45-34 47th Street
Multifamily Housing in New York City, NY · 45-34 47Th Street · 11377
At a glance
45-34 47th Street is a 33,456-square-foot multifamily housing building at 45-34 47Th Street in New York City, New York, built in 1928. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 70 out of 100 (grade B), a site energy-use intensity of 88.2 kBtu/ft² and 180 tCO₂e of greenhouse-gas emissions. That score is higher than 51% 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 | 70 (band B) |
| Site EUI | 88.2 kBtu/ft² |
| Source EUI | 112.6 kBtu/ft² |
| GHG emissions | 180 tCO₂e |
| GHG intensity | 5.4 kgCO₂e/ft² |
| Electricity | 111,885 kWh |
| Natural gas | 25,695 therms |
| Gross floor area | 33,456 sq ft |
| Source record | nyc:6239846:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 70 | +5 | 88.2 kBtu/ft² | 180 tCO₂e |
| 2023 | 65 | -1 | 89.7 kBtu/ft² | 180 tCO₂e |
| 2022 | 66 | 93.8 kBtu/ft² | 180 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
- 45-34 47Th Street
- City
- New York City
- State
- New York
- ZIP
- 11377
- Coordinates
- 40.74227, -73.91793
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 45-34 47th 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. 45-34 47th Street's ENERGY STAR score of 70 compares with an average of 63 across the 22,829 that report a score; it scores higher than 51% of them and lower than 48%. Its site EUI of 88.2 kBtu/ft² is about 18% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 5.4 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 33,456 sq ft, it is about 67% 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 45-34 47th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 45-34 47th Street, covering report years 2022–2024. Its ENERGY STAR score went from 66 in 2022 to 70 in 2024 (+4 points). Site EUI moved from 93.8 kBtu/ft² (2022) to 88.2 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 180 tCO₂e to 180 tCO₂e over the same span (up 1%).
What does an ENERGY STAR score of 70 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 70 means the building performs better than about 70% of its national peers. BuildingCensus bands the score into report-card grades; 70 falls in band B — above median (70–84). It sits 5 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. 45-34 47th Street's 88.2 kBtu/ft² across 33,456 sq ft works out to about 3 billion Btu (865 MWh-equivalent) in 2024. Its source EUI of 112.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 111,885 kWh of electricity and 25,695 therms of natural gas for the year.
Which law requires 45-34 47th Street to report its energy use?
45-34 47th 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:6239846:2024). 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
- Quantum Property Management:957 PACIFIC STREET· 33,452 sq ft · EUI 67.6 kBtu/ft²
- 505 West 143rd Street HDFC· 33,451 sq ft · score 90 (A)
- 80 4th Avenue· 33,450 sq ft · EUI 78.7 kBtu/ft²
- Manor Apartments Inc· 33,450 sq ft · score 93 (A)
- 158-164 West 80th Street (Parent Property)· 33,447 sq ft · score 62 (C)
- Odyssey House - 113 E. 123rd Street· 33,447 sq ft · score 10 (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 45-34 47th Street's energy grade?
45-34 47th Street scores 70 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 45-34 47th Street use?
Its 2024 site energy-use intensity was 88.2 kBtu/ft² (112.6 kBtu/ft² source) across 33,456 sq ft, including 111,885 kWh of electricity and 25,695 therms of natural gas.
What are 45-34 47th Street's carbon emissions?
45-34 47th Street reported 180 tCO₂e of greenhouse-gas emissions (5.4 kgCO₂e/ft²) for 2024.
Where is 45-34 47th Street?
45-34 47th Street is at 45-34 47Th Street, in New York City, New York 11377. Its coordinates are 40.74227, -73.91793 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 45-34 47th Street and when was it built?
45-34 47th Street has 33,456 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 45-34 47th 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, “45-34 47th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/45-34-47th-street-77231dde (data as of October 2, 2026).