Off market dec 2021 for $18M

$17,163,583

•

13,347

sq ft

151 Post Rd, Old Westbury, NY 11568

About this home

Commanding 108 acres, this immense and spectacular country estate includes a 26-room magnificent slate-roofed brick Georgian-style manor house built in 1932 by architect Henry Sedgwick for Robert Winthrop. The house is characterized by beautiful architectural details, elegant and grandly scaled rooms, high ceilings, 10 wood-burning fireplaces, and pastoral vistas from every room. Numerous terraces surrounding the house overlook expansive lawns and offer opportunities for al fresco entertaining and relaxing. There is a pool and pool house, tennis court, playhouse, extensive stables and paddocks, a squash court, large barns, cottages and numerous out-buildings and garages all set amid secluded rolling hills and woods and open fields. Located in the incorporated village of Old Westbury, the manor house has 7 master bedrooms, 9 full baths and 3 half baths, ample staff quarters, a wine cellar, central a/c, and a generator. Jericho/Westbury school districts. Approved sub-division., Additional information: Appearance:Excellent,ExterioFeatures:Tennis,Interior Features:Guest Quarters,Separate Hotwater Heater:Yes

Single-familyProperty Type

1932Year Built

108.04 acresLot Size

$1,286Est. Price/Sq.Ft.

Listing by Christina Porter • Daniel Gale Sothebys Intl Rlty

Listing by Lois Kirschenbaum • Daniel Gale Sothebys Intl Rlty

Bought with Neena Chowdhary • Daniel Gale Sothebys Intl Rlty

Redfin checked: 2 minutes ago

•Source:OneKey® MLS as Distributed by MLS Grid #L3254685

Redfin Estimate

$17,163,583

$836K since sold in December 2021$2.5M since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 778.2% higher than the average sale price ($1.95M) of 6 comparable homes.

SOLD MAY 26, 2026
$1,575,000
A
7 beds5.5 baths9,076 sq ft
2 Langley Ln, Old Westbury, NY 11568
Listing by Four Seasons Realty Team
SOLD JUL 22, 2026
$4,210,000
B
6 beds5.5 baths10,085 sq ft
10 Orchard Ln, Old Westbury, NY 11568
Listing by Compass Greater NY LLC
SOLD SEP 3, 2026
$2,000,000
C
5 beds3 baths4,482 sq ft
20 Rolling Hill Rd, Old Westbury, NY 11568
Listing by BERKSHIRE HATHAWAY
SOLD APR 2, 2026
$940,000
D
5 beds5 baths2,740 sq ft
7 Rugby Rd, Westbury, NY 11590
Listing by Handsome Real Estate Inc
SOLD SEP 18, 2026
$2,050,000
E
5 beds4.5 baths5,001 sq ft
42 Clocktower Ln, Old Westbury, NY 11568
Listing by BERKSHIRE HATHAWAY
SOLD SEP 22, 2026
$951,000
F
4 beds3.5 baths2,160 sq ft
621 Oxford St, Westbury, NY 11590
Listing by Douglas Elliman Real Estate

Claim this home to receive a free report every month with insights on the changing estimate.

Market trends in 11568, NY

Last updated September 2026

Buyer's Market

Seller's Market

Buyer's market

Sale-to-List Price

87.5%

5.6% MoM

Median sale price

$2.5M

$990K MoM

Avg. days on market

133d

1 days MoM

Recently sold homes

2 MoM

New listings for sale

$4,650,000
5 beds6 baths6,529 sq ft
11 Surrey Ln, Old Westbury, NY 11568
Listing by Douglas Elliman Real Estate
$4,185,000
6 beds7.5 baths7,807 sq ft
47 Red Ground Rd, Old Westbury, NY 11568
Listing by Daniel Gale Sothebys Intl Rlty
3D WALKTHROUGH
$7,280,000
6 beds7 baths8,001 sq ft
101 Wheatley Rd, Old Westbury, NY 11568
Listing by Compass Greater NY LLC
See all

Provided by Redfin

Sale history for 151 Post Rd

Year

Property tax

Land + Additions

Assessment*

2025

$2,242 (+1.5%)

$88

2024

$2,209 (+2.2%)

$88

2023

$2,161 (+3.3%)

$88

2022

$2,093 (+3.7%)

$88

2021

$2,018 (−5.8%)

$88

2020

$2,142 (+11.4%)

$88

2019

$1,924 (+6.8%)

$85

2018

$1,801 (+2.5%)

$114

2017

$1,757 (+2.7%)

$114

2016

$1,711 (+8.2%)

$114

2015

$1,582 (+5.4%)

$114

2014

$1,501 (+5.2%)

$114

2013

$1,427 (−23.6%)

$163

2012

$1,867 (+21.4%)

$178

2011

$1,538 (+25.4%)

$177

2010

$1,226 (+7.4%)

$167

2009

$1,142

$165

Tax history for 151 Post Rd

Year

Property tax

Land + Additions

Assessment*

2025

$2,242 (+1.5%)

$88

2024

$2,209 (+2.2%)

$88

2023

$2,161 (+3.3%)

$88

2022

$2,093 (+3.7%)

$88

2021

$2,018 (−5.8%)

$88

2020

$2,142 (+11.4%)

$88

2019

$1,924 (+6.8%)

$85

2018

$1,801 (+2.5%)

$114

2017

$1,757 (+2.7%)

$114

2016

$1,711 (+8.2%)

$114

2015

$1,582 (+5.4%)

$114

2014

$1,501 (+5.2%)

$114

2013

$1,427 (−23.6%)

$163

2012

$1,867 (+21.4%)

$178

2011

$1,538 (+25.4%)

$177

2010

$1,226 (+7.4%)

$167

2009

$1,142

$165

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Beds

—

Baths

—

Stories

—

Lot width

—

Lot depth

—

Lot size

2 Acres

Year renovated

—

Sq. Ft.

—

Year built

—

Style

Vacant Land

County

Nassau County

APN

17015 00020

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 2, 2026.

Property details

Parking

Parking Information
Parking Features: Detached, Private

Interior

Fireplace Information
Has Fireplace
Fireplaces Total: 10

Heating & Cooling
Cooling: Central Air
Heating: Hot Water, Oil

Interior Features
Interior Features: Eat-in Kitchen,Entrance Foyer,Formal Dining,Pantry,Walk-In Closet(s)
Appliances: Dishwasher, Dryer, Freezer, Refrigerator, Oil Water Heater
Flooring: Hardwood
Levels: Three Or More
Patio And Porch Features: Patio

Room Information
Room Description: Entrance Foyer w/French Zuber wallpaper, Library/Fireplace, Reception Foyer, Living Room/Fireplace, High Ceilings, French Doors to Patio, Walnut Paneled Study , Fireplace, Reclaimed Parquet Floors, Formal Dining Room/Fireplace, ||Gourmet Eat In Kitchen, Enclosed Porch, Home Office, Two Powder Rooms, Staff Apartment||Master Suite, Two Baths, Dressing Room, Sun Room, Six Family Bedrooms, Five Baths, Media Room, Staff Quarters,Two Bedrooms, Bath, Storage ||Finished, Storage, Cedar Closet, Bath ||Walkout, Wine Cellar, Laundry, Utilities, Storage
Basement YN: No
Attic: Finished,Partial
Rooms Total: 27
Basement: Partial
Additional Rooms: Home Office,Library/Den

Bathroom Information
Bathrooms Full: 9
Bathrooms Half: 3

Exterior

Exterior Features
Exterior Features: Private Entrance
Construction Materials: Brick
Fencing: Fenced
Other Structures: Barn(s), Outbuilding, Stable(s), Workshop
Security Features: Security System

Pool Information
Has Private Pool
Pool Features: In Ground

Lot Information
Additional Parcels YN: No
Lot Features: Part Wooded, Sprinklers In Front, Sprinklers In Rear

Property Information
Living Area Source: Public Records
Property Sub Type: Single Family Residence

Financial

Tax Information
Tax Section: 17
Tax Annual Amount: $675,854.06

Financial Information
Buyer Financing: Cash

Utilities

Utility Information
Electric: Generator
Sewer: Cesspool
Utilities: Trash Collection Private

Location

School Information
Middle Or Junior School: Jericho Middle School
High School: Jericho Senior High School
High School District: Jericho

Location Information
Village: Old Westbury
Directions: L.I.E. to Glen Cove Road Rd Exit-Service Rd Going East. Make Left on Post Rd. 1st Driveway on Right Going North. Sign Says Groton Place
County Or Parish: Nassau County

Public facts

Beds: —
Baths: —
Sq. Ft.: —
Stories: —
Lot Size: 2 acres
Style: Vacant Land
Year Built: —
Year Renovated: —
County: Nassau County
APN: 17015 00020

Home facts updated by county records on Oct 2, 2026

Around this home

Schools

Powells Lane School

Public 1-5 • Assigned • 1.3mi

4/10

Westbury Middle School

Public 6-8 • Assigned • 1.5mi

3/10

Westbury High School

Public 9-12 • Assigned • 1.0mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

5/10 Heat Factor

7 days above 98° expected this year, 16 days in 30 years

6/10 Wind Factor

63% chance of strong winds in next 30 years

4/10 Air Factor

4 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Old Westbury, NY • 11568

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 8.7 hours in June and 4.4 hours in December, placing it below the U.S. average for solar exposure.

8.7 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$16.31M – $19.74M

Sell confidently with a local market expert in Old Westbury. 3 minutes to get started.

Nearby similar homes

$4,650,000

5 beds6 baths6,529 sq ft

11 Surrey Ln, Old Westbury, NY 11568

Listing by Douglas Elliman Real Estate

$1,200,000

6 beds4 baths2,550 sq ft

35 3rd Ave, Westbury, NY 11590

Listing by DAC Properties Corp

$999,999

7 beds3 baths2,464 sq ft

346 Sheridan St, Westbury, NY 11590

Listing by DAC Properties Corp

$850,000

4 beds1.5 baths1,371 sq ft

258 Liberty Ave, Westbury, NY 11590

Listing by Compass Greater NY LLC

$3,495,000

4 beds4.5 baths3,302 sq ft

2 Meadow Rd, Old Westbury, NY 11568

Listing by Douglas Elliman Real Estate

$2,990,000

7 beds7.5 baths5,442 sq ft

78 Swan Ct, East Hills, NY 11576

Listing by Lin Pan Realty Group LLC

New listings for sale in 11568

$4,650,000

5 beds6 baths6,529 sq ft

11 Surrey Ln, Old Westbury, NY 11568

Listing by Douglas Elliman Real Estate

$4,185,000

6 beds7.5 baths7,807 sq ft

47 Red Ground Rd, Old Westbury, NY 11568

Listing by Daniel Gale Sothebys Intl Rlty

3D WALKTHROUGH

$7,280,000

6 beds7 baths8,001 sq ft

101 Wheatley Rd, Old Westbury, NY 11568

Listing by Compass Greater NY LLC

Home values near 151 Post Rd

Data from public records.

Address	Redfin Estimate
136 Post Rd, Old Westbury, NY - Beds \| 2.5 Baths \| 2797 Sq. Ft.	$1,881,504
109 Post Rd, Old Westbury, NY - Beds \| 5 Baths \| 7528 Sq. Ft.	$3,401,151

Address	Redfin Estimate
132 Post Rd, Old Westbury, NY 5 Beds \| 8.5 Baths \| - Sq. Ft.	$3,227,382
75 Post Rd, Old Westbury, NY 15 Beds \| 11 Baths \| - Sq. Ft.	$8,283,119

Address	Redfin Estimate
130 Post Rd, Old Westbury, NY - Beds \| 3.5 Baths \| 5852 Sq. Ft.	$2,334,078
75 Post Rd, Old Westbury, NY - Beds \| 13.5 Baths \| 19025 Sq. Ft.	$6,713,038

Property information provided by OneKey® MLS as Distributed by MLS Grid when last listed in 2020. This data may not match . Learn more.

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