455 East 51st Street
Multifamily Housing in New York City, NY · 10022
At a glance
455 East 51st Street is a 55,115-square-foot multifamily housing building in New York City, New York, built in 1930. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 68 out of 100 (grade C), a site energy-use intensity of 71.2 kBtu/ft² and 321 tCO₂e of greenhouse-gas emissions. That score is higher than 49% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 68 (band C) |
| Site EUI | 71.2 kBtu/ft² |
| Source EUI | 100.5 kBtu/ft² |
| GHG emissions | 321 tCO₂e |
| GHG intensity | 5.8 kgCO₂e/ft² |
| Electricity | 256,966 kWh |
| Natural gas | 548 therms |
| Water use | 1,338 kgal |
| Gross floor area | 55,115 sq ft |
| Source record | nyc:2386565:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 68 | -9 | 71.2 kBtu/ft² | 321 tCO₂e |
| 2022 | 77 | 69.6 kBtu/ft² | 293 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
- 455 East 51st Street
- City
- New York City
- State
- New York
- ZIP
- 10022
- Coordinates
- 40.75389, -73.96421
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 455 East 51st Street compare with other multifamily housing buildings in New York City?
The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. 455 East 51st Street's ENERGY STAR score of 68 compares with an average of 63 across the 22,829 that report a score; it scores higher than 49% of them and lower than 50%. Its site EUI of 71.2 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 5.8 kgCO₂e/ft² is about 12% above the group average of 5.2 kgCO₂e/ft².
At 55,115 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1930, 22 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 455 East 51st Street's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 455 East 51st Street, covering report years 2022–2023. Its ENERGY STAR score went from 77 in 2022 to 68 in 2023 (-9 points); its best year on file was 2022, at 77. Site EUI moved from 69.6 kBtu/ft² (2022) to 71.2 kBtu/ft² (2023), an 2% increase. Reported emissions went from 293 tCO₂e to 321 tCO₂e over the same span (up 10%).
What does an ENERGY STAR score of 68 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 68 means the building performs better than about 68% of its national peers. BuildingCensus bands the score into report-card grades; 68 falls in band C — below median (55–69). It sits 7 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. 455 East 51st Street's 71.2 kBtu/ft² across 55,115 sq ft works out to about 3.9 billion Btu (1,150 MWh-equivalent) in 2023. Its source EUI of 100.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 256,966 kWh of electricity, 548 therms of natural gas and 1,338 thousand gallons of water for the year.
Which law requires 455 East 51st Street to report its energy use?
455 East 51st Street 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:2386565:2023). 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 multifamily housing buildings in New York City
- 414-422 West 119th Street· 55,109 sq ft · score 100 (A)
- VP: 1110 Anderson Ave· 55,105 sq ft · score 71 (B)
- Pashtrik Realty Corp: 2703-2709 Webb Ave· 55,105 sq ft · score 71 (B)
- Pashtrik: 2703 Webb Ave· 55,105 sq ft · score 66 (C)
- Samson - 160 Front St· 55,104 sq ft · score 56 (C)
- 15 East 16th Street· 55,095 sq ft · EUI 23.3 kBtu/ft²
- Multifamily Housing buildings in New York City· 33,022 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 455 East 51st Street's energy grade?
455 East 51st Street scores 68 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 455 East 51st Street use?
Its 2023 site energy-use intensity was 71.2 kBtu/ft² (100.5 kBtu/ft² source) across 55,115 sq ft, including 256,966 kWh of electricity and 548 therms of natural gas.
What are 455 East 51st Street's carbon emissions?
455 East 51st Street reported 321 tCO₂e of greenhouse-gas emissions (5.8 kgCO₂e/ft²) for 2023.
Where is 455 East 51st Street?
455 East 51st Street is in New York City, New York 10022. Its coordinates are 40.75389, -73.96421 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 455 East 51st Street and when was it built?
455 East 51st Street has 55,115 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1930 as its year built. It is classed as multifamily housing.
Is 455 East 51st Street 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, “455 East 51st Street, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/455-east-51st-street-280d4f43 (data as of October 2, 2026).