New York City  »  10021  »  5th Ave  »  923 5th Ave

923 5th Avenue, New York, NY 10021 - Property report

Also known as: 923 5th Ave

Property image for 923 5th Avenue, New York, NY 10021
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Property type

Special Condominium Billing Lot (R0)

Year built

1950

Lot sq. ft.

14,800

General information

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Due to this address' parcel subdivisions, this property report may contain limited information. For the full range of property data, view the property report of each individual parcel.

Address
Primary address
923 5th Avenue
Alternate address(es)
1 E 73rd St
ZIP code
10021
Neighborhood
Lenox Hill
Borough
Manhattan
Block & lot
01388-7501

Owner

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Building
Property type
Special Condominium Billing Lot (R0)
Building sq. ft.
172,006
Buildings on lot
1
Stories
20
Year built
1950
Basement
N
Tax
Tax year
2026-2027
Tax class
Floor area ratio (FAR)
Commercial FAR
Residential FAR
Buildable area
Zoning & Use
Zoning
Qualified opportunity zone
Residential units
96
Residential sq. ft.
Commercial units
5
Office sq. ft.
Retail sq. ft.
Lot
Frontage(s)
5 Avenue (wide)
East 73 Street (wide)
Distance to wide street
Lot dimensions
97 ft x 150 ft
Lot sq. ft.
14,800

Area overview

Walk score
94 /100.  Walker's Paradise
Transit score
100 /100.  Rider's Paradise
Bike score
75 /100.  Very Bikeable
School district
2
Community district
8
Closest police station
0.40 Miles
Closest fire station
0.39 Miles

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

Units for 923 5th Avenue, New York, NY

Unit Sale date Sale price Sq. ft. Price/Sq. ft.
Unit 1/2D 02/08/1991 1,497
Unit 10A 08/21/2002 2,845
Unit 10C 03/27/2009 1,530
Unit 10E 06/24/2026 1,060
Unit 10F 10/15/2025 1,154
Unit 10G 12/20/2004 1,045
Unit 11A 09/13/1983 1,745
Unit 11B 04/09/2018 1,100
Unit 11C 06/20/2011 1,386
Unit 11D 02/27/2007 1,368
Unit 11E 04/30/2026 1,060
Unit 11F 11/22/2000 1,154
Unit 11G 01/30/2025 1,045
Unit 12A 06/16/1987 1,745
Unit 12B 04/30/2002 1,100
Unit 12C 09/13/1983 1,530
Unit 12E 04/30/2026 1,351
Unit 12F 06/12/1998 1,076
Unit 14A 07/09/2020 1,745
Unit 14B 09/04/1996 1,100
Unit 14C 05/07/2004 1,530
Unit 14D 06/27/2019 1,894
Unit 15-A 03/31/2004 1,745
Unit 15B 11/20/2025 1,100
Unit 15C 05/23/2023 1,530
Unit 15D 05/31/2023 1,894
Unit 16A 09/13/2011 1,756
Unit 16B 04/28/2008 1,016
Unit 16C 12/19/1996 1,530
Unit 16D 11/03/2003 1,894
Unit 17A 05/29/2008 1,661
Unit 17B 03/05/2015 962
Unit 17C 01/27/2012 1,490
Unit 17D 01/27/2012 1,894
Unit 18A 04/01/2014 3,026
Unit 18B 02/10/1993 1,866
Unit 19A 09/16/2019 2,145
Unit 19B 09/16/2019 1,827
Unit 1A 02/24/2021 1,074
Unit 1B 10/25/1984 759
Unit 1C 03/27/2018 1,732
Unit 20A 10/03/2023 2,145
Unit 20B 05/11/2017 1,827
Unit 2A 03/04/2022 1,570
Unit 2B 08/25/2023 1,796
Unit 2C 06/03/2011 1,467
Unit 2E 07/16/2025 1,060
Unit 2F 12/06/2011 1,285
Unit 2G 02/06/1991 1,045
Unit 3&4D 04/04/2006 1,368
Unit 3A 02/23/2023 1,745
Unit 3B 04/25/2024 1,100
Unit 3C 08/24/2018 1,386
Unit 3E 11/22/2013 1,060
Unit 3F 11/22/2013 1,285
Unit 4A 03/23/2022 1,745
Unit 4B 12/07/2018 1,100
Unit 4C 06/17/2010 1,530
Unit 4E 12/19/2024 1,060
Unit 4F 12/29/1992 1,285
Unit 5&6D 01/08/1990 1,386
Unit 5A 09/13/1999 1,745
Unit 5B 01/06/2021 1,100
Unit 5C 02/27/1997 1,386
Unit 5E 09/04/2015 1,060
Unit 5F 10/04/2024 1,285
Unit 5G 1,045
Unit 6A 01/09/1985 1,745
Unit 6B 06/21/2016 1,100
Unit 6C 11/30/2022 1,530
Unit 6E 09/09/1999 1,060
Unit 6F 12/14/2015 1,285
Unit 6G 11/07/1988 1,045
Unit 7-C 01/21/2022 1,386
Unit 7/8D 07/12/2022 1,368
Unit 7A 11/09/2004 1,745
Unit 7B 04/08/1993 1,100
Unit 7E 11/01/2011 1,060
Unit 7F 08/25/2025 1,285
Unit 7G 01/13/2012 1,045
Unit 8A 12/16/1999 1,745
Unit 8B 09/08/1999 1,100
Unit 8C 03/02/2026 1,530
Unit 8E 12/20/2004 1,060
Unit 8F 05/24/2017 1,285
Unit 8G 10/30/2019 1,045
Unit 9/10D 12/20/2004 1,368
Unit 9A 10/24/2022 1,745
Unit 9B 10/24/2022 1,100
Unit 9C 07/09/2024 1,386
Unit 9E 05/05/2003 1,060
Unit 9F 05/05/2003 1,285
Unit 9G 10/20/2020 1,045
Unit GR 06/12/1986 13,898
Unit PHA 06/02/2016 2,704
Unit R1 05/13/1988
Unit R2 05/13/1988
Unit R3 12/06/2011
Unit R4 04/01/2011
Unit R5 06/27/2019
Unit R6 11/01/2011

Building Description

923 5 Avenue offers one of the rare chances to live on Museum Mile, on the doorstep of Central Park and overlooking the iconic boat pond. The 21-story apartment building claimed its prime location in 1950, replacing five grand Gilded Age mansions that included the revered Randolph Guggenheimer house and its famous marble goddesses. Sylvan Bien drew up the plans for the modern mid-century residential tower with a limestone base and handsome white brick, with a variety of balconies and terraces thrusting towards the park. Dorothy Draper designed the public spaces using 18th century antiques.

The 92 apartments at 923 5 Avenue were converted to condominiums in 1982. Amenities in the revamped building include a fitness center, laundry facilities, full-service garage, and additional storage. The showcase step-down lobby is attended full time by a doorman. Cats and dogs are allowed, and the building also has a subletting-friendly policy. Subway service is available within one-half mile at four stations.

Ownership

Ownership information for 923 5th Avenue, New York, NY

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

Sales history for 923 5th Avenue, New York, NY 10021

No recently recorded sales for this property.

More about New York City property records.

Title documents

No recently recorded documents for this property.

Tax

Property taxes for 923 5th Avenue, New York, NY

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

This is a condominium building, so there are no property taxes. In a condominium the property taxes are paid by the individual unit owners. If you want to see the property taxes for a particular unit, look at the property report for that unit.

More about New York City property taxes

Permits

Permit information for 923 5th Avenue, New York, NY

Filing date Job type Job status Job description Initial cost
07/10/2026 Alteration
06/18/2026 Alteration
03/25/2026 Alteration
01/23/2026 Alteration
12/29/2025 Alteration

*Most recent permits on record for this property.

More about New York City property records

Violations

HPD Violations

Violation ID Inspection date Class NOV issue date Status
06/04/2025 A
11/22/2024 I
04/01/2021 A

*Most recent HPD violations on record for this property.

Neighborhood

Upper East Side, Carnegie Hill residential market stats

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

Median sale price

—

Median price/sq. ft.

—

Manhattan median sale price

$1,260,000

5.4% Y-o-Y

Check out recently sold homes in Manhattan and see how their prices compare.

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

Property location map
FEMA flood zones
X

Hurricane evacuation zones

Property location map
Hurricane evacuation zones
-

Subway & traffic

Closest station
Lexington Ave & 77th St at SW Corner
Station lines
6
Distance (miles)
0.311
View subway map

Access the detailed traffic volume map for 923 5th Avenue, New York, NY 10021 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity. View daily traffic map

Schools

Nearest elementary schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
P.S. 6 Lillie D Blake 9 Yes Public PK, K-5 587 0.42
P.S. 6 Lillie D Blake 9 Yes Public PK, K-5 587 0.42
The Hewitt School NR No Private K-12 522 0.16
Buckley School NR No Private K-9 374 0.22
Rudolf Steiner School NR No Private PK-12 299 0.31
Rudolf Steiner School NR No Private PK-12 299 0.31
Rudolf Steiner School NR No Private PK, K-12 0 0.31
Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Jhs 167 Robert F Wagner 8 Yes Public 6-8 1,019 0.43
The Hewitt School NR No Private K-12 522 0.16
Buckley School NR No Private K-9 374 0.22
Rudolf Steiner School NR No Private PK-12 299 0.31
Rudolf Steiner School NR No Private PK, K-12 0 0.31
The Allen-Stevenson School NR No Private K-8 421 0.33
Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
The Hewitt School NR No Private K-12 522 0.16
Ramaz School NR No Private 9-12 384 0.25
Ramaz School NR No Private 9-12 0 0.27
Rudolf Steiner School NR No Private PK-12 299 0.31
Rudolf Steiner School NR No Private PK, K-12 0 0.31

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

Neighbors for 923 5th Avenue, New York, NY

927 Madison Ave, New York 46 E 74th St, New York 59 E 73rd St, New York 925 5th Ave, New York 930 5th Ave, New York 5 E 74th St, New York 17 E 74th St, New York 931 Madison Ave, New York 924 Madison Ave, New York 9 E 74th St, New York 11 E 74th St, New York 39 E 74th St, New York 19 E 73rd St, New York 940 Madison Ave, New York 12 E 74th St, New York 7 E 74th St, New York 926 5th Ave, New York 19 E 74th St, New York 29 E 73rd St, New York

Nearby ZIP codes for 923 5th Avenue, New York, NY

10017, New York City, NY 10022, New York City, NY 10028, New York City, NY 10044, New York City, NY 10065, New York City, NY 10075, New York City, NY 10103, New York City, NY 10128, New York City, NY 10152, New York City, NY 10154, New York City, NY 10162, New York City, NY 10167, New York City, NY 10169, New York City, NY 10170, New York City, NY 10171, New York City, NY 10172, New York City, NY 10177, New York City, NY 11109, New York City, NY

Frequently asked questions

What is the year built for 923 5th Avenue, New York, NY 10021?

The development at 923 5th Avenue, New York, NY 10021 was built in 1950.

What is the total square footage of 923 5th Avenue, New York, NY 10021?

923 5th Avenue, New York, NY 10021 has a total of 172,006 square feet.

How many residential units does this building have?

This building has 96 residential unit(s).

Disclaimer

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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.

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