811 Fifth Ave. Corp.
Multifamily Housing in New York City, NY · 810 Fifth Avenue · 10065
At a glance
811 Fifth Ave. Corp. is a 64,515-square-foot multifamily housing building at 810 Fifth 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 74.5 kBtu/ft² and 394 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 74.5 kBtu/ft² |
| Source EUI | 127.8 kBtu/ft² |
| GHG emissions | 394 tCO₂e |
| GHG intensity | 6.1 kgCO₂e/ft² |
| Electricity | 453,714 kWh |
| Natural gas | 477 therms |
| Gross floor area | 64,515 sq ft |
| Source record | nyc:2808376:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 74.5 kBtu/ft² | 394 tCO₂e | |
| 2023 | — | 97.0 kBtu/ft² | 535 tCO₂e | |
| 2022 | — | 58.3 kBtu/ft² | 313 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
- 810 Fifth Avenue
- City
- New York City
- State
- New York
- ZIP
- 10065
- Coordinates
- 40.76610, -73.97128
Within ~1 km
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How does 811 Fifth Ave. 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 74.5 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 6.1 kgCO₂e/ft² is about 17% above the group average of 5.2 kgCO₂e/ft².
At 64,515 sq ft, it is about 36% below 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.
How has 811 Fifth Ave. Corp.'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 811 Fifth Ave. Corp., covering report years 2022–2024. Site EUI moved from 58.3 kBtu/ft² (2022) to 74.5 kBtu/ft² (2024), an 28% increase. Reported emissions went from 313 tCO₂e to 394 tCO₂e over the same span (up 26%).
What does a site EUI of 74.5 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. 811 Fifth Ave. Corp.'s 74.5 kBtu/ft² across 64,515 sq ft works out to about 4.8 billion Btu (1,409 MWh-equivalent) in 2024. Its source EUI of 127.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 453,714 kWh of electricity and 477 therms of natural gas for the year.
Which law requires 811 Fifth Ave. Corp. to report its energy use?
811 Fifth Ave. 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:2808376:2024). 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
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- Schuyler Arms Tenants Corp (305 West 98th St)· 64,506 sq ft
- Queens 40th Owners 42nd St· 64,505 sq ft
- 6309 Bay Parkway· 64,500 sq ft · score 48 (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 811 Fifth Ave. Corp.'s energy grade?
811 Fifth Ave. Corp. did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 74.5 kBtu/ft².
How much energy does 811 Fifth Ave. Corp. use?
Its 2024 site energy-use intensity was 74.5 kBtu/ft² (127.8 kBtu/ft² source) across 64,515 sq ft, including 453,714 kWh of electricity and 477 therms of natural gas.
What are 811 Fifth Ave. Corp.'s carbon emissions?
811 Fifth Ave. Corp. reported 394 tCO₂e of greenhouse-gas emissions (6.1 kgCO₂e/ft²) for 2024.
Where is 811 Fifth Ave. Corp.?
811 Fifth Ave. Corp. is at 810 Fifth Avenue, in New York City, New York 10065. Its coordinates are 40.76610, -73.97128 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 811 Fifth Ave. Corp. and when was it built?
811 Fifth Ave. Corp. has 64,515 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 811 Fifth Ave. 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, “811 Fifth Ave. Corp., New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/811-fifth-ave-corp-91927262 (data as of October 2, 2026).