M223 (OECID: 0101343; BBL: 1019570001)
K-12 School in New York City, NY · 71-111 Convent Avenue · 10027
At a glance
M223 (OECID: 0101343; BBL: 1019570001) is a 25,360-square-foot K-12 school at 71-111 Convent Avenue in New York City, New York, built in 1938. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 40 out of 100 (grade D), a site energy-use intensity of 86.1 kBtu/ft² and 190 tCO₂e of greenhouse-gas emissions. That score is higher than 20% 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 | 40 (band D) |
| Site EUI | 86.1 kBtu/ft² |
| Source EUI | 135.1 kBtu/ft² |
| GHG emissions | 190 tCO₂e |
| GHG intensity | 7.5 kgCO₂e/ft² |
| Electricity | 199,766 kWh |
| Natural gas | 10 therms |
| Water use | 14,925 kgal |
| Gross floor area | 25,360 sq ft |
| Source record | nyc:1836712:2024 |
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
- 71-111 Convent Avenue
- City
- New York City
- State
- New York
- ZIP
- 10027
- Coordinates
- 40.81546, -73.95291
Within ~1 km
Nearby benchmarked buildings
- Benchmarking Group - 10score —
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- GRANTscore 17
Multifamily Housing · 1,931,229 sq ft
- SAINT NICHOLASscore —
Multifamily Housing · 1,447,826 sq ft
- MANHATTANVILLEscore 13
Multifamily Housing · 1,443,550 sq ft
- 1470 Amsterdam Avenuescore 2
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- Manhattanville Campusscore —
College/University · 1,272,806 sq ft
See also: most efficient in New York City · biggest emitters
How does M223 (OECID: 0101343; BBL: 1019570001) 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. M223 (OECID: 0101343; BBL: 1019570001)'s ENERGY STAR score of 40 compares with an average of 64 across the 2,052 that report a score; it scores higher than 20% of them and lower than 80%. Its site EUI of 86.1 kBtu/ft² is about 40% 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 7.5 kgCO₂e/ft² is about 56% above the group average of 4.8 kgCO₂e/ft².
At 25,360 sq ft, it is about 75% below the average floor area of 101,338 sq ft for those buildings. It was built in 1938, 15 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 40 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 40 means the building performs better than about 40% of its national peers. BuildingCensus bands the score into report-card grades; 40 falls in band D — lowest band (1–54). It sits 35 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. M223 (OECID: 0101343; BBL: 1019570001)'s 86.1 kBtu/ft² across 25,360 sq ft works out to about 2.2 billion Btu (640 MWh-equivalent) in 2024. Its source EUI of 135.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 199,766 kWh of electricity, 10 therms of natural gas and 14,925 thousand gallons of water for the year.
Which law requires M223 (OECID: 0101343; BBL: 1019570001) to report its energy use?
M223 (OECID: 0101343; BBL: 1019570001) 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:1836712:2024). 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
- M528 (OECID: 0100567; BBL: 1021640032)· 25,260 sq ft · score 32 (D)
- X864 (OECID: 0200233; BBL: 2031140052)· 25,260 sq ft · score 3 (D)
- Q023 (OECID: 0400023; BBL: 4049560055)· 25,260 sq ft · score 88 (A)
- St. Vincent Ferrer High School· 25,250 sq ft
- Rocklyn: Holy Spirit (3054370038)· 25,245 sq ft · score 85 (A)
- lyceum kennedy· 25,212 sq ft · score 36 (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 M223 (OECID: 0101343; BBL: 1019570001)'s energy grade?
M223 (OECID: 0101343; BBL: 1019570001) scores 40 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 M223 (OECID: 0101343; BBL: 1019570001) use?
Its 2024 site energy-use intensity was 86.1 kBtu/ft² (135.1 kBtu/ft² source) across 25,360 sq ft, including 199,766 kWh of electricity and 10 therms of natural gas.
What are M223 (OECID: 0101343; BBL: 1019570001)'s carbon emissions?
M223 (OECID: 0101343; BBL: 1019570001) reported 190 tCO₂e of greenhouse-gas emissions (7.5 kgCO₂e/ft²) for 2024.
Where is M223 (OECID: 0101343; BBL: 1019570001)?
M223 (OECID: 0101343; BBL: 1019570001) is at 71-111 Convent Avenue, in New York City, New York 10027. Its coordinates are 40.81546, -73.95291 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is M223 (OECID: 0101343; BBL: 1019570001) and when was it built?
M223 (OECID: 0101343; BBL: 1019570001) has 25,360 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1938 as its year built. It is classed as K-12 school.
Is M223 (OECID: 0101343; BBL: 1019570001) 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, “M223 (OECID: 0101343; BBL: 1019570001), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/m223-oecid-0101343-bbl-1019570001-abcd3588 (data as of October 2, 2026).