47-20 40th Street
Multifamily Housing in New York City, NY · 11104
At a glance
47-20 40th Street is a 52,499-square-foot multifamily housing building in New York City, New York, built in 1951. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 90 out of 100 (grade A), a site energy-use intensity of 62.2 kBtu/ft² and 213 tCO₂e of greenhouse-gas emissions. That score is higher than 76% 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 | 90 (band A) |
| Site EUI | 62.2 kBtu/ft² |
| Source EUI | 86.5 kBtu/ft² |
| GHG emissions | 213 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 186,383 kWh |
| Natural gas | 26,279 therms |
| Gross floor area | 52,499 sq ft |
| Source record | nyc:2944926:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 90 | +2 | 62.2 kBtu/ft² | 213 tCO₂e |
| 2023 | 88 | +1 | 62.6 kBtu/ft² | 209 tCO₂e |
| 2022 | 87 | 68.6 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
- 47-20 40th Street
- City
- New York City
- State
- New York
- ZIP
- 11104
- Coordinates
- 40.74121, -73.92479
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 47-20 40th 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. 47-20 40th Street's ENERGY STAR score of 90 compares with an average of 63 across the 22,829 that report a score; it scores higher than 76% of them and lower than 22%. Its site EUI of 62.2 kBtu/ft² is about 17% 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 4.0 kgCO₂e/ft² is about 22% below the group average of 5.2 kgCO₂e/ft².
At 52,499 sq ft, it is about half of 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 47-20 40th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 47-20 40th Street, covering report years 2022–2024. Its ENERGY STAR score went from 87 in 2022 to 90 in 2024 (+3 points). Site EUI moved from 68.6 kBtu/ft² (2022) to 62.2 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 211 tCO₂e to 213 tCO₂e over the same span (up 1%).
What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 falls in band A — high performer (85–100). 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. 47-20 40th Street's 62.2 kBtu/ft² across 52,499 sq ft works out to about 3.3 billion Btu (957 MWh-equivalent) in 2024. Its source EUI of 86.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 186,383 kWh of electricity and 26,279 therms of natural gas for the year.
Which law requires 47-20 40th Street to report its energy use?
47-20 40th 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:2944926:2024). 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
- Taube Management Realty : 475 Greenwich St· 52,494 sq ft · score 9 (D)
- Villa Gardens· 52,493 sq ft · score 91 (A)
- 1693 Vyse Avenue: 1693 Vyse Avenue· 52,492 sq ft · score 100 (A)
- 34-50 29th Street· 52,490 sq ft · score 66 (C)
- MILLER: 1443 Overing St· 52,477 sq ft · score 80 (B)
- 210 Kosciuszko Street· 52,460 sq ft
- 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 47-20 40th Street's energy grade?
47-20 40th Street scores 90 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 47-20 40th Street use?
Its 2024 site energy-use intensity was 62.2 kBtu/ft² (86.5 kBtu/ft² source) across 52,499 sq ft, including 186,383 kWh of electricity and 26,279 therms of natural gas.
What are 47-20 40th Street's carbon emissions?
47-20 40th Street reported 213 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 2024.
Where is 47-20 40th Street?
47-20 40th Street is in New York City, New York 11104. Its coordinates are 40.74121, -73.92479 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 47-20 40th Street and when was it built?
47-20 40th Street has 52,499 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 47-20 40th 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, “47-20 40th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/47-20-40th-street-9e2a6bbc (data as of October 2, 2026).