50 Lefferts Ave
Multifamily Housing in New York City, NY · 11225
At a glance
50 Lefferts Ave is a 106,182-square-foot multifamily housing building in New York City, New York, built in 1939. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 62 out of 100 (grade C), a site energy-use intensity of 73.6 kBtu/ft² and 479 tCO₂e of greenhouse-gas emissions. That score is higher than 42% 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 | 62 (band C) |
| Site EUI | 73.6 kBtu/ft² |
| Source EUI | 94.4 kBtu/ft² |
| GHG emissions | 479 tCO₂e |
| GHG intensity | 4.5 kgCO₂e/ft² |
| Electricity | 303,468 kWh |
| Natural gas | 67,839 therms |
| Gross floor area | 106,182 sq ft |
| Source record | nyc:33915547:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 62 | -8 | 73.6 kBtu/ft² | 479 tCO₂e |
| 2023 | 70 | 67.8 kBtu/ft² | 438 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
- 50 Lefferts Ave
- City
- New York City
- State
- New York
- ZIP
- 11225
- Coordinates
- 40.66181, -73.95937
Within ~1 km
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How does 50 Lefferts Ave 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. 50 Lefferts Ave's ENERGY STAR score of 62 compares with an average of 63 across the 22,829 that report a score; it scores higher than 42% of them and lower than 57%. Its site EUI of 73.6 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 4.5 kgCO₂e/ft² is about 13% below the group average of 5.2 kgCO₂e/ft².
At 106,182 sq ft, it is roughly in line with the average floor area of 100,951 sq ft for those buildings. It was built in 1939, 13 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 50 Lefferts Ave's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 50 Lefferts Ave, covering report years 2023–2024. Its ENERGY STAR score went from 70 in 2023 to 62 in 2024 (-8 points); its best year on file was 2023, at 70. Site EUI moved from 67.8 kBtu/ft² (2023) to 73.6 kBtu/ft² (2024), an 9% increase. Reported emissions went from 438 tCO₂e to 479 tCO₂e over the same span (up 10%).
What does an ENERGY STAR score of 62 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 62 means the building performs better than about 62% of its national peers. BuildingCensus bands the score into report-card grades; 62 falls in band C — below median (55–69). It sits 13 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. 50 Lefferts Ave's 73.6 kBtu/ft² across 106,182 sq ft works out to about 7.8 billion Btu (2,290 MWh-equivalent) in 2024. Its source EUI of 94.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 303,468 kWh of electricity and 67,839 therms of natural gas for the year.
Which law requires 50 Lefferts Ave to report its energy use?
50 Lefferts Ave 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:33915547:2024). 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
- The Lee· 106,166 sq ft · score 64 (C)
- Canvas - 47 East 34th Street· 106,153 sq ft · score 45 (D)
- 611 Argyle Road· 106,149 sq ft · score 91 (A)
- AKAM - 86-70 Francis Lewis Boulevard - CHILD· 106,145 sq ft
- 64-41 Saunders Street· 106,140 sq ft · score 67 (C)
- VP: 815 Gerard Ave· 106,128 sq ft · EUI 26.1 kBtu/ft²
- 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 50 Lefferts Ave's energy grade?
50 Lefferts Ave scores 62 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 50 Lefferts Ave use?
Its 2024 site energy-use intensity was 73.6 kBtu/ft² (94.4 kBtu/ft² source) across 106,182 sq ft, including 303,468 kWh of electricity and 67,839 therms of natural gas.
What are 50 Lefferts Ave's carbon emissions?
50 Lefferts Ave reported 479 tCO₂e of greenhouse-gas emissions (4.5 kgCO₂e/ft²) for 2024.
Where is 50 Lefferts Ave?
50 Lefferts Ave is in New York City, New York 11225. Its coordinates are 40.66181, -73.95937 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 50 Lefferts Ave and when was it built?
50 Lefferts Ave has 106,182 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1939 as its year built. It is classed as multifamily housing.
Is 50 Lefferts Ave 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, “50 Lefferts Ave, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/50-lefferts-ave-156d45a9 (data as of October 2, 2026).