K152 (OECID: 0300154; BBL: 3075510026)
K-12 School in New York City, NY · 725 East 23rd Street · 11210
At a glance
K152 (OECID: 0300154; BBL: 3075510026) is a 184,800-square-foot K-12 school at 725 East 23rd Street in New York City, New York, built in 1907. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 30 out of 100 (grade D), a site energy-use intensity of 87.2 kBtu/ft² and 1,176 tCO₂e of greenhouse-gas emissions. That score is higher than 14% 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 | 30 (band D) |
| Site EUI | 87.2 kBtu/ft² |
| Source EUI | 142.1 kBtu/ft² |
| GHG emissions | 1,176 tCO₂e |
| GHG intensity | 6.4 kgCO₂e/ft² |
| Electricity | 1,568,452 kWh |
| Natural gas | 102,761 therms |
| Water use | 1,599 kgal |
| Gross floor area | 184,800 sq ft |
| Source record | nyc:1633102:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 30 | +11 | 87.2 kBtu/ft² | 1,176 tCO₂e |
| 2023 | 19 | +1 | 95.4 kBtu/ft² | 1,264 tCO₂e |
| 2022 | 18 | 108.6 kBtu/ft² | 1,248 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
- 725 East 23rd Street
- City
- New York City
- State
- New York
- ZIP
- 11210
- Coordinates
- 40.63256, -73.95472
Within ~1 km
Nearby benchmarked buildings
- Benchmarking Group - 33score —
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College/University · 291,972 sq ft
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See also: most efficient in New York City · biggest emitters
How does K152 (OECID: 0300154; BBL: 3075510026) 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. K152 (OECID: 0300154; BBL: 3075510026)'s ENERGY STAR score of 30 compares with an average of 64 across the 2,052 that report a score; it scores higher than 14% of them and lower than 86%. Its site EUI of 87.2 kBtu/ft² is about 42% 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 6.4 kgCO₂e/ft² is about 33% above the group average of 4.8 kgCO₂e/ft².
At 184,800 sq ft, it is about 82% above the average floor area of 101,338 sq ft for those buildings. It was built in 1907, 46 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.
How has K152 (OECID: 0300154; BBL: 3075510026)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for K152 (OECID: 0300154; BBL: 3075510026), covering report years 2022–2024. Its ENERGY STAR score went from 18 in 2022 to 30 in 2024 (+12 points). Site EUI moved from 108.6 kBtu/ft² (2022) to 87.2 kBtu/ft² (2024), a 20% decrease. Reported emissions went from 1,248 tCO₂e to 1,176 tCO₂e over the same span (down 6%).
What does an ENERGY STAR score of 30 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 30 means the building performs better than about 30% of its national peers. BuildingCensus bands the score into report-card grades; 30 falls in band D — lowest band (1–54). It sits 45 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. K152 (OECID: 0300154; BBL: 3075510026)'s 87.2 kBtu/ft² across 184,800 sq ft works out to about 16.1 billion Btu (4,723 MWh-equivalent) in 2024. Its source EUI of 142.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,568,452 kWh of electricity, 102,761 therms of natural gas and 1,599 thousand gallons of water for the year.
Which law requires K152 (OECID: 0300154; BBL: 3075510026) to report its energy use?
K152 (OECID: 0300154; BBL: 3075510026) 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:1633102:2024). 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
- Wavecrest - 1000 Westchester Avenue· 183,964 sq ft · EUI 0.0 kBtu/ft²
- M056 (OECID: 0100076; BBL: 1002690041)· 183,775 sq ft · score 85 (A)
- Q204 (OECID: 0400202; BBL: 4003430001)· 183,725 sq ft · score 95 (A)
- Q744 (OECID: 0401633; BBL: 4016000061)· 183,600 sq ft · score 10 (D)
- K281 (OECID: 0300281; BBL: 3068910001)· 183,600 sq ft · score 85 (A)
- M143 (OECID: 0100148; BBL: 1021550035)· 183,170 sq ft · score 91 (A)
- 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 K152 (OECID: 0300154; BBL: 3075510026)'s energy grade?
K152 (OECID: 0300154; BBL: 3075510026) scores 30 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 K152 (OECID: 0300154; BBL: 3075510026) use?
Its 2024 site energy-use intensity was 87.2 kBtu/ft² (142.1 kBtu/ft² source) across 184,800 sq ft, including 1,568,452 kWh of electricity and 102,761 therms of natural gas.
What are K152 (OECID: 0300154; BBL: 3075510026)'s carbon emissions?
K152 (OECID: 0300154; BBL: 3075510026) reported 1,176 tCO₂e of greenhouse-gas emissions (6.4 kgCO₂e/ft²) for 2024.
Where is K152 (OECID: 0300154; BBL: 3075510026)?
K152 (OECID: 0300154; BBL: 3075510026) is at 725 East 23rd Street, in New York City, New York 11210. Its coordinates are 40.63256, -73.95472 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is K152 (OECID: 0300154; BBL: 3075510026) and when was it built?
K152 (OECID: 0300154; BBL: 3075510026) has 184,800 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1907 as its year built. It is classed as K-12 school.
Is K152 (OECID: 0300154; BBL: 3075510026) 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, “K152 (OECID: 0300154; BBL: 3075510026), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/k152-oecid-0300154-bbl-3075510026-7b20c828 (data as of October 2, 2026).