AKAM - 255 East 49th Street
Multifamily Housing in New York City, NY · 923 2nd Avenue · 10017
At a glance
AKAM - 255 East 49th Street is a 181,069-square-foot multifamily housing building at 923 2nd Avenue in New York City, New York, built in 1985. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 74.8 kBtu/ft² and 1,176 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 74.8 kBtu/ft² |
| Source EUI | 119.9 kBtu/ft² |
| GHG emissions | 1,176 tCO₂e |
| GHG intensity | 6.5 kgCO₂e/ft² |
| Electricity | 1,310,735 kWh |
| Natural gas | 5,912 therms |
| Water use | 9,696 kgal |
| Gross floor area | 181,069 sq ft |
| Source record | nyc:5864829:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 74.8 kBtu/ft² | 1,176 tCO₂e | |
| 2023 | — | 79.4 kBtu/ft² | 1,204 tCO₂e | |
| 2022 | 45 | 91.9 kBtu/ft² | 1,268 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
- 923 2nd Avenue
- City
- New York City
- State
- New York
- ZIP
- 10017
- Coordinates
- 40.75447, -73.96883
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does AKAM - 255 East 49th 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. Its site EUI of 74.8 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 6.5 kgCO₂e/ft² is about 25% above the group average of 5.2 kgCO₂e/ft².
At 181,069 sq ft, it is about 79% above the average floor area of 100,951 sq ft for those buildings. It was built in 1985, 33 years later 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 AKAM - 255 East 49th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for AKAM - 255 East 49th Street, covering report years 2022–2024. Site EUI moved from 91.9 kBtu/ft² (2022) to 74.8 kBtu/ft² (2024), a 19% decrease. Reported emissions went from 1,268 tCO₂e to 1,176 tCO₂e over the same span (down 7%).
What does a site EUI of 74.8 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. AKAM - 255 East 49th Street's 74.8 kBtu/ft² across 181,069 sq ft works out to about 13.5 billion Btu (3,969 MWh-equivalent) in 2024. Its source EUI of 119.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,310,735 kWh of electricity, 5,912 therms of natural gas and 9,696 thousand gallons of water for the year.
Which law requires AKAM - 255 East 49th Street to report its energy use?
AKAM - 255 East 49th 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 2024 disclosure (source record nyc:5864829:2024). 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
- Chartwell House Condominium (1760 Second Avenue)· 180,995 sq ft · score 2 (D)
- 255 West 88 Street· 180,983 sq ft · score 62 (C)
- PanAm: 2 Water St.· 180,933 sq ft · score 24 (D)
- 2885 Marion Avenue· 180,920 sq ft · score 95 (A)
- 60 Broadway -data· 180,853 sq ft · score 62 (C)
- Samson - 144-67 41st Ave· 180,842 sq ft · score 100 (A)
- 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 AKAM - 255 East 49th Street's energy grade?
AKAM - 255 East 49th Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 74.8 kBtu/ft².
How much energy does AKAM - 255 East 49th Street use?
Its 2024 site energy-use intensity was 74.8 kBtu/ft² (119.9 kBtu/ft² source) across 181,069 sq ft, including 1,310,735 kWh of electricity and 5,912 therms of natural gas.
What are AKAM - 255 East 49th Street's carbon emissions?
AKAM - 255 East 49th Street reported 1,176 tCO₂e of greenhouse-gas emissions (6.5 kgCO₂e/ft²) for 2024.
Where is AKAM - 255 East 49th Street?
AKAM - 255 East 49th Street is at 923 2nd Avenue, in New York City, New York 10017. Its coordinates are 40.75447, -73.96883 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is AKAM - 255 East 49th Street and when was it built?
AKAM - 255 East 49th Street has 181,069 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1985 as its year built. It is classed as multifamily housing.
Is AKAM - 255 East 49th Street 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, “AKAM - 255 East 49th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/akam-255-east-49th-street-7ad585c9 (data as of October 2, 2026).