Benchmarking Group - 38
Hospital (General Medical & Surgical) in New York City, NY · 451 Clarkson Ave · 11203
At a glance
Benchmarking Group - 38 is a 2,381,204-square-foot hospital (general medical & surgical) at 451 Clarkson Ave in New York City, New York, built in 1930. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 93 out of 100 (grade A), a site energy-use intensity of 298.2 kBtu/ft² and 45,282 tCO₂e of greenhouse-gas emissions. That score is higher than 64% of the 113 scored hospital (general medical & surgical) buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 93 (band A) |
| Site EUI | 298.2 kBtu/ft² |
| Source EUI | 402.1 kBtu/ft² |
| GHG emissions | 45,282 tCO₂e |
| GHG intensity | 19.0 kgCO₂e/ft² |
| Electricity | 35,521,965 kWh |
| Natural gas | 5,860,638 therms |
| Water use | 13,637 kgal |
| Gross floor area | 2,381,204 sq ft |
| Source record | nyc:21354529:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 93 | -2 | 298.2 kBtu/ft² | 45,282 tCO₂e |
| 2023 | 95 | ±0 | 286.1 kBtu/ft² | 42,384 tCO₂e |
| 2022 | 95 | 295.2 kBtu/ft² | 42,913 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
- 451 Clarkson Ave
- City
- New York City
- State
- New York
- ZIP
- 11203
- Coordinates
- 40.65576, -73.94460
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Benchmarking Group - 38 compare with other hospital (general medical & surgical) buildings in New York City?
The latest disclosures cover 226 hospital (general medical & surgical) buildings in New York City, out of 48,310 buildings citywide. Benchmarking Group - 38's ENERGY STAR score of 93 compares with an average of 61 across the 113 that report a score; it scores higher than 64% of them and lower than 35%. Its site EUI of 298.2 kBtu/ft² is about 20% above the average of 248.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 19.0 kgCO₂e/ft² is roughly in line with the group average of 18.9 kgCO₂e/ft².
At 2,381,204 sq ft, it is about 429% above the average floor area of 450,487 sq ft for those buildings. It was built in 1930, 22 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 748 hospital (general medical & surgical) buildings average an ENERGY STAR score of 59 and a site EUI of 238.7 kBtu/ft².
How has Benchmarking Group - 38's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Benchmarking Group - 38, covering report years 2022–2024. Its ENERGY STAR score went from 95 in 2022 to 93 in 2024 (-2 points); its best year on file was 2022, at 95. Site EUI moved from 295.2 kBtu/ft² (2022) to 298.2 kBtu/ft² (2024), an 1% increase. Reported emissions went from 42,913 tCO₂e to 45,282 tCO₂e over the same span (up 6%).
What does an ENERGY STAR score of 93 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 93 means the building performs better than about 93% of its national peers. BuildingCensus bands the score into report-card grades; 93 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. Benchmarking Group - 38's 298.2 kBtu/ft² across 2,381,204 sq ft works out to about 710.1 billion Btu (208,103 MWh-equivalent) in 2024. Its source EUI of 402.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 35,521,965 kWh of electricity, 5,860,638 therms of natural gas and 13,637 thousand gallons of water for the year.
Which law requires Benchmarking Group - 38 to report its energy use?
Benchmarking Group - 38 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:21354529:2024). 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 hospital (general medical & surgical) buildings in New York City
- H+H_9691_Bellevue Hospital: Center· 2,276,300 sq ft · score 91 (A)
- CUMC - Irving Medical Center· 2,047,868 sq ft
- NH LIJ Hillside Campus· 1,729,945 sq ft · score 21 (D)
- Moses Campus· 1,715,442 sq ft · score 30 (D)
- NH LIJ ZH Hospital Campus· 1,699,445 sq ft · score 12 (D)
- Benchmarking Group - 23· 1,654,909 sq ft · score 94 (A)
- Hospital (General Medical & Surgical) buildings in New York City· 226 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 Benchmarking Group - 38's energy grade?
Benchmarking Group - 38 scores 93 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 Benchmarking Group - 38 use?
Its 2024 site energy-use intensity was 298.2 kBtu/ft² (402.1 kBtu/ft² source) across 2,381,204 sq ft, including 35,521,965 kWh of electricity and 5,860,638 therms of natural gas.
What are Benchmarking Group - 38's carbon emissions?
Benchmarking Group - 38 reported 45,282 tCO₂e of greenhouse-gas emissions (19.0 kgCO₂e/ft²) for 2024.
Where is Benchmarking Group - 38?
Benchmarking Group - 38 is at 451 Clarkson Ave, in New York City, New York 11203. Its coordinates are 40.65576, -73.94460 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Benchmarking Group - 38 and when was it built?
Benchmarking Group - 38 has 2,381,204 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1930 as its year built. It is classed as hospital (general medical & surgical).
Is Benchmarking Group - 38 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, “Benchmarking Group - 38, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/benchmarking-group-38-3a11e223 (data as of October 2, 2026).