2 United Nations Plaza
Office in New York City, NY · 10017
At a glance
2 United Nations Plaza is a 565,000-square-foot office building in New York City, New York, built in 1983. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 70 out of 100 (grade B), a site energy-use intensity of 86.0 kBtu/ft² and 4,337 tCO₂e of greenhouse-gas emissions. That score is higher than 35% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 70 (band B) |
| Site EUI | 86.0 kBtu/ft² |
| Source EUI | 168.0 kBtu/ft² |
| GHG emissions | 4,337 tCO₂e |
| GHG intensity | 7.7 kgCO₂e/ft² |
| Electricity | 6,697,682 kWh |
| Water use | 20,113 kgal |
| Gross floor area | 565,000 sq ft |
| Source record | nyc:1582252:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 70 | ±0 | 86.0 kBtu/ft² | 4,337 tCO₂e |
| 2023 | 70 | -2 | 85.8 kBtu/ft² | 4,186 tCO₂e |
| 2022 | 72 | 85.1 kBtu/ft² | 3,599 tCO₂e |
Compliance context
Local Law 84 (LL84)
Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 2 United Nations Plaza
- City
- New York City
- State
- New York
- ZIP
- 10017
- Coordinates
- 40.75063, -73.97011
Within ~1 km
Nearby benchmarked buildings
- Metlife Building (200 Park)score 69
Office · 2,993,388 sq ft
- 277 Park Avenuescore 64
Office · 1,897,643 sq ft
- 345 Park Ave LPscore 47
Office · 1,783,232 sq ft
- 277 Park Avenuescore 55
Office · 1,745,856 sq ft
- Waldorf Astoria Hotelscore 97
Hotel · 1,666,763 sq ft
Office · 1,589,903 sq ft
See also: most efficient in New York City · biggest emitters
How does 2 United Nations Plaza compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. 2 United Nations Plaza's ENERGY STAR score of 70 compares with an average of 72 across the 2,519 that report a score; it scores higher than 35% of them and lower than 64%. Its site EUI of 86.0 kBtu/ft² is about 33% above the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 7.7 kgCO₂e/ft² is about 32% above the group average of 5.8 kgCO₂e/ft².
At 565,000 sq ft, it is about 175% above the average floor area of 205,440 sq ft for those buildings. It was built in 1983, 43 years later than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 2 United Nations Plaza's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 2 United Nations Plaza, covering report years 2022–2024. Its ENERGY STAR score went from 72 in 2022 to 70 in 2024 (-2 points); its best year on file was 2022, at 72. Site EUI moved from 85.1 kBtu/ft² (2022) to 86.0 kBtu/ft² (2024), an 1% increase. Reported emissions went from 3,599 tCO₂e to 4,337 tCO₂e over the same span (up 21%).
What does an ENERGY STAR score of 70 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 70 means the building performs better than about 70% of its national peers. BuildingCensus bands the score into report-card grades; 70 falls in band B — above median (70–84). It sits 5 points below 75, the threshold for ENERGY STAR certification. In New York City, 43% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. 2 United Nations Plaza's 86.0 kBtu/ft² across 565,000 sq ft works out to about 48.6 billion Btu (14,240 MWh-equivalent) in 2024. Its source EUI of 168.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 6,697,682 kWh of electricity and 20,113 thousand gallons of water for the year.
Which law requires 2 United Nations Plaza to report its energy use?
2 United Nations Plaza reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:1582252:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
More office buildings in New York City
- 177 Dreiser Loop· 564,653 sq ft
- PLAZA WEST ASSOCIATES, LLC· 564,363 sq ft · score 84 (B)
- 1 Fordham Plaza· 563,549 sq ft · score 68 (C)
- One Fordham Plaza LLC· 563,549 sq ft · score 88 (A)
- 650 Madison Avenue-main· 562,890 sq ft · score 75 (B)
- 1740 Broadway· 562,483 sq ft · score 79 (B)
- Office buildings in New York City· 3,384 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is 2 United Nations Plaza's energy grade?
2 United Nations Plaza scores 70 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 2 United Nations Plaza use?
Its 2024 site energy-use intensity was 86.0 kBtu/ft² (168.0 kBtu/ft² source) across 565,000 sq ft, including 6,697,682 kWh of electricity.
What are 2 United Nations Plaza's carbon emissions?
2 United Nations Plaza reported 4,337 tCO₂e of greenhouse-gas emissions (7.7 kgCO₂e/ft²) for 2024.
Where is 2 United Nations Plaza?
2 United Nations Plaza is in New York City, New York 10017. Its coordinates are 40.75063, -73.97011 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 2 United Nations Plaza and when was it built?
2 United Nations Plaza has 565,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1983 as its year built. It is classed as office.
Is 2 United Nations Plaza covered by Local Law 84 (LL84)?
Yes — it appears in the 2024 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
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About this data
Source: Energy and Water Data Disclosure (Local Law 84 (LL84)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “2 United Nations Plaza, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/2-united-nations-plaza-e09c7f19 (data as of October 2, 2026).