55 East 66th Street Corp.
Multifamily Housing in New York City, NY · 53 East 66th Street · 10065
At a glance
55 East 66th Street Corp. is a 82,142-square-foot multifamily housing building at 53 East 66th Street in New York City, New York, built in 1924. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 76.8 kBtu/ft² and 526 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 76.8 kBtu/ft² |
| Source EUI | 108.8 kBtu/ft² |
| GHG emissions | 526 tCO₂e |
| GHG intensity | 6.4 kgCO₂e/ft² |
| Electricity | 418,898 kWh |
| Natural gas | 494 therms |
| Water use | 1,714 kgal |
| Gross floor area | 82,142 sq ft |
| Source record | nyc:3127071:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 76.8 kBtu/ft² | 526 tCO₂e | |
| 2023 | 86 | +5 | 59.4 kBtu/ft² | 448 tCO₂e |
| 2022 | 81 | 69.8 kBtu/ft² | 485 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
- 53 East 66th Street
- City
- New York City
- State
- New York
- ZIP
- 10065
- Coordinates
- 40.76775, -73.96767
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 55 East 66th Street Corp. 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. Its site EUI of 76.8 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 6.4 kgCO₂e/ft² is about 23% above the group average of 5.2 kgCO₂e/ft².
At 82,142 sq ft, it is about 19% below the average floor area of 100,951 sq ft for those buildings. It was built in 1924, 28 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 55 East 66th Street Corp.'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 55 East 66th Street Corp., covering report years 2022–2024. Its ENERGY STAR score went from 81 in 2022 to 86 in 2023 (+5 points). Site EUI moved from 69.8 kBtu/ft² (2022) to 76.8 kBtu/ft² (2024), an 10% increase. Reported emissions went from 485 tCO₂e to 526 tCO₂e over the same span (up 8%).
What does a site EUI of 76.8 kBtu/ft² mean?
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. 55 East 66th Street Corp.'s 76.8 kBtu/ft² across 82,142 sq ft works out to about 6.3 billion Btu (1,849 MWh-equivalent) in 2024. Its source EUI of 108.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 418,898 kWh of electricity, 494 therms of natural gas and 1,714 thousand gallons of water for the year.
Which law requires 55 East 66th Street Corp. to report its energy use?
55 East 66th Street Corp. 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:3127071:2024). 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 multifamily housing buildings in New York City
- 41-41 41 Street· 82,130 sq ft · score 89 (A)
- 41-42 42nd Street - 32058· 82,130 sq ft · score 92 (A)
- Camber - 11 West 118th St· 82,112 sq ft · score 99 (A)
- Chaya Holdings LLC /2001· 82,110 sq ft · score 86 (A)
- 2305 Linden Boulevard· 82,096 sq ft · score 28 (D)
- 2305 Linden Boulevard (Parent Property)· 82,096 sq ft · score 34 (D)
- 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 55 East 66th Street Corp.'s energy grade?
55 East 66th Street Corp. did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 76.8 kBtu/ft².
How much energy does 55 East 66th Street Corp. use?
Its 2024 site energy-use intensity was 76.8 kBtu/ft² (108.8 kBtu/ft² source) across 82,142 sq ft, including 418,898 kWh of electricity and 494 therms of natural gas.
What are 55 East 66th Street Corp.'s carbon emissions?
55 East 66th Street Corp. reported 526 tCO₂e of greenhouse-gas emissions (6.4 kgCO₂e/ft²) for 2024.
Where is 55 East 66th Street Corp.?
55 East 66th Street Corp. is at 53 East 66th Street, in New York City, New York 10065. Its coordinates are 40.76775, -73.96767 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 55 East 66th Street Corp. and when was it built?
55 East 66th Street Corp. has 82,142 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1924 as its year built. It is classed as multifamily housing.
Is 55 East 66th Street Corp. 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, “55 East 66th Street Corp., New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/55-east-66th-street-corp-d69feff1 (data as of October 2, 2026).