St, Plainview 30 Knowles St, Plainview 53 Randy Ln, Plainview 150 Grace St, Plainview 26 Knowles St, Plainview 55 Randy Ln, Plainview

Nearby ZIP codes for 12 Knowles Street, Plainview, NY

11554, Nassau County, NY 11568, Nassau County, NY 11590, Nassau County, NY 11714, Nassau County, NY 11724, Suffolk County, NY 11732, Nassau County, NY 11735, Nassau County, NY 11735, Suffolk County, NY 11743, Suffolk County, NY 11746, Suffolk County, NY 11747, Suffolk County, NY 11753, Nassau County, NY 11756, Nassau 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 11804, Nassau County, NY

Frequently asked questions

What is the year built for 12 Knowles Street, Plainview, NY 11803?

The development at 12 Knowles Street, Plainview, NY 11803 was built in 1957.

What is the total square footage of 12 Knowles Street, Plainview, NY 11803?

12 Knowles Street, Plainview, NY 11803 has a total of 1,470 square feet.

When was 12 Knowles Street, Plainview, NY 11803 last sold and what was the sale price?

12 Knowles Street, Plainview, NY 11803 was last sold on 08/30/2018 for $520,000.

What is the assessed value of 12 Knowles Street, Plainview, NY 11803?

12 Knowles Street, Plainview, NY 11803 is currently assessed at $588.

What are the property taxes for 12 Knowles Street, Plainview, NY 11803?

The property taxes for 12 Knowles Street, Plainview, NY 11803 total $17,968.

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