143 - 145 Classon Avenue
Multifamily Housing in New York City, NY · 143 Classon Avenue · 11205
At a glance
143 - 145 Classon Avenue is a 48,572-square-foot multifamily housing building at 143 Classon Avenue in New York City, New York, built in 2005. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 48.2 kBtu/ft² and 182 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 48.2 kBtu/ft² |
| Source EUI | 84.1 kBtu/ft² |
| GHG emissions | 182 tCO₂e |
| GHG intensity | 3.8 kgCO₂e/ft² |
| Electricity | 272,164 kWh |
| Natural gas | 14,140 therms |
| Water use | 1,741 kgal |
| Gross floor area | 48,572 sq ft |
| Source record | nyc:32608565:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 48.2 kBtu/ft² | 182 tCO₂e | |
| 2023 | — | 48.2 kBtu/ft² | 180 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
- 143 Classon Avenue
- City
- New York City
- State
- New York
- ZIP
- 11205
- Coordinates
- 40.69588, -73.96150
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 143 - 145 Classon 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 48.2 kBtu/ft² is about 36% 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 3.8 kgCO₂e/ft² is about 28% below the group average of 5.2 kgCO₂e/ft².
At 48,572 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 2005, 53 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 143 - 145 Classon Avenue's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 143 - 145 Classon Avenue, covering report years 2023–2024. Site EUI moved from 48.2 kBtu/ft² (2023) to 48.2 kBtu/ft² (2024), an 0% increase. Reported emissions went from 180 tCO₂e to 182 tCO₂e over the same span (up 1%).
What does a site EUI of 48.2 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. 143 - 145 Classon Avenue's 48.2 kBtu/ft² across 48,572 sq ft works out to about 2.3 billion Btu (686 MWh-equivalent) in 2024. Its source EUI of 84.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 272,164 kWh of electricity, 14,140 therms of natural gas and 1,741 thousand gallons of water for the year.
Which law requires 143 - 145 Classon Avenue to report its energy use?
143 - 145 Classon 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:32608565:2024). 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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- 10 Jones Street· 48,544 sq ft · score 46 (D)
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- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is 143 - 145 Classon Avenue's energy grade?
143 - 145 Classon Avenue did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 48.2 kBtu/ft².
How much energy does 143 - 145 Classon Avenue use?
Its 2024 site energy-use intensity was 48.2 kBtu/ft² (84.1 kBtu/ft² source) across 48,572 sq ft, including 272,164 kWh of electricity and 14,140 therms of natural gas.
What are 143 - 145 Classon Avenue's carbon emissions?
143 - 145 Classon Avenue reported 182 tCO₂e of greenhouse-gas emissions (3.8 kgCO₂e/ft²) for 2024.
Where is 143 - 145 Classon Avenue?
143 - 145 Classon Avenue is at 143 Classon Avenue, in New York City, New York 11205. Its coordinates are 40.69588, -73.96150 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 143 - 145 Classon Avenue and when was it built?
143 - 145 Classon Avenue has 48,572 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2005 as its year built. It is classed as multifamily housing.
Is 143 - 145 Classon 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, “143 - 145 Classon Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/143-145-classon-avenue-bfeeec85 (data as of October 2, 2026).