41-15 23rd Street
Multifamily Housing in New York City, NY · 11101
At a glance
41-15 23rd Street is a 59,237-square-foot multifamily housing building in New York City, New York, built in 2015. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 73 out of 100 (grade B), a site energy-use intensity of 46.4 kBtu/ft² and 260 tCO₂e of greenhouse-gas emissions. That score is higher than 54% 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 | 73 (band B) |
| Site EUI | 46.4 kBtu/ft² |
| Source EUI | 102.9 kBtu/ft² |
| GHG emissions | 260 tCO₂e |
| GHG intensity | 4.4 kgCO₂e/ft² |
| Electricity | 537,572 kWh |
| Natural gas | 9,135 therms |
| Water use | 2,570 kgal |
| Gross floor area | 59,237 sq ft |
| Source record | nyc:19515093:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 73 | -7 | 46.4 kBtu/ft² | 260 tCO₂e |
| 2023 | 80 | ±0 | 43.0 kBtu/ft² | 229 tCO₂e |
| 2022 | 80 | 44.7 kBtu/ft² | 199 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
- 41-15 23rd Street
- City
- New York City
- State
- New York
- ZIP
- 11101
- Coordinates
- 40.75269, -73.94092
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 41-15 23rd 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. 41-15 23rd Street's ENERGY STAR score of 73 compares with an average of 63 across the 22,829 that report a score; it scores higher than 54% of them and lower than 44%. Its site EUI of 46.4 kBtu/ft² is about 38% 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 4.4 kgCO₂e/ft² is about 16% below the group average of 5.2 kgCO₂e/ft².
At 59,237 sq ft, it is about 41% below the average floor area of 100,951 sq ft for those buildings. It was built in 2015, 63 years later 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 41-15 23rd Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 41-15 23rd Street, covering report years 2022–2024. Its ENERGY STAR score went from 80 in 2022 to 73 in 2024 (-7 points); its best year on file was 2022, at 80. Site EUI moved from 44.7 kBtu/ft² (2022) to 46.4 kBtu/ft² (2024), an 4% increase. Reported emissions went from 199 tCO₂e to 260 tCO₂e over the same span (up 31%).
What does an ENERGY STAR score of 73 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 73 means the building performs better than about 73% of its national peers. BuildingCensus bands the score into report-card grades; 73 falls in band B — above median (70–84). It sits 2 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. 41-15 23rd Street's 46.4 kBtu/ft² across 59,237 sq ft works out to about 2.7 billion Btu (806 MWh-equivalent) in 2024. Its source EUI of 102.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 537,572 kWh of electricity, 9,135 therms of natural gas and 2,570 thousand gallons of water for the year.
Which law requires 41-15 23rd Street to report its energy use?
41-15 23rd 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:19515093:2024). 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
- 3365 3rd Ave· 59,235 sq ft · score 96 (A)
- 143-30 Sanford Avenue· 59,231 sq ft · score 67 (C)
- Andrews: 466 Washington St.· 59,227 sq ft · EUI 23.1 kBtu/ft²
- 885 Park Avenue· 59,225 sq ft
- Carnegie Management: 585 East 21st St· 59,225 sq ft · score 83 (B)
- 552 ASSOCIATES, LLC / 1037 51· 59,220 sq ft · score 38 (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 41-15 23rd Street's energy grade?
41-15 23rd Street scores 73 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 41-15 23rd Street use?
Its 2024 site energy-use intensity was 46.4 kBtu/ft² (102.9 kBtu/ft² source) across 59,237 sq ft, including 537,572 kWh of electricity and 9,135 therms of natural gas.
What are 41-15 23rd Street's carbon emissions?
41-15 23rd Street reported 260 tCO₂e of greenhouse-gas emissions (4.4 kgCO₂e/ft²) for 2024.
Where is 41-15 23rd Street?
41-15 23rd Street is in New York City, New York 11101. Its coordinates are 40.75269, -73.94092 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 41-15 23rd Street and when was it built?
41-15 23rd Street has 59,237 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2015 as its year built. It is classed as multifamily housing.
Is 41-15 23rd 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, “41-15 23rd Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/41-15-23rd-street-d1ba37c0 (data as of October 2, 2026).