Wallack - 139 East 79th Street
Multifamily Housing in New York City, NY · 137 EAST 79 STREET · 10075
At a glance
Wallack - 139 East 79th Street is a 63,737-square-foot multifamily housing building at 137 EAST 79 STREET in New York City, New York, built in 1928. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 66.8 kBtu/ft² and 326 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 66.8 kBtu/ft² |
| Source EUI | 108.3 kBtu/ft² |
| GHG emissions | 326 tCO₂e |
| GHG intensity | 5.3 kgCO₂e/ft² |
| Electricity | 317,078 kWh |
| Natural gas | 320 therms |
| Gross floor area | 63,737 sq ft |
| Source record | nyc:6687936:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 66.8 kBtu/ft² | 326 tCO₂e | |
| 2023 | — | 64.8 kBtu/ft² | 249 tCO₂e | |
| 2022 | — | 59.8 kBtu/ft² | 211 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
- 137 EAST 79 STREET
- City
- New York City
- State
- New York
- ZIP
- 10075
- Coordinates
- 40.77513, -73.95927
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Wallack - 139 East 79th 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 66.8 kBtu/ft² is about 11% 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 63,737 sq ft, it is about 37% below the average floor area of 100,951 sq ft for those buildings. It was built in 1928, 24 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 Wallack - 139 East 79th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Wallack - 139 East 79th Street, covering report years 2022–2024. Site EUI moved from 59.8 kBtu/ft² (2022) to 66.8 kBtu/ft² (2024), an 12% increase. Reported emissions went from 211 tCO₂e to 326 tCO₂e over the same span (up 55%).
What does a site EUI of 66.8 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. Wallack - 139 East 79th Street's 66.8 kBtu/ft² across 63,737 sq ft works out to about 4.3 billion Btu (1,248 MWh-equivalent) in 2024. Its source EUI of 108.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 317,078 kWh of electricity and 320 therms of natural gas for the year.
Which law requires Wallack - 139 East 79th Street to report its energy use?
Wallack - 139 East 79th 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:6687936:2024). 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.
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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 Wallack - 139 East 79th Street's energy grade?
Wallack - 139 East 79th Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 66.8 kBtu/ft².
How much energy does Wallack - 139 East 79th Street use?
Its 2024 site energy-use intensity was 66.8 kBtu/ft² (108.3 kBtu/ft² source) across 63,737 sq ft, including 317,078 kWh of electricity and 320 therms of natural gas.
What are Wallack - 139 East 79th Street's carbon emissions?
Wallack - 139 East 79th Street reported 326 tCO₂e of greenhouse-gas emissions (5.3 kgCO₂e/ft²) for 2024.
Where is Wallack - 139 East 79th Street?
Wallack - 139 East 79th Street is at 137 EAST 79 STREET, in New York City, New York 10075. Its coordinates are 40.77513, -73.95927 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Wallack - 139 East 79th Street and when was it built?
Wallack - 139 East 79th Street has 63,737 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1928 as its year built. It is classed as multifamily housing.
Is Wallack - 139 East 79th 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, “Wallack - 139 East 79th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/wallack-139-east-79th-street-883070e1 (data as of October 2, 2026).