Nassau County  »  11560  »  The Knolls  »  20 The Knolls

20 The Knolls, Locust Valley, NY 11560 - Property report

Also known as: 20 The Knolls

Property image for 20 The Knolls, Locust Valley, NY 11560
static Mapbox map

Property type

One Family Year - Round Residence (210.01)

Year built

1958

Acreage

0.326

Sale price

$640,000

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
20 The Knolls
ZIP code
11560
County
Nassau
Town/City
Oyster Bay
Village (SWIS code)
None (unincorporated town)
Parcel ID
30-68-41

Owner

Find out who owns 20 The Knolls, Locust Valley, NY 11560. Uncover corporate and individual owners with a free account.

Sales
Sale date
05/27/2020
Sale price
$640,000
Arm's length
Tax
Tax year
2026
Current property tax
$17,492
Tax class
Zoning & Use
Zoning
R1-10
Building
Property type
One Family Year - Round Residence (210.01)
Building sq. ft.
1,928
Buildings on lot
1
Stories
1
Year built
1958
Rooms
6
Bathrooms
2
Half bathrooms
1
Exterior wall
Frame
Building style
Split Level
Basement
Full
Attic
None
Fireplaces
1
Heating type
Central
Heating system
Hot water
Lot
Acreage
0.326
Topography
Level
Land
Primary site

Area overview

Walk score
31 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
18 /100.  Somewhat Bikeable
School district
3004

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

Ownership

Ownership information for 20 The Knolls, Locust Valley, NY

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

Sales history for 20 The Knolls, Locust Valley, NY 11560

Sale date Sale price Buyer name Seller name
05/27/2020 $640,000 XXXXXXXXX XXXXXX XXXX X XXXXXXX XXX XXX X/X XXXXXXX X XXXXX, X.X.; XXXXXXX XXXX XX/XXX; XXXXXXX XXXXXXX XXX
09/28/2005 $735,000 XXXXXXX XXXX XXXXXXXXX XXXXXX
09/18/1995 $325,000 XXXXXXXXX XXXXXX XXXXXX XXXX XXXXXX XXXXXXX

*Most recent sales on record for this property.

More about Nassau County property records.

Title documents

Date Type Amount Party 1 Party 2
08/25/2020 - R Other
(Mortgage satisfaction)		 XXXXXXX XXXXXXX XXXXXXXX XXXXXXX XXXXXX XXXXX
06/22/2020 - R
05/28/2020 - D		 Mortgage
(Fixed rate)		 XXXXXXXXX XXXXXX XXXXXXXX XXXXXXX XXXXXX XXXXX
06/22/2020 - R
05/27/2020 - D		 Deed XXXX X XXXXXXX XXX XXX XXXXXXXXX XXXXXX
10/11/2005 - R
09/28/2005 - D		 Deed XXXXXXXXX XXXXXX XXXXXXX XXXX
09/26/1995 - R
09/18/1995 - D		 Deed XXXXXX XXXX XXXXXX XXXXXXX XXXXXXXXX XXXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 20 The Knolls, Locust Valley, NY

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

Current property tax
Tax year
2026
Property tax
$17,492
Current school tax
Recent tax assessments
Market value
$668,000
Assessed value
$668
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 $668,000 $668 2618.547 $17,492 -0.90%
2025 $691,000 $691 2554.349 $17,651 -4.73%
2024 $715,054 $680 2724.483 $18,526 -8.56%
2023 $715,000 $715 2833.795 $20,262 -6.82%
2022 $715,000 $715 3041.286 $21,745 -6.59%
2021 $688,000 $688 3383.659 $23,280 +88.00%
2020 $352,000 $880 1407.096 $12,382 +6.36%
2019 $352,000 $880 1322.96 $11,642 -1.17%
2018 $375,200 $938 1255.818 $11,780 -1.67%
2017 $398,800 $997 1201.51 $11,979 +0.44%
Permits

Permit information for 20 The Knolls, Locust Valley, 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 20 The Knolls, Locust Valley, NY 11560 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)
Ann Macarthur Primary NR Public K-2 200 0.21
Locust Valley Intermediate School 7 Public 3-5 227 0.31
Portledge School NR Private PK-12 522 0.77
Portledge School NR Private PK-12 522 0.77
Friends Academy NR Private PK-12 765 1.12
Friends Academy NR Private PK-12 765 1.12
Mill Neck Manor School for Deaf Child NR Private PK, K-12 0 1.50
Gribbin School NR Public K-2 341 1.63
Connolly School 3 Public 3-5 305 1.78
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Locust Valley Middle School 8 Public 6-8 472 0.53
Portledge School NR Private PK-12 522 0.77
Friends Academy NR Private PK-12 765 1.12
Mill Neck Manor School for Deaf Child NR Private PK, K-12 0 1.50
Mill Neck Manor School For The Deaf NR Private PK, K-11 116 1.87
Mill Neck Manor School for the Deaf NR Private PK-12 106 1.92
Robert M Finley Middle School 5 Public 6-8 710 2.12
OYSTER BAY MIDDLE SCHOOL 5 Public 7-8 217 3.39
North Shore Middle School 9 Public K-8 646 3.82
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Locust Valley High School 9 Public 9-12 629 0.53
Portledge School NR Private PK-12 522 0.77
Friends Academy NR Private PK-12 765 1.12
Mill Neck Manor School for Deaf Child NR Private PK, K-12 0 1.50
Mill Neck Manor School For The Deaf NR Private PK, K-11 116 1.87
Mill Neck Manor School for the Deaf NR Private PK-12 106 1.92
Glen Cove High School 5 Public 9-12 1,050 1.96
Oyster Bay High School 7 Public 9-12 415 3.39
North Shore Senior High School 9 Public K-5, 9-12 764 3.58
Paul D Schreiber Senior High School 9 Public 9-12 1,613 5.82

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

Neighbors for 20 The Knolls, Locust Valley, NY

275 Buckram Rd, Locust Valley 18 The Knls, Locust Valley 14 The Knolls, Locust Valley 4 The Knolls, Locust Valley 25 Fox Rdg, Locust Valley 21 Fox Ridge Ln, Locust Valley 315 Buckram Rd, Locust Valley 2 The Knls, Locust Valley 257 Buckram Rd, Locust Valley 245 Buckram Rd, Locust Valley 6 The Knolls, Locust Valley 23 Fox Ridge Ln, Locust Valley 16 The Knolls, Locust Valley 19 Fox Ridge Ln, Locust Valley 5 Kathy CT, Locust Valley 10 The Knolls, Locust Valley 8 The Knolls, Locust Valley 3 Fox Ridge Ln, Locust Valley 247 Buckram Rd, Locust Valley 12 The Knolls, Locust Valley

Nearby ZIP codes for 20 The Knolls, Locust Valley, NY

11030, Nassau County, NY 11507, Nassau County, NY 11514, Nassau County, NY 11542, Nassau County, NY 11545, Nassau County, NY 11547, Nassau County, NY 11548, Nassau County, NY 11568, Nassau County, NY 11576, Nassau County, NY 11577, Nassau County, NY 11579, Nassau County, NY 11590, Nassau County, NY 11596, Nassau County, NY 11709, Nassau County, NY 11732, Nassau County, NY 11753, Nassau County, NY 11765, Nassau County, NY 11791, Nassau County, NY

Frequently asked questions

What is the year built for 20 The Knolls, Locust Valley, NY 11560?

The development at 20 The Knolls, Locust Valley, NY 11560 was built in 1958.

What is the total square footage of 20 The Knolls, Locust Valley, NY 11560?

20 The Knolls, Locust Valley, NY 11560 has a total of 1,928 square feet.

When was 20 The Knolls, Locust Valley, NY 11560 last sold and what was the sale price?

20 The Knolls, Locust Valley, NY 11560 was last sold on 05/27/2020 for $640,000.

What is the assessed value of 20 The Knolls, Locust Valley, NY 11560?

20 The Knolls, Locust Valley, NY 11560 is currently assessed at $668.

What are the property taxes for 20 The Knolls, Locust Valley, NY 11560?

The property taxes for 20 The Knolls, Locust Valley, NY 11560 total $17,491.

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