41-50 78 ST CORP
Multifamily Housing in New York City, NY · 4150 78 ST · 11373
At a glance
41-50 78 ST CORP is a 148,956-square-foot multifamily housing building at 4150 78 ST in New York City, New York, built in 1951. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 79 out of 100 (grade B), a site energy-use intensity of 70.7 kBtu/ft² and 685 tCO₂e of greenhouse-gas emissions. That score is higher than 62% 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 | 79 (band B) |
| Site EUI | 70.7 kBtu/ft² |
| Source EUI | 98.1 kBtu/ft² |
| GHG emissions | 685 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 594,778 kWh |
| Natural gas | 85,046 therms |
| Gross floor area | 148,956 sq ft |
| Source record | nyc:2739194:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 79 | +3 | 70.7 kBtu/ft² | 685 tCO₂e |
| 2023 | 76 | +4 | 70.4 kBtu/ft² | 669 tCO₂e |
| 2022 | 72 | 79.0 kBtu/ft² | 693 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
- 4150 78 ST
- City
- New York City
- State
- New York
- ZIP
- 11373
- Coordinates
- 40.74430, -73.88723
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 41-50 78 ST CORP 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. 41-50 78 ST CORP's ENERGY STAR score of 79 compares with an average of 63 across the 22,829 that report a score; it scores higher than 62% of them and lower than 37%. Its site EUI of 70.7 kBtu/ft² is roughly in line with 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 4.6 kgCO₂e/ft² is about 12% below the group average of 5.2 kgCO₂e/ft².
At 148,956 sq ft, it is about 48% above the average floor area of 100,951 sq ft for those buildings. Its 1951 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.
How has 41-50 78 ST CORP's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 41-50 78 ST CORP, covering report years 2022–2024. Its ENERGY STAR score went from 72 in 2022 to 79 in 2024 (+7 points). Site EUI moved from 79.0 kBtu/ft² (2022) to 70.7 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 693 tCO₂e to 685 tCO₂e over the same span (down 1%).
What does an ENERGY STAR score of 79 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 79 means the building performs better than about 79% of its national peers. BuildingCensus bands the score into report-card grades; 79 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 41-50 78 ST CORP's 70.7 kBtu/ft² across 148,956 sq ft works out to about 10.5 billion Btu (3,086 MWh-equivalent) in 2024. Its source EUI of 98.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 594,778 kWh of electricity and 85,046 therms of natural gas for the year.
Which law requires 41-50 78 ST CORP to report its energy use?
41-50 78 ST CORP 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:2739194:2024). 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)
- 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 41-50 78 ST CORP's energy grade?
41-50 78 ST CORP scores 79 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 41-50 78 ST CORP use?
Its 2024 site energy-use intensity was 70.7 kBtu/ft² (98.1 kBtu/ft² source) across 148,956 sq ft, including 594,778 kWh of electricity and 85,046 therms of natural gas.
What are 41-50 78 ST CORP's carbon emissions?
41-50 78 ST CORP reported 685 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 2024.
Where is 41-50 78 ST CORP?
41-50 78 ST CORP is at 4150 78 ST, in New York City, New York 11373. Its coordinates are 40.74430, -73.88723 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 41-50 78 ST CORP and when was it built?
41-50 78 ST CORP has 148,956 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1951 as its year built. It is classed as multifamily housing.
Is 41-50 78 ST CORP 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, “41-50 78 ST CORP, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/41-50-78-st-corp-d4c3c8d3 (data as of October 2, 2026).