AKAM - 685 West End Avenue
Multifamily Housing in New York City, NY · 681 West End Avenue · 10025
At a glance
AKAM - 685 West End Avenue is a 158,469-square-foot multifamily housing building at 681 West End Avenue in New York City, New York, built in 1928. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 56.0 kBtu/ft² and 709 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 56.0 kBtu/ft² |
| Source EUI | 75.9 kBtu/ft² |
| GHG emissions | 709 tCO₂e |
| GHG intensity | 4.5 kgCO₂e/ft² |
| Electricity | 494,900 kWh |
| Natural gas | 8,873 therms |
| Water use | 3,146 kgal |
| Gross floor area | 158,469 sq ft |
| Source record | nyc:4952327:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 56.0 kBtu/ft² | 709 tCO₂e | |
| 2023 | 94 | +4 | 51.7 kBtu/ft² | 682 tCO₂e |
| 2022 | 90 | 60.0 kBtu/ft² | 743 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
- 681 West End Avenue
- City
- New York City
- State
- New York
- ZIP
- 10025
- Coordinates
- 40.79342, -73.97456
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does AKAM - 685 West End Avenue 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 56.0 kBtu/ft² is about 25% below 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 4.5 kgCO₂e/ft² is about 14% below the group average of 5.2 kgCO₂e/ft².
At 158,469 sq ft, it is about 57% above the average floor area of 100,951 sq ft for those buildings. It was built in 1928, 24 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 AKAM - 685 West End Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for AKAM - 685 West End Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 90 in 2022 to 94 in 2023 (+4 points). Site EUI moved from 60.0 kBtu/ft² (2022) to 56.0 kBtu/ft² (2024), a 7% decrease. Reported emissions went from 743 tCO₂e to 709 tCO₂e over the same span (down 5%).
What does a site EUI of 56.0 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 - 685 West End Avenue's 56.0 kBtu/ft² across 158,469 sq ft works out to about 8.9 billion Btu (2,601 MWh-equivalent) in 2024. Its source EUI of 75.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 494,900 kWh of electricity, 8,873 therms of natural gas and 3,146 thousand gallons of water for the year.
Which law requires AKAM - 685 West End Avenue to report its energy use?
AKAM - 685 West End Avenue 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:4952327:2024). 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
- 875 Park Ave· 158,435 sq ft · score 77 (B)
- Fifty-First Beekman Corp. - 420 East 51st Street· 158,413 sq ft · score 38 (D)
- Orsid - 151-21 78th Street· 158,393 sq ft
- 30-55 Vernon Blvd· 158,375 sq ft · score 100 (A)
- 275 Linden Boulevard· 158,333 sq ft · score 99 (A)
- OneVesta Property Management: 134-54 Maple Ave· 158,250 sq ft · score 2 (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 AKAM - 685 West End Avenue's energy grade?
AKAM - 685 West End Avenue did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 56.0 kBtu/ft².
How much energy does AKAM - 685 West End Avenue use?
Its 2024 site energy-use intensity was 56.0 kBtu/ft² (75.9 kBtu/ft² source) across 158,469 sq ft, including 494,900 kWh of electricity and 8,873 therms of natural gas.
What are AKAM - 685 West End Avenue's carbon emissions?
AKAM - 685 West End Avenue reported 709 tCO₂e of greenhouse-gas emissions (4.5 kgCO₂e/ft²) for 2024.
Where is AKAM - 685 West End Avenue?
AKAM - 685 West End Avenue is at 681 West End Avenue, in New York City, New York 10025. Its coordinates are 40.79342, -73.97456 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is AKAM - 685 West End Avenue and when was it built?
AKAM - 685 West End Avenue has 158,469 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1928 as its year built. It is classed as multifamily housing.
Is AKAM - 685 West End Avenue 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 - 685 West End Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/akam-685-west-end-avenue-335fb75b (data as of October 2, 2026).