NB:415 LEONARD STREET
Multifamily Housing in New York City, NY · 415 LEONARD STREET · 11222
At a glance
NB:415 LEONARD STREET is a 55,839-square-foot multifamily housing building in New York City, New York, built in 1950. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 4 out of 100 (grade D), a site energy-use intensity of 87.2 kBtu/ft² and 431 tCO₂e of greenhouse-gas emissions. That score is higher than 4% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 4 (band D) |
| Site EUI | 87.2 kBtu/ft² |
| Source EUI | 178.6 kBtu/ft² |
| GHG emissions | 431 tCO₂e |
| GHG intensity | 7.7 kgCO₂e/ft² |
| Electricity | 814,115 kWh |
| Natural gas | 20,923 therms |
| Water use | 3,015 kgal |
| Gross floor area | 55,839 sq ft |
| Source record | nyc:54162893:2024 |
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
- 415 LEONARD STREET
- City
- New York City
- State
- New York
- ZIP
- 11222
- Coordinates
- 40.71899, -73.94851
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does NB:415 LEONARD STREET 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. NB:415 LEONARD STREET's ENERGY STAR score of 4 compares with an average of 63 across the 22,829 that report a score; it scores higher than 4% of them and lower than 96%. Its site EUI of 87.2 kBtu/ft² is about 16% 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 7.7 kgCO₂e/ft² is about 48% above the group average of 5.2 kgCO₂e/ft².
At 55,839 sq ft, it is about 45% below the average floor area of 100,951 sq ft for those buildings. Its 1950 construction date is close to 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 4 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 4 means the building performs better than about 4% of its national peers. BuildingCensus bands the score into report-card grades; 4 falls in band D — lowest band (1–54). It sits 71 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. NB:415 LEONARD STREET's 87.2 kBtu/ft² across 55,839 sq ft works out to about 4.9 billion Btu (1,427 MWh-equivalent) in 2024. Its source EUI of 178.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 814,115 kWh of electricity, 20,923 therms of natural gas and 3,015 thousand gallons of water for the year.
Which law requires NB:415 LEONARD STREET to report its energy use?
NB:415 LEONARD STREET 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:54162893:2024). 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
- Public School 139 - 2 of 2 BINs· 55,830 sq ft
- Public School 139 - 1 of 2 BINs· 55,829 sq ft
- 112 East 19th Street· 55,825 sq ft · score 91 (A)
- Hancock Place· 55,808 sq ft · score 42 (D)
- 91 Van Cortlandt Avenue West· 55,800 sq ft · score 70 (B)
- National Energy Cost Services Inc:1716 AVENUE T· 55,800 sq ft · score 51 (D)
- 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 NB:415 LEONARD STREET's energy grade?
NB:415 LEONARD STREET scores 4 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does NB:415 LEONARD STREET use?
Its 2024 site energy-use intensity was 87.2 kBtu/ft² (178.6 kBtu/ft² source) across 55,839 sq ft, including 814,115 kWh of electricity and 20,923 therms of natural gas.
What are NB:415 LEONARD STREET's carbon emissions?
NB:415 LEONARD STREET reported 431 tCO₂e of greenhouse-gas emissions (7.7 kgCO₂e/ft²) for 2024.
Where is NB:415 LEONARD STREET?
NB:415 LEONARD STREET is in New York City, New York 11222. Its coordinates are 40.71899, -73.94851 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is NB:415 LEONARD STREET and when was it built?
NB:415 LEONARD STREET has 55,839 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1950 as its year built. It is classed as multifamily housing.
Is NB:415 LEONARD STREET 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, “NB:415 LEONARD STREET, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/nb-415-leonard-street-941a2f5a (data as of October 2, 2026).