Trevor Day School Lower School
K-12 School in New York City, NY · 1 West 88th Street · 10024
At a glance
Trevor Day School Lower School is a 64,986-square-foot K-12 school at 1 West 88th Street in New York City, New York, built in 1973. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 12 out of 100 (grade D), a site energy-use intensity of 78.0 kBtu/ft² and 445 tCO₂e of greenhouse-gas emissions. That score is higher than 6% 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 | 12 (band D) |
| Site EUI | 78.0 kBtu/ft² |
| Source EUI | 158.4 kBtu/ft² |
| GHG emissions | 445 tCO₂e |
| GHG intensity | 6.8 kgCO₂e/ft² |
| Electricity | 832,957 kWh |
| Natural gas | 22,241 therms |
| Water use | 3,500 kgal |
| Gross floor area | 64,986 sq ft |
| Source record | nyc:7356995:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 12 | -19 | 78.0 kBtu/ft² | 445 tCO₂e |
| 2023 | 31 | +12 | 52.7 kBtu/ft² | 356 tCO₂e |
| 2022 | 19 | 72.7 kBtu/ft² | 375 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
- 1 West 88th Street
- City
- New York City
- State
- New York
- ZIP
- 10024
- Coordinates
- 40.78678, -73.96880
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Trevor Day School Lower 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. Trevor Day School Lower School's ENERGY STAR score of 12 compares with an average of 64 across the 2,052 that report a score; it scores higher than 6% of them and lower than 94%. Its site EUI of 78.0 kBtu/ft² is about 27% above the average of 61.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 6.8 kgCO₂e/ft² is about 43% above the group average of 4.8 kgCO₂e/ft².
At 64,986 sq ft, it is about 36% below the average floor area of 101,338 sq ft for those buildings. It was built in 1973, 20 years later 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.
How has Trevor Day School Lower School's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Trevor Day School Lower School, covering report years 2022–2024. Its ENERGY STAR score went from 19 in 2022 to 12 in 2024 (-7 points); its best year on file was 2023, at 31. Site EUI moved from 72.7 kBtu/ft² (2022) to 78.0 kBtu/ft² (2024), an 7% increase. Reported emissions went from 375 tCO₂e to 445 tCO₂e over the same span (up 19%).
What does an ENERGY STAR score of 12 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 12 means the building performs better than about 12% of its national peers. BuildingCensus bands the score into report-card grades; 12 falls in band D — lowest band (1–54). It sits 63 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. Trevor Day School Lower School's 78.0 kBtu/ft² across 64,986 sq ft works out to about 5.1 billion Btu (1,486 MWh-equivalent) in 2024. Its source EUI of 158.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 832,957 kWh of electricity, 22,241 therms of natural gas and 3,500 thousand gallons of water for the year.
Which law requires Trevor Day School Lower School to report its energy use?
Trevor Day School Lower 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:7356995:2024). 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
- M841 (OECID: 0100033; BBL: 1012300001)· 64,880 sq ft · score 69 (C)
- K185 (OECID: 0300187; BBL: 3060430001)· 64,800 sq ft · score 38 (D)
- K153 (OECID: 0300155; BBL: 3072910030)· 64,800 sq ft · score 89 (A)
- Q287 (OECID: 0401763; BBL: 4017250001)· 64,791 sq ft · score 21 (D)
- M058 (OECID: 0100069; BBL: 1010430022)· 64,480 sq ft · score 79 (B)
- Q316 (OECID: 0401777; BBL: 4090640031)· 63,864 sq ft · score 4 (D)
- 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 Trevor Day School Lower School's energy grade?
Trevor Day School Lower School scores 12 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Trevor Day School Lower School use?
Its 2024 site energy-use intensity was 78.0 kBtu/ft² (158.4 kBtu/ft² source) across 64,986 sq ft, including 832,957 kWh of electricity and 22,241 therms of natural gas.
What are Trevor Day School Lower School's carbon emissions?
Trevor Day School Lower School reported 445 tCO₂e of greenhouse-gas emissions (6.8 kgCO₂e/ft²) for 2024.
Where is Trevor Day School Lower School?
Trevor Day School Lower School is at 1 West 88th Street, in New York City, New York 10024. Its coordinates are 40.78678, -73.96880 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Trevor Day School Lower School and when was it built?
Trevor Day School Lower School has 64,986 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1973 as its year built. It is classed as K-12 school.
Is Trevor Day School Lower 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, “Trevor Day School Lower School, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/trevor-day-school-lower-school-89e666d5 (data as of October 2, 2026).