M816 (OECID: 0101623; BBL: 1015540015)
K-12 School in New York City, NY · 323 East 91 Street · 10128
At a glance
M816 (OECID: 0101623; BBL: 1015540015) is a 43,150-square-foot K-12 school at 323 East 91 Street in New York City, New York, built in 2009. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 88 out of 100 (grade A), a site energy-use intensity of 52.0 kBtu/ft² and 184 tCO₂e of greenhouse-gas emissions. That score is higher than 80% 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 | 88 (band A) |
| Site EUI | 52.0 kBtu/ft² |
| Source EUI | 70.4 kBtu/ft² |
| GHG emissions | 184 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 126,789 kWh |
| Water use | 0 kgal |
| Gross floor area | 43,150 sq ft |
| Source record | nyc:3128891:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 88 | -3 | 52.0 kBtu/ft² | 184 tCO₂e |
| 2023 | 91 | +1 | 46.5 kBtu/ft² | 164 tCO₂e |
| 2022 | 90 | 53.2 kBtu/ft² | 175 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
- 323 East 91 Street
- City
- New York City
- State
- New York
- ZIP
- 10128
- Coordinates
- 40.78076, -73.94869
Within ~1 km
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- Benchmarking Group - 7score 98
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See also: most efficient in New York City · biggest emitters
How does M816 (OECID: 0101623; BBL: 1015540015) 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. M816 (OECID: 0101623; BBL: 1015540015)'s ENERGY STAR score of 88 compares with an average of 64 across the 2,052 that report a score; it scores higher than 80% of them and lower than 18%. Its site EUI of 52.0 kBtu/ft² is about 15% below 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 4.3 kgCO₂e/ft² is about 11% below the group average of 4.8 kgCO₂e/ft².
At 43,150 sq ft, it is about 57% below the average floor area of 101,338 sq ft for those buildings. It was built in 2009, 56 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 M816 (OECID: 0101623; BBL: 1015540015)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for M816 (OECID: 0101623; BBL: 1015540015), covering report years 2022–2024. Its ENERGY STAR score went from 90 in 2022 to 88 in 2024 (-2 points); its best year on file was 2023, at 91. Site EUI moved from 53.2 kBtu/ft² (2022) to 52.0 kBtu/ft² (2024), a 2% decrease. Reported emissions went from 175 tCO₂e to 184 tCO₂e over the same span (up 5%).
What does an ENERGY STAR score of 88 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 88 means the building performs better than about 88% of its national peers. BuildingCensus bands the score into report-card grades; 88 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. M816 (OECID: 0101623; BBL: 1015540015)'s 52.0 kBtu/ft² across 43,150 sq ft works out to about 2.2 billion Btu (658 MWh-equivalent) in 2024. Its source EUI of 70.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 126,789 kWh of electricity and 0 thousand gallons of water for the year.
Which law requires M816 (OECID: 0101623; BBL: 1015540015) to report its energy use?
M816 (OECID: 0101623; BBL: 1015540015) 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:3128891:2024). 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
- Horace Mann 4642 Tibbet - 2109451· 43,129 sq ft
- 35 - Our Lady Queen of Martyrs School· 43,100 sq ft · score 85 (A)
- Al Madinah School· 43,000 sq ft · score 80 (B)
- 86-84 Palo Alto Avenue· 42,872 sq ft · score 98 (A)
- 210 East 77 Street· 42,662 sq ft · score 35 (D)
- 760 Dekalb Avenue· 42,500 sq ft · score 100 (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 M816 (OECID: 0101623; BBL: 1015540015)'s energy grade?
M816 (OECID: 0101623; BBL: 1015540015) scores 88 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 M816 (OECID: 0101623; BBL: 1015540015) use?
Its 2024 site energy-use intensity was 52.0 kBtu/ft² (70.4 kBtu/ft² source) across 43,150 sq ft, including 126,789 kWh of electricity.
What are M816 (OECID: 0101623; BBL: 1015540015)'s carbon emissions?
M816 (OECID: 0101623; BBL: 1015540015) reported 184 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2024.
Where is M816 (OECID: 0101623; BBL: 1015540015)?
M816 (OECID: 0101623; BBL: 1015540015) is at 323 East 91 Street, in New York City, New York 10128. Its coordinates are 40.78076, -73.94869 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is M816 (OECID: 0101623; BBL: 1015540015) and when was it built?
M816 (OECID: 0101623; BBL: 1015540015) has 43,150 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2009 as its year built. It is classed as K-12 school.
Is M816 (OECID: 0101623; BBL: 1015540015) 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, “M816 (OECID: 0101623; BBL: 1015540015), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/m816-oecid-0101623-bbl-1015540015-364638b8 (data as of October 2, 2026).