The Hewitt School
K-12 School in New York City, NY · 45 East 75th St · 10021
At a glance
The Hewitt School is a 59,144-square-foot K-12 school at 45 East 75th St in New York City, New York, built in 1925. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 75 out of 100 (grade B), a site energy-use intensity of 32.1 kBtu/ft² and 196 tCO₂e of greenhouse-gas emissions. That score is higher than 58% of the 2,052 scored K-12 school buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 75 (band B) |
| Site EUI | 32.1 kBtu/ft² |
| Source EUI | 78.0 kBtu/ft² |
| GHG emissions | 196 tCO₂e |
| GHG intensity | 3.3 kgCO₂e/ft² |
| Electricity | 432,569 kWh |
| Natural gas | 1,457 therms |
| Gross floor area | 59,144 sq ft |
| Source record | nyc:16760655:2024 |
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 East 75th St
- City
- New York City
- State
- New York
- ZIP
- 10021
- Coordinates
- 40.77353, -73.96352
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does The Hewitt School compare with other K-12 school buildings in New York City?
The latest disclosures cover 2,301 K-12 school buildings in New York City, out of 48,310 buildings citywide. The Hewitt School's ENERGY STAR score of 75 compares with an average of 64 across the 2,052 that report a score; it scores higher than 58% of them and lower than 40%. Its site EUI of 32.1 kBtu/ft² is about half of the average of 61.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.3 kgCO₂e/ft² is about 31% below the group average of 4.8 kgCO₂e/ft².
At 59,144 sq ft, it is about 42% below the average floor area of 101,338 sq ft for those buildings. It was built in 1925, 28 years earlier than the group's average year built (1954). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
What does an ENERGY STAR score of 75 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 75 means the building performs better than about 75% of its national peers. BuildingCensus bands the score into report-card grades; 75 falls in band B — above median (70–84). 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. The Hewitt School's 32.1 kBtu/ft² across 59,144 sq ft works out to about 1.9 billion Btu (556 MWh-equivalent) in 2024. Its source EUI of 78.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 432,569 kWh of electricity and 1,457 therms of natural gas for the year.
Which law requires The Hewitt School to report its energy use?
The Hewitt School 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:16760655:2024). 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 K-12 school buildings in New York City
- 1275 36th Street· 59,000 sq ft · score 18 (D)
- 691 Saint Nicholas Avenue· 58,903 sq ft · score 92 (A)
- Q084 (OECID: 0400075; BBL: 4007940017)· 58,880 sq ft · score 65 (C)
- 401 Park Avenue· 58,870 sq ft · score 91 (A)
- M183 (OECID: 0100154; BBL: 1014610007)· 58,800 sq ft · score 94 (A)
- Trey Whitfield School· 58,420 sq ft · score 61 (C)
- K-12 School buildings in New York City· 2,301 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 The Hewitt School's energy grade?
The Hewitt School scores 75 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 The Hewitt School use?
Its 2024 site energy-use intensity was 32.1 kBtu/ft² (78.0 kBtu/ft² source) across 59,144 sq ft, including 432,569 kWh of electricity and 1,457 therms of natural gas.
What are The Hewitt School's carbon emissions?
The Hewitt School reported 196 tCO₂e of greenhouse-gas emissions (3.3 kgCO₂e/ft²) for 2024.
Where is The Hewitt School?
The Hewitt School is at 45 East 75th St, in New York City, New York 10021. Its coordinates are 40.77353, -73.96352 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is The Hewitt School and when was it built?
The Hewitt School has 59,144 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1925 as its year built. It is classed as K-12 school.
Is The Hewitt School 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, “The Hewitt School, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/the-hewitt-school-4435d2a2 (data as of October 2, 2026).