X306 (OECID: 0201187; BBL: 2028620014)
K-12 School in New York City, NY · 40 West Tremont Avenue · 10453
At a glance
X306 (OECID: 0201187; BBL: 2028620014) is a 202,975-square-foot K-12 school at 40 West Tremont Avenue in New York City, New York, built in 1991. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 49 out of 100 (grade D), a site energy-use intensity of 70.1 kBtu/ft² and 1,374 tCO₂e of greenhouse-gas emissions. That score is higher than 26% 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 | 49 (band D) |
| Site EUI | 70.1 kBtu/ft² |
| Source EUI | 139.8 kBtu/ft² |
| GHG emissions | 1,374 tCO₂e |
| GHG intensity | 6.8 kgCO₂e/ft² |
| Electricity | 2,291,222 kWh |
| Natural gas | 1,007 therms |
| Water use | 3,268 kgal |
| Gross floor area | 202,975 sq ft |
| Source record | nyc:1633302:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 49 | -8 | 70.1 kBtu/ft² | 1,374 tCO₂e |
| 2023 | 57 | +12 | 63.4 kBtu/ft² | 1,192 tCO₂e |
| 2022 | 45 | 81.0 kBtu/ft² | 1,298 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
- 40 West Tremont Avenue
- City
- New York City
- State
- New York
- ZIP
- 10453
- Coordinates
- 40.85182, -73.91118
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does X306 (OECID: 0201187; BBL: 2028620014) 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. X306 (OECID: 0201187; BBL: 2028620014)'s ENERGY STAR score of 49 compares with an average of 64 across the 2,052 that report a score; it scores higher than 26% of them and lower than 73%. Its site EUI of 70.1 kBtu/ft² is about 14% 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 41% above the group average of 4.8 kgCO₂e/ft².
At 202,975 sq ft, it is about twice the average floor area of 101,338 sq ft for those buildings. It was built in 1991, 38 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 X306 (OECID: 0201187; BBL: 2028620014)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for X306 (OECID: 0201187; BBL: 2028620014), covering report years 2022–2024. Its ENERGY STAR score went from 45 in 2022 to 49 in 2024 (+4 points); its best year on file was 2023, at 57. Site EUI moved from 81.0 kBtu/ft² (2022) to 70.1 kBtu/ft² (2024), a 13% decrease. Reported emissions went from 1,298 tCO₂e to 1,374 tCO₂e over the same span (up 6%).
What does an ENERGY STAR score of 49 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 49 means the building performs better than about 49% of its national peers. BuildingCensus bands the score into report-card grades; 49 falls in band D — lowest band (1–54). It sits 26 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. X306 (OECID: 0201187; BBL: 2028620014)'s 70.1 kBtu/ft² across 202,975 sq ft works out to about 14.2 billion Btu (4,170 MWh-equivalent) in 2024. Its source EUI of 139.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,291,222 kWh of electricity, 1,007 therms of natural gas and 3,268 thousand gallons of water for the year.
Which law requires X306 (OECID: 0201187; BBL: 2028620014) to report its energy use?
X306 (OECID: 0201187; BBL: 2028620014) 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:1633302:2024). 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
- X174 (OECID: 0200240; BBL: 2034780018)· 202,880 sq ft · score 92 (A)
- K071 (OECID: 0300088; BBL: 3022270001)· 202,800 sq ft · score 93 (A)
- Trinity School· 202,283 sq ft · score 88 (A)
- SJBTS: 5150 Hyland Blvd.· 201,900 sq ft · score 58 (C)
- X155 (OECID: 0200197; BBL: 2025780027)· 201,775 sq ft · score 56 (C)
- R440, R441 (OECID: 0500080; BBL: 5042440001)· 201,775 sq ft · score 81 (B)
- 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 X306 (OECID: 0201187; BBL: 2028620014)'s energy grade?
X306 (OECID: 0201187; BBL: 2028620014) scores 49 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 X306 (OECID: 0201187; BBL: 2028620014) use?
Its 2024 site energy-use intensity was 70.1 kBtu/ft² (139.8 kBtu/ft² source) across 202,975 sq ft, including 2,291,222 kWh of electricity and 1,007 therms of natural gas.
What are X306 (OECID: 0201187; BBL: 2028620014)'s carbon emissions?
X306 (OECID: 0201187; BBL: 2028620014) reported 1,374 tCO₂e of greenhouse-gas emissions (6.8 kgCO₂e/ft²) for 2024.
Where is X306 (OECID: 0201187; BBL: 2028620014)?
X306 (OECID: 0201187; BBL: 2028620014) is at 40 West Tremont Avenue, in New York City, New York 10453. Its coordinates are 40.85182, -73.91118 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is X306 (OECID: 0201187; BBL: 2028620014) and when was it built?
X306 (OECID: 0201187; BBL: 2028620014) has 202,975 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1991 as its year built. It is classed as K-12 school.
Is X306 (OECID: 0201187; BBL: 2028620014) 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, “X306 (OECID: 0201187; BBL: 2028620014), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/x306-oecid-0201187-bbl-2028620014-b1ba46c6 (data as of October 2, 2026).