79 Leonard Street
Multifamily Housing in New York City, NY · 10013
At a glance
79 Leonard Street is a 34,932-square-foot multifamily housing building in New York City, New York, built in 1910. In its 2023 New York City benchmarking disclosure it reported a site energy-use intensity of 33.9 kBtu/ft² and 94 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 33.9 kBtu/ft² |
| Source EUI | 57.7 kBtu/ft² |
| GHG emissions | 94 tCO₂e |
| GHG intensity | 2.7 kgCO₂e/ft² |
| Electricity | 108,354 kWh |
| Natural gas | 0 therms |
| Water use | 1,185 kgal |
| Gross floor area | 34,932 sq ft |
| Source record | nyc:6464943:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 33.9 kBtu/ft² | 94 tCO₂e | |
| 2022 | — | 39.6 kBtu/ft² | 99 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
- 79 Leonard Street
- City
- New York City
- State
- New York
- ZIP
- 10013
- Coordinates
- 40.71733, -74.00501
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 79 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 33.9 kBtu/ft² is about half of 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 2.7 kgCO₂e/ft² is about half of the group average of 5.2 kgCO₂e/ft².
At 34,932 sq ft, it is about 65% below the average floor area of 100,951 sq ft for those buildings. It was built in 1910, 42 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 79 Leonard Street's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 79 Leonard Street, covering report years 2022–2023. Site EUI moved from 39.6 kBtu/ft² (2022) to 33.9 kBtu/ft² (2023), a 14% decrease. Reported emissions went from 99 tCO₂e to 94 tCO₂e over the same span (down 5%).
What does a site EUI of 33.9 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. 79 Leonard Street's 33.9 kBtu/ft² across 34,932 sq ft works out to about 1.2 billion Btu (347 MWh-equivalent) in 2023. Its source EUI of 57.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 108,354 kWh of electricity, 0 therms of natural gas and 1,185 thousand gallons of water for the year.
Which law requires 79 Leonard Street to report its energy use?
79 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 2023 disclosure (source record nyc:6464943:2023). 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
- Infinity: 230 Echo Pl· 34,930 sq ft · score 38 (D)
- 726 Ocean Avenue· 34,926 sq ft · score 85 (A)
- Simry: 114 E 71st St· 34,925 sq ft · EUI 52.2 kBtu/ft²
- Chin Cano Realty Corp· 34,925 sq ft
- Scaldafiore: 20-24 31st St (Child)· 34,925 sq ft · score 43 (D)
- San Miguel Housing Development Fund Company· 34,910 sq ft · score 54 (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 79 Leonard Street's energy grade?
79 Leonard Street did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 33.9 kBtu/ft².
How much energy does 79 Leonard Street use?
Its 2023 site energy-use intensity was 33.9 kBtu/ft² (57.7 kBtu/ft² source) across 34,932 sq ft, including 108,354 kWh of electricity and 0 therms of natural gas.
What are 79 Leonard Street's carbon emissions?
79 Leonard Street reported 94 tCO₂e of greenhouse-gas emissions (2.7 kgCO₂e/ft²) for 2023.
Where is 79 Leonard Street?
79 Leonard Street is in New York City, New York 10013. Its coordinates are 40.71733, -74.00501 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 79 Leonard Street and when was it built?
79 Leonard Street has 34,932 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1910 as its year built. It is classed as multifamily housing.
Is 79 Leonard Street covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “79 Leonard Street, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/79-leonard-street-6afd0a5a (data as of October 2, 2026).