270 Clarkson Ave
Multifamily Housing in New York City, NY · 11226
At a glance
270 Clarkson Ave is a 95,092-square-foot multifamily housing building in New York City, New York, built in 1962. In its 2022 New York City benchmarking disclosure it reported an ENERGY STAR score of 71 out of 100 (grade B), a site energy-use intensity of 77.6 kBtu/ft² and 434 tCO₂e of greenhouse-gas emissions. That score is higher than 52% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 71 (band B) |
| Site EUI | 77.6 kBtu/ft² |
| Source EUI | 106.1 kBtu/ft² |
| GHG emissions | 434 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 391,811 kWh |
| Water use | 10,206 kgal |
| Gross floor area | 95,092 sq ft |
| Source record | nyc:4405290:2022 |
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
- 270 Clarkson Ave
- City
- New York City
- State
- New York
- ZIP
- 11226
- Coordinates
- 40.65536, -73.95106
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 270 Clarkson Ave 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. 270 Clarkson Ave's ENERGY STAR score of 71 compares with an average of 63 across the 22,829 that report a score; it scores higher than 52% of them and lower than 47%. Its site EUI of 77.6 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 4.6 kgCO₂e/ft² is about 12% below the group average of 5.2 kgCO₂e/ft².
At 95,092 sq ft, it is roughly in line with the average floor area of 100,951 sq ft for those buildings. It was built in 1962, 10 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.
What does an ENERGY STAR score of 71 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 71 means the building performs better than about 71% of its national peers. BuildingCensus bands the score into report-card grades; 71 falls in band B — above median (70–84). It sits 4 points below 75, the threshold for ENERGY STAR certification. In New York City, 43% of scored buildings are at 75 or above.
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. 270 Clarkson Ave's 77.6 kBtu/ft² across 95,092 sq ft works out to about 7.4 billion Btu (2,163 MWh-equivalent) in 2022. Its source EUI of 106.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 391,811 kWh of electricity and 10,206 thousand gallons of water for the year.
Which law requires 270 Clarkson Ave to report its energy use?
270 Clarkson Ave 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 2022 disclosure (source record nyc:4405290:2022). 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
- 445 West 240th Street (Parent Property)· 95,061 sq ft · score 85 (A)
- 236 East 36th Street· 95,057 sq ft · score 77 (B)
- Deepdale Corp 4 Cluster L· 95,056 sq ft
- 92 Stockton Street· 95,054 sq ft · score 75 (B)
- 92 Stockton Street· 95,054 sq ft · score 49 (D)
- Martin Gelfand: 835 Ocean Ave· 95,037 sq ft · score 59 (C)
- 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 270 Clarkson Ave's energy grade?
270 Clarkson Ave scores 71 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2022 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 270 Clarkson Ave use?
Its 2022 site energy-use intensity was 77.6 kBtu/ft² (106.1 kBtu/ft² source) across 95,092 sq ft, including 391,811 kWh of electricity.
What are 270 Clarkson Ave's carbon emissions?
270 Clarkson Ave reported 434 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 2022.
Where is 270 Clarkson Ave?
270 Clarkson Ave is in New York City, New York 11226. Its coordinates are 40.65536, -73.95106 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 270 Clarkson Ave and when was it built?
270 Clarkson Ave has 95,092 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1962 as its year built. It is classed as multifamily housing.
Is 270 Clarkson Ave covered by Local Law 84 (LL84)?
Yes — it appears in the 2022 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, “270 Clarkson Ave, New York City, New York — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/270-clarkson-ave-d89fdddc (data as of October 2, 2026).