Nassau County  »  11590  »  Post Ave  »  320 Post Ave

320 Post Avenue, Westbury, NY 11590 - Property report

Also known as: 320 Post Ave

Property image for 320 Post Avenue, Westbury, NY 11590
static Mapbox map

Property type

Elevator Apartments (411.62)

Year built

1988

Acreage

0.686

Sale price

$4,500,000

General information

Unlock this property report with a free account

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
320 Post Avenue
ZIP code
11590
County
Nassau
Town/City
North Hempstead
Village (SWIS code)
Westbury
Parcel ID
10-L-406

Owner

Find out who owns 320 Post Avenue, Westbury, NY 11590. Uncover corporate and individual owners with a free account.

Building
Property type
Elevator Apartments (411.62)
Building sq. ft.
22,700
Buildings on lot
1
Stories
2
Year built
1988
Sales
Sale date
11/05/2025
Sale price
$4,500,000
Arm's length
Tax
Tax year
2026
Current property tax
$112,245
Tax class
Zoning & Use
Zoning
Capitalization rate
Area type
Apartment/Condo complex
Lot
Acreage
0.686
Topography
Level
Land
Primary site

Area overview

Walk score
80 /100.  Very Walkable
Transit score
0 /100.  Minimal Transit
Bike score
50 /100.  Bikeable
School district
2001
Street
Paved
Traffic
Medium

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

Commercial Buildings

Sq. ft. Structure Grade Year built Stories
22,700 Apartments - garden B- 1988 2
Floor distribution
Floors Sq. ft. Use Construction Condition Exterior wall Heating Air conditioning Plumbing
B1-B1 2,570 Support area
B1-B1 1,040 Multi-use office Central
01-01 240 Offices 5,501 - 9,999 sf Central
01-01 7,060 Offices 5,501 - 9,999 sf Central
01-01 240 Offices 5,501 - 9,999 sf Central
02-03 14,120 Apartment Central
Ownership

Ownership information for 320 Post Avenue, Westbury, NY

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

Sales history for 320 Post Avenue, Westbury, NY 11590

Sale date Sale price Buyer name Seller name
11/05/2025 $4,500,000 XXX XXXX XXX XXX; XXXX XXXXXX XXX; XXXX XXXXXXXX XXX; X XXXXXXXX XXX XXXXXXX XXXX XX XXXXXXXX XXX X/X XXXX & XXXXXX, XXX
11/19/2001 $2,381,228 XXXXXXX XXXX XX XXXXXXXX XXXXXXX XXXX, XXX
07/13/1998 $1,700,000 XXXXXXX XXXX XXX XXXXXXX XXXX XXXXXXXXXX X

*Most recent sales on record for this property.

More about Nassau County property records.

Title documents

Date Type Amount Party 1 Party 2
11/10/2025 - R Other
(Mortgage agreement)		 XXX XXXX XXX XXX XXX XXXXXXXXX XXXX
11/10/2025 - R
11/05/2025 - D		 Deed
(Deed commercial/vacant land)		 XXXXXXX XXXX XX XXXXXXXX XXX XXX XXXX XXX XXX
11/10/2025 - R
11/05/2025 - D		 Mortgage
(Mtg-mortgage)		 XXX XXXX XXX XXX XXX XXXXXXXXX XXXX
12/11/2001 - R
11/19/2001 - D		 Deed XXXXXXX XXXX, XXX XXXXXXX XXXX XX XXXXXXXX
07/23/1998 - R
07/13/1998 - D		 Deed XXXXXXX XXXX XXXXXXXXXX X XXXXXXX XXXX XXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 320 Post Avenue, Westbury, 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
$112,245
Tax class
Base tax
$126,725
Recent tax assessments
Market value
$2,594,000
Assessed value
$25,940
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 $2,594,000 $25,940 488.533 $126,725 +19.99%
2025 $2,223,500 $22,235 474.987 $105,613 -8.30%
2024 $2,594,000 $24,373 478.287 $115,172 -0.15%
2023 $2,594,000 $25,940 518.055 $115,340 -23.22%
2022 $2,594,000 $25,940 579.082 $150,214 -28.51%
2021 $3,313,400 $33,134 634.166 $210,125 +68.11%
2020 $1,686,100 $16,861 741.325 $124,995 -7.15%
2019 $1,960,000 $19,600 686.854 $134,623 -1.24%
2018 $1,960,000 $19,600 695.469 $136,312 +6.44%
2017 $1,960,000 $19,600 653.382 $128,063 -16.10%
Permits

Permit information for 320 Post Avenue, Westbury, NY

No recently recorded permits for this property.

Neighborhood

Demographics by ZIP code

Total population
47,599
Median age
42.3
Average household income
$189,375
Family households
71.9%
People per household (average)
3.09
Occupied housing units
15,255
Owner-occupied units
76.7%
Median year structure built
1956
Median value mortgaged units
$630,300
Median value unmortgaged units
$637,600

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones
X

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 320 Post Avenue, Westbury, NY 11590 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Neighbors for 320 Post Avenue, Westbury, NY

559 Livingston St, Westbury 306 Post Ave, Westbury 324 Post Ave, Westbury 385 Cross St, Westbury 360 Post Ave, Westbury 547 Livingston St, Westbury 346 Post Ave, Westbury 357 Linden Pl, Westbury 543 Livingston St, Westbury 501 Livingston St, Westbury 421 Powells Ln, Westbury 379 Cross St, Westbury 351 Cross St, Westbury 369 Cross St, Westbury 309 Linden Pl, Westbury 347 Cross St, Westbury 359 Cross St, Westbury 551 Livingston St, Westbury 505 Livingston St, Westbury 303 Linden Pl, Westbury

Nearby ZIP codes for 320 Post Avenue, Westbury, NY

11501, Nassau County, NY 11507, Nassau County, NY 11514, Nassau County, NY 11530, Nassau County, NY 11545, Nassau County, NY 11548, Nassau County, NY 11549, Nassau County, NY 11550, Nassau County, NY 11552, Nassau County, NY 11554, Nassau County, NY 11556, Nassau County, NY 11568, Nassau County, NY 11575, Nassau County, NY 11576, Nassau County, NY 11577, Nassau County, NY 11596, Nassau County, NY 11753, Nassau County, NY 11756, Nassau County, NY 11801, Nassau County, NY

Frequently asked questions

What is the year built for 320 Post Avenue, Westbury, NY 11590?

The development at 320 Post Avenue, Westbury, NY 11590 was built in 1988.

What is the total square footage of 320 Post Avenue, Westbury, NY 11590?

320 Post Avenue, Westbury, NY 11590 has a total of 22,700 square feet.

When was 320 Post Avenue, Westbury, NY 11590 last sold and what was the sale price?

320 Post Avenue, Westbury, NY 11590 was last sold on 11/05/2025 for $4,500,000.

What is the assessed value of 320 Post Avenue, Westbury, NY 11590?

320 Post Avenue, Westbury, NY 11590 is currently assessed at $25,940.

What are the property taxes for 320 Post Avenue, Westbury, NY 11590?

The property taxes for 320 Post Avenue, Westbury, NY 11590 total $126,725.

How many residential units does this building have?

This building has 20 residential unit(s).

Disclaimer

Copyright 2003-2026 by PropertyShark.com

All data comes from government sources. No attempt has been made to validate it. No attempt has been made to validate the accuracy of the programming of this website.

Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.

Sign up for a free account