New York City  »  10017  »  E 42nd St  »  405 E 42nd St

United Nations Secretariat Building - 405 East 42nd Street, New York, NY 10017 - Property report

Also known as: 46-48 1st Ave

Property image for United Nations Secretariat Building - 405 East 42nd Street, New York, NY 10017
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Property type

United Nations (Z5)

Year built

1952

Lot sq. ft.

659,375

General information

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Address
Building name
United Nations Secretariat Building
Primary address
United Nations Secretariat Building - 405 East 42nd Street
Alternate address(es)
419 E 42nd St
423-431 E 42nd St
46-48 1st Ave
ZIP code
10017
Neighborhood
Turtle Bay
Borough
Manhattan
Block & lot
01354-0001

Owner

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Building
Property type
United Nations (Z5)
Building sq. ft.
2,400,000
Building dimensions
73 ft x 287 ft
Buildings on lot
8
Stories
39
Year built
1952
Last altered
2010
Building material
Fireprof Steel
Tax
Tax year
2026-2027
Tax class
Floor area ratio (FAR)
Commercial FAR
Residential FAR
Buildable area
Zoning & Use
Zoning
Office sq. ft.
Lot
Frontage(s)
Driveway (narrow)
East 46 Street (narrow)
Nearest wide street
1 Avenue
Lot dimensions
120.08 ft x 426.5 ft
Lot sq. ft.
659,375

Area overview

Walk score
98 /100.  Walker's Paradise
Transit score
100 /100.  Rider's Paradise
Bike score
78 /100.  Very Bikeable
School district
2
Community district
6
Closest police station
0.35 Miles
Closest fire station
0.23 Miles

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

Units for United Nations Secretariat Building - 405 East 42nd Street, New York, NY

Unit Sale date Sale price
Unit 12C 05/16/2022
Unit 15D
Unit 20B 12/06/2021
Unit 22CD 05/20/2021
Unit 24A 01/10/2022
Unit 26B 11/14/2019
Unit 26D
Unit 28A 05/28/2026
Unit 3536
Unit 9E 11/30/2020

Ownership information for United Nations Secretariat Building - 405 East 42nd Street, New York, NY

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

Sales history for United Nations Secretariat Building - 405 East 42nd Street, New York, NY 10017

No recently recorded sales for this property.

More about New York City property records.

Title documents

Date Type Amount Party 1 Party 2
08/21/2023 - R UCC3 Termination
(2023081700337001)
XXXXXXXXXX XXXXX X XXXXX XXXXX XXXX X X
10/05/2023 - R
08/03/2023 - D
Deed
(2023090800001001)
XXXX XXXXXX XXXX XX XXX
10/05/2023 - R
08/03/2023 - D
Deed
(2023090701001001)
XXXX XXXXXX XXXX XXX
03/15/2019 - R
02/20/2019 - D
Assignment, Mortgage
(2019030400786001)
XXXX XXXXXX XXXXXXXXXXXXX XXXXX XXX XXXX XXXXX XXXXXX XXXXXXX
11/01/2017 - R UCC3 Termination
(2017102601369001)
XXXXXX XXXX X XXXXXXXX XXXXX XXXX X X
12/02/2016 - R
11/09/2016 - D
Agreement
(2016112200115001)
XXX XXXXXXXXXX XX XXXXXXXXXXXXXX XXXXXX XXXXXXX
08/25/2016 - R
06/09/2016 - D
Agreement
(2016072501173001)
XXX XXXXXXXXXX XX XXXXXXXXXXXXXX XXXXXX XXXXXXX
04/16/2013 - R
03/26/2013 - D
Satisfaction of Mortgage
(2013032600667001)
XXXXXXX XXXX XXXX XX XXXXXXX X X
03/24/2006 - R
02/03/2006 - D
NYC Real Property Transfer Tax
(2006032100218001)
XXX XXXXXX XXX XXXXXXXXX XXX XXXX XXXXXXX X XXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Property taxes for United Nations Secretariat Building - 405 East 42nd Street, New York, NY

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

Current property tax
Tax year
2025-2026
Municipal exemptions
Recent tax assessments
Market value
$761,150,000
Assessed value
$342,517,500

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 Taxable amount Tax rate Base tax Property tax Y-o-Y change
2025/26 $738,981,000 $332,541,450 $0 10.848% $34,033,002 $0 n/a
2024/25 $717,457,000 $322,855,650 $0 10.762% $34,440,312 $0 n/a
2023/24 $696,560,000 $313,452,000 $0 10.592% $33,200,836 $0 n/a
2022/23 $676,272,000 $304,322,400 $0 10.646% $32,398,163 $0 n/a
2021/22 $656,575,000 $295,458,750 $0 10.755% $31,776,589 $0 n/a
2020/21 $808,889,000 $364,000,050 $0 10.694% $36,723,701 $0 n/a
2019/20 $785,329,000 $353,398,050 $0 10.537% $35,130,629 $0 n/a
2018/19 $762,455,000 $343,104,750 $0 10.514% $34,225,259 $0 n/a
2017/18 $740,248,000 $333,111,600 $0 10.514% $33,613,019 $0 n/a
2016/17 $718,687,000 $323,409,150 $0 10.574% $33,400,440 $0 n/a

Permit information for United Nations Secretariat Building - 405 East 42nd Street, New York, NY

Filing date Job type Job status Job description Initial cost
07/05/2016 Alteration type 3
07/22/2015 Alteration type 2
03/04/2015 Alteration type 2
02/12/2013 Alteration type 2
01/04/2013 Alteration type 2

*Most recent permits on record for this property.

More about New York City property records

HPD Violations

No recently recorded violations for this property.

Turtle Bay, East Midtown residential market stats

Access a detailed real estate market overview of Turtle Bay, East Midtown so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Turtle Bay, East Midtown 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

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Risk

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FEMA flood zones

Property location map
FEMA flood zones
X

Hurricane evacuation zones

Property location map
Hurricane evacuation zones
6

Subway & traffic

Closest station
3rd Ave & 42nd St at SW Corner
Station lines
GS-4-5-6-7
Distance (miles)
0.401

Access the detailed traffic volume map for United Nations Secretariat Building - 405 East 42nd Street, New York, NY 10017 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)
River School (The) 8 Yes Public PK, K-5 459 0.49
River School (The) 8 Yes Public PK, K-5 459 0.49
Aaron School NR No Private K-12 169 0.16
Aaron School K - 12 NR No Private K-12 185 0.17
The Family School NR No Private PK, K-6 0 0.20
The Family School NR No Private PK, K-6 0 0.20
Lyceum Kennedy Japanese School NR No Private PK-12 197 0.26
Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Jhs 104 Simon Baruch 8 Yes Public 6-8 891 1.22
Aaron School NR No Private K-12 169 0.16
Aaron School K - 12 NR No Private K-12 185 0.17
Lyceum Kennedy Japanese School NR No Private PK-12 197 0.26
Lyceum Kennedy French American School NR No Private PK, K-12 0 0.26
Saint Albans NR No Private PK, K-8 0 0.31
P.S. 78 8 No Public PK, K-8 725 0.65
Hunters Point Community Middle 6 No Public 6-8 365 0.68
Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Aaron School NR No Private K-12 169 0.16
Aaron School K - 12 NR No Private K-12 185 0.17
Lyceum Kennedy Japanese School NR No Private PK-12 197 0.26
Lyceum Kennedy French American School NR No Private PK, K-12 0 0.26
The Beekman School NR No Private 9-12 71 0.37
Art and Design High School 8 No Public 9-12 1,469 0.62
Academy for Careers In Television and Film 7 No Public 9-12 540 0.68
Murray Hill Academy 5 No Public 9-12 232 0.77
Manhattan Academy For Arts And Languages 4 No Public 9-12 178 0.77
Unity Center For Urban Technologies 8 No Public 9-12 237 0.77

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

Frequently asked questions

What is the year built for United Nations Secretariat Building - 405 East 42nd Street, New York, NY 10017?

The development at United Nations Secretariat Building - 405 East 42nd Street, New York, NY 10017 was built in 1952.

What is the total square footage of United Nations Secretariat Building - 405 East 42nd Street, New York, NY 10017?

United Nations Secretariat Building - 405 East 42nd Street, New York, NY 10017 has a total of 2,400,000 square feet.

What is the assessed value of United Nations Secretariat Building - 405 East 42nd Street, New York, NY 10017?

United Nations Secretariat Building - 405 East 42nd Street, New York, NY 10017 is currently assessed at $342,517,500.

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