777 United Nations Plaza
Office in New York City, NY · 10017
At a glance
777 United Nations Plaza is a 67,177-square-foot office building in New York City, New York, built in 1963. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 50 out of 100 (grade D), a site energy-use intensity of 110.3 kBtu/ft² and 561 tCO₂e of greenhouse-gas emissions. That score is higher than 16% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 50 (band D) |
| Site EUI | 110.3 kBtu/ft² |
| Source EUI | 171.1 kBtu/ft² |
| GHG emissions | 561 tCO₂e |
| GHG intensity | 8.3 kgCO₂e/ft² |
| Electricity | 473,306 kWh |
| Water use | 2,621 kgal |
| Gross floor area | 67,177 sq ft |
| Source record | nyc:10174588:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 50 | -5 | 110.3 kBtu/ft² | 561 tCO₂e |
| 2022 | 55 | 126.8 kBtu/ft² | 598 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
- 777 United Nations Plaza
- City
- New York City
- State
- New York
- ZIP
- 10017
- Coordinates
- 40.74990, -73.96907
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 777 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. 777 United Nations Plaza's ENERGY STAR score of 50 compares with an average of 72 across the 2,519 that report a score; it scores higher than 16% of them and lower than 83%. Its site EUI of 110.3 kBtu/ft² is about 71% 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 8.3 kgCO₂e/ft² is about 43% above the group average of 5.8 kgCO₂e/ft².
At 67,177 sq ft, it is about 67% below the average floor area of 205,440 sq ft for those buildings. It was built in 1963, 23 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 777 United Nations Plaza's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 777 United Nations Plaza, covering report years 2022–2023. Its ENERGY STAR score went from 55 in 2022 to 50 in 2023 (-5 points); its best year on file was 2022, at 55. Site EUI moved from 126.8 kBtu/ft² (2022) to 110.3 kBtu/ft² (2023), a 13% decrease. Reported emissions went from 598 tCO₂e to 561 tCO₂e over the same span (down 6%).
What does an ENERGY STAR score of 50 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 50 means the building performs better than about 50% of its national peers. BuildingCensus bands the score into report-card grades; 50 falls in band D — lowest band (1–54). It sits 25 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. 777 United Nations Plaza's 110.3 kBtu/ft² across 67,177 sq ft works out to about 7.4 billion Btu (2,172 MWh-equivalent) in 2023. Its source EUI of 171.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 473,306 kWh of electricity and 2,621 thousand gallons of water for the year.
Which law requires 777 United Nations Plaza to report its energy use?
777 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 2023 disclosure (source record nyc:10174588:2023). 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
- BPC: 142 Joralemon Street· 67,080 sq ft · score 67 (C)
- 7 West 36th Street· 67,063 sq ft · score 48 (D)
- Brooklyn Home : 119 INGRAHAM STREET· 67,000 sq ft · score 98 (A)
- 670 Broadway Owner LP· 66,905 sq ft · score 2 (D)
- 350 Neptune Avenue· 66,869 sq ft · score 81 (B)
- Maxim Realty - 10-40 45th Ave· 66,800 sq ft · score 33 (D)
- 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 777 United Nations Plaza's energy grade?
777 United Nations Plaza scores 50 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 777 United Nations Plaza use?
Its 2023 site energy-use intensity was 110.3 kBtu/ft² (171.1 kBtu/ft² source) across 67,177 sq ft, including 473,306 kWh of electricity.
What are 777 United Nations Plaza's carbon emissions?
777 United Nations Plaza reported 561 tCO₂e of greenhouse-gas emissions (8.3 kgCO₂e/ft²) for 2023.
Where is 777 United Nations Plaza?
777 United Nations Plaza is in New York City, New York 10017. Its coordinates are 40.74990, -73.96907 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 777 United Nations Plaza and when was it built?
777 United Nations Plaza has 67,177 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1963 as its year built. It is classed as office.
Is 777 United Nations Plaza covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “777 United Nations Plaza, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/777-united-nations-plaza-2c998c7d (data as of October 2, 2026).