Century - 515 West End Avenue
Multifamily Housing in New York City, NY · 511 WEST END AVENUE · 10024
At a glance
Century - 515 West End Avenue is a 125,403-square-foot multifamily housing building at 511 WEST END AVENUE in New York City, New York, built in 1926. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 63.4 kBtu/ft² and 659 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 63.4 kBtu/ft² |
| Source EUI | 87.1 kBtu/ft² |
| GHG emissions | 659 tCO₂e |
| GHG intensity | 5.3 kgCO₂e/ft² |
| Electricity | 472,056 kWh |
| Natural gas | 1,729 therms |
| Gross floor area | 125,403 sq ft |
| Source record | nyc:48374294:2024 |
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
- 511 WEST END AVENUE
- City
- New York City
- State
- New York
- ZIP
- 10024
- Coordinates
- 40.78798, -73.97853
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Century - 515 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 63.4 kBtu/ft² is about 15% 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 5.3 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 125,403 sq ft, it is about 24% above the average floor area of 100,951 sq ft for those buildings. It was built in 1926, 26 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.
What does a site EUI of 63.4 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. Century - 515 West End Avenue's 63.4 kBtu/ft² across 125,403 sq ft works out to about 8 billion Btu (2,330 MWh-equivalent) in 2024. Its source EUI of 87.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 472,056 kWh of electricity and 1,729 therms of natural gas for the year.
Which law requires Century - 515 West End Avenue to report its energy use?
Century - 515 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:48374294:2024). 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.
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- 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 Century - 515 West End Avenue's energy grade?
Century - 515 West End Avenue did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 63.4 kBtu/ft².
How much energy does Century - 515 West End Avenue use?
Its 2024 site energy-use intensity was 63.4 kBtu/ft² (87.1 kBtu/ft² source) across 125,403 sq ft, including 472,056 kWh of electricity and 1,729 therms of natural gas.
What are Century - 515 West End Avenue's carbon emissions?
Century - 515 West End Avenue reported 659 tCO₂e of greenhouse-gas emissions (5.3 kgCO₂e/ft²) for 2024.
Where is Century - 515 West End Avenue?
Century - 515 West End Avenue is at 511 WEST END AVENUE, in New York City, New York 10024. Its coordinates are 40.78798, -73.97853 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Century - 515 West End Avenue and when was it built?
Century - 515 West End Avenue has 125,403 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1926 as its year built. It is classed as multifamily housing.
Is Century - 515 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, “Century - 515 West End Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/century-515-west-end-avenue-4a62f1ef (data as of October 2, 2026).