24 Leonard Street
Multifamily Housing in New York City, NY · 24 LEONARD ST. · 10013
At a glance
24 Leonard Street is a 51,501-square-foot multifamily housing building at 24 LEONARD ST. in New York City, New York, built in 1940. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 49.8 kBtu/ft² and 272 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 49.8 kBtu/ft² |
| Source EUI | 126.7 kBtu/ft² |
| GHG emissions | 272 tCO₂e |
| GHG intensity | 5.3 kgCO₂e/ft² |
| Electricity | 641,556 kWh |
| Natural gas | 3,760 therms |
| Gross floor area | 51,501 sq ft |
| Source record | nyc:34002967:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 49.8 kBtu/ft² | 272 tCO₂e | |
| 2023 | — | 54.2 kBtu/ft² | 224 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
- 24 LEONARD ST.
- City
- New York City
- State
- New York
- ZIP
- 10013
- Coordinates
- 40.71860, -74.00781
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 24 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. Its site EUI of 49.8 kBtu/ft² is about 34% 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 5.3 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 51,501 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1940, 12 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 24 Leonard Street's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 24 Leonard Street, covering report years 2023–2024. Site EUI moved from 54.2 kBtu/ft² (2023) to 49.8 kBtu/ft² (2024), a 8% decrease. Reported emissions went from 224 tCO₂e to 272 tCO₂e over the same span (up 21%).
What does a site EUI of 49.8 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. 24 Leonard Street's 49.8 kBtu/ft² across 51,501 sq ft works out to about 2.6 billion Btu (752 MWh-equivalent) in 2024. Its source EUI of 126.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 641,556 kWh of electricity and 3,760 therms of natural gas for the year.
Which law requires 24 Leonard Street to report its energy use?
24 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:34002967:2024). 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
- 43 West 13th St· 51,500 sq ft · EUI 59.1 kBtu/ft²
- Wavecrest - 2723 Webb Ave· 51,500 sq ft · score 57 (C)
- Wallack - 43 West 13th Street· 51,500 sq ft · EUI 20.1 kBtu/ft²
- 425 West End Avenue· 51,495 sq ft · score 97 (A)
- 3111 Glenwood Rd.· 51,480 sq ft · score 28 (D)
- 3111 Glenwood Road· 51,480 sq ft · score 37 (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 24 Leonard Street's energy grade?
24 Leonard Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 49.8 kBtu/ft².
How much energy does 24 Leonard Street use?
Its 2024 site energy-use intensity was 49.8 kBtu/ft² (126.7 kBtu/ft² source) across 51,501 sq ft, including 641,556 kWh of electricity and 3,760 therms of natural gas.
What are 24 Leonard Street's carbon emissions?
24 Leonard Street reported 272 tCO₂e of greenhouse-gas emissions (5.3 kgCO₂e/ft²) for 2024.
Where is 24 Leonard Street?
24 Leonard Street is at 24 LEONARD ST., in New York City, New York 10013. Its coordinates are 40.71860, -74.00781 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 24 Leonard Street and when was it built?
24 Leonard Street has 51,501 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1940 as its year built. It is classed as multifamily housing.
Is 24 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, “24 Leonard Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/24-leonard-street-cf95ee16 (data as of October 2, 2026).