809 Allerton Avenue
Multifamily Housing in New York City, NY · 10467
At a glance
809 Allerton Avenue is a 26,828-square-foot multifamily housing building in New York City, New York, built in 1925. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 113.9 kBtu/ft² and 233 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 113.9 kBtu/ft² |
| Source EUI | 190.2 kBtu/ft² |
| GHG emissions | 233 tCO₂e |
| GHG intensity | 8.7 kgCO₂e/ft² |
| Electricity | 317,884 kWh |
| Natural gas | 18,265 therms |
| Water use | 2,557 kgal |
| Gross floor area | 26,828 sq ft |
| Source record | nyc:6674212:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 113.9 kBtu/ft² | 233 tCO₂e | |
| 2023 | — | 97.2 kBtu/ft² | 199 tCO₂e | |
| 2022 | — | 106.4 kBtu/ft² | 188 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
- 809 Allerton Avenue
- City
- New York City
- State
- New York
- ZIP
- 10467
- Coordinates
- 40.86552, -73.86316
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 809 Allerton 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 113.9 kBtu/ft² is about 52% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 8.7 kgCO₂e/ft² is about 67% above the group average of 5.2 kgCO₂e/ft².
At 26,828 sq ft, it is about 73% below the average floor area of 100,951 sq ft for those buildings. It was built in 1925, 27 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 809 Allerton Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 809 Allerton Avenue, covering report years 2022–2024. Site EUI moved from 106.4 kBtu/ft² (2022) to 113.9 kBtu/ft² (2024), an 7% increase. Reported emissions went from 188 tCO₂e to 233 tCO₂e over the same span (up 24%).
What does a site EUI of 113.9 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. 809 Allerton Avenue's 113.9 kBtu/ft² across 26,828 sq ft works out to about 3.1 billion Btu (896 MWh-equivalent) in 2024. Its source EUI of 190.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 317,884 kWh of electricity, 18,265 therms of natural gas and 2,557 thousand gallons of water for the year.
Which law requires 809 Allerton Avenue to report its energy use?
809 Allerton 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:6674212:2024). 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
- 345 Lenox Road Condominium· 26,827 sq ft · score 88 (A)
- 609 MYRTLE AVENUE· 26,824 sq ft · EUI 80.8 kBtu/ft²
- 102 Bard Avenue· 26,820 sq ft · score 1 (D)
- 2728 Marion Avenue LLC· 26,812 sq ft · score 41 (D)
- Besen - 903 Rogers· 26,809 sq ft · score 74 (B)
- 181 Coalition Plaza· 26,808 sq ft · EUI 65.1 kBtu/ft²
- 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 809 Allerton Avenue's energy grade?
809 Allerton Avenue did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 113.9 kBtu/ft².
How much energy does 809 Allerton Avenue use?
Its 2024 site energy-use intensity was 113.9 kBtu/ft² (190.2 kBtu/ft² source) across 26,828 sq ft, including 317,884 kWh of electricity and 18,265 therms of natural gas.
What are 809 Allerton Avenue's carbon emissions?
809 Allerton Avenue reported 233 tCO₂e of greenhouse-gas emissions (8.7 kgCO₂e/ft²) for 2024.
Where is 809 Allerton Avenue?
809 Allerton Avenue is in New York City, New York 10467. Its coordinates are 40.86552, -73.86316 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 809 Allerton Avenue and when was it built?
809 Allerton Avenue has 26,828 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1925 as its year built. It is classed as multifamily housing.
Is 809 Allerton 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, “809 Allerton Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/809-allerton-avenue-f356141e (data as of October 2, 2026).