47-21 41st Street
Multifamily Housing in New York City, NY · 11104
At a glance
47-21 41st Street is a 64,758-square-foot multifamily housing building in New York City, New York, built in 1937. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 67 out of 100 (grade C), a site energy-use intensity of 79.2 kBtu/ft² and 312 tCO₂e of greenhouse-gas emissions. That score is higher than 48% 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 | 67 (band C) |
| Site EUI | 79.2 kBtu/ft² |
| Source EUI | 100.3 kBtu/ft² |
| GHG emissions | 312 tCO₂e |
| GHG intensity | 4.8 kgCO₂e/ft² |
| Electricity | 185,979 kWh |
| Natural gas | 44,926 therms |
| Water use | 1,937 kgal |
| Gross floor area | 64,758 sq ft |
| Source record | nyc:2797979:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 67 | +1 | 79.2 kBtu/ft² | 312 tCO₂e |
| 2023 | 66 | -1 | 75.9 kBtu/ft² | 299 tCO₂e |
| 2022 | 67 | 80.7 kBtu/ft² | 300 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
- 47-21 41st Street
- City
- New York City
- State
- New York
- ZIP
- 11104
- Coordinates
- 40.74119, -73.92382
Within ~1 km
Nearby benchmarked buildings
- 43-10 48th Avenue - 36322score —
Multifamily Housing · 450,492 sq ft
- 47-25 34th Streetscore —
Office · 322,290 sq ft
K-12 School · 317,000 sq ft
- 47-25 34th Streetscore —
Non-Refrigerated Warehouse · 273,360 sq ft
- MRA HUBscore 96
Office · 272,562 sq ft
- SUPERIOR: 41-15 45th Streetscore 100
Multifamily Housing · 267,500 sq ft
See also: most efficient in New York City · biggest emitters
How does 47-21 41st 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. 47-21 41st Street's ENERGY STAR score of 67 compares with an average of 63 across the 22,829 that report a score; it scores higher than 48% of them and lower than 51%. Its site EUI of 79.2 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 4.8 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 64,758 sq ft, it is about 36% below the average floor area of 100,951 sq ft for those buildings. It was built in 1937, 15 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 47-21 41st Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 47-21 41st Street, covering report years 2022–2024. Its ENERGY STAR score was 67 in both 2022 and 2024. Site EUI moved from 80.7 kBtu/ft² (2022) to 79.2 kBtu/ft² (2024), a 2% decrease. Reported emissions went from 300 tCO₂e to 312 tCO₂e over the same span (up 4%).
What does an ENERGY STAR score of 67 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 67 means the building performs better than about 67% of its national peers. BuildingCensus bands the score into report-card grades; 67 falls in band C — below median (55–69). It sits 8 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. 47-21 41st Street's 79.2 kBtu/ft² across 64,758 sq ft works out to about 5.1 billion Btu (1,503 MWh-equivalent) in 2024. Its source EUI of 100.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 185,979 kWh of electricity, 44,926 therms of natural gas and 1,937 thousand gallons of water for the year.
Which law requires 47-21 41st Street to report its energy use?
47-21 41st 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:2797979:2024). 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
- 3105 Decatur Ave· 64,740 sq ft · score 42 (D)
- 211 West 29th Street· 64,734 sq ft · score 87 (A)
- 908 East 181st Street· 64,734 sq ft
- 1000 Freeman Street· 64,727 sq ft · score 61 (C)
- 16 Park Avenue - 30377· 64,725 sq ft · score 95 (A)
- 8315& 8319 116 St Apt Co.· 64,716 sq ft · score 62 (C)
- 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 47-21 41st Street's energy grade?
47-21 41st Street scores 67 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 47-21 41st Street use?
Its 2024 site energy-use intensity was 79.2 kBtu/ft² (100.3 kBtu/ft² source) across 64,758 sq ft, including 185,979 kWh of electricity and 44,926 therms of natural gas.
What are 47-21 41st Street's carbon emissions?
47-21 41st Street reported 312 tCO₂e of greenhouse-gas emissions (4.8 kgCO₂e/ft²) for 2024.
Where is 47-21 41st Street?
47-21 41st Street is in New York City, New York 11104. Its coordinates are 40.74119, -73.92382 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 47-21 41st Street and when was it built?
47-21 41st Street has 64,758 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1937 as its year built. It is classed as multifamily housing.
Is 47-21 41st 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, “47-21 41st Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/47-21-41st-street-c063f091 (data as of October 2, 2026).