Brooklyn Excelsior Charter School
K-12 School in New York City, NY · 856 Quincy Street · 11221
At a glance
Brooklyn Excelsior Charter School is a 55,627-square-foot K-12 school at 856 Quincy Street in New York City, New York, built in 2003. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 21 out of 100 (grade D), a site energy-use intensity of 73.4 kBtu/ft² and 358 tCO₂e of greenhouse-gas emissions. That score is higher than 9% 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 | 21 (band D) |
| Site EUI | 73.4 kBtu/ft² |
| Source EUI | 148.7 kBtu/ft² |
| GHG emissions | 358 tCO₂e |
| GHG intensity | 6.4 kgCO₂e/ft² |
| Electricity | 667,572 kWh |
| Natural gas | 18,064 therms |
| Gross floor area | 55,627 sq ft |
| Source record | nyc:2947162:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 21 | -16 | 73.4 kBtu/ft² | 358 tCO₂e |
| 2023 | 37 | -2 | 63.0 kBtu/ft² | 288 tCO₂e |
| 2022 | 39 | 69.7 kBtu/ft² | 264 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
- 856 Quincy Street
- City
- New York City
- State
- New York
- ZIP
- 11221
- Coordinates
- 40.68984, -73.92551
Within ~1 km
Nearby benchmarked buildings
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- BUSHWICK II (GROUPS B & D)score 75
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- BUSHWICK II CDA (GROUP E)score 75
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K-12 School · 211,200 sq ft
See also: most efficient in New York City · biggest emitters
How does Brooklyn Excelsior Charter 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. Brooklyn Excelsior Charter School's ENERGY STAR score of 21 compares with an average of 64 across the 2,052 that report a score; it scores higher than 9% of them and lower than 90%. Its site EUI of 73.4 kBtu/ft² is about 20% 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 34% above the group average of 4.8 kgCO₂e/ft².
At 55,627 sq ft, it is about half of the average floor area of 101,338 sq ft for those buildings. It was built in 2003, 50 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 Brooklyn Excelsior Charter School's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Brooklyn Excelsior Charter School, covering report years 2022–2024. Its ENERGY STAR score went from 39 in 2022 to 21 in 2024 (-18 points); its best year on file was 2022, at 39. Site EUI moved from 69.7 kBtu/ft² (2022) to 73.4 kBtu/ft² (2024), an 5% increase. Reported emissions went from 264 tCO₂e to 358 tCO₂e over the same span (up 36%).
What does an ENERGY STAR score of 21 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 21 means the building performs better than about 21% of its national peers. BuildingCensus bands the score into report-card grades; 21 falls in band D — lowest band (1–54). It sits 54 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. Brooklyn Excelsior Charter School's 73.4 kBtu/ft² across 55,627 sq ft works out to about 4.1 billion Btu (1,197 MWh-equivalent) in 2024. Its source EUI of 148.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 667,572 kWh of electricity and 18,064 therms of natural gas for the year.
Which law requires Brooklyn Excelsior Charter School to report its energy use?
Brooklyn Excelsior Charter 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:2947162:2024). 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
- M661 (OECID: 0100185; BBL: 1009210064)· 55,260 sq ft · score 64 (C)
- K137 (OECID: 0300144; BBL: 3015100001)· 55,200 sq ft · score 80 (B)
- K806 (OECID: 0301919; BBL: 3001740001)· 55,200 sq ft · score 98 (A)
- M495 (OECID: 0100128; BBL: 1016540033)· 55,200 sq ft · score 87 (A)
- 0203 - Holy Family - School· 55,171 sq ft
- X097 (OECID: 0200139; BBL: 2044740001)· 55,080 sq ft · score 61 (C)
- 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 Brooklyn Excelsior Charter School's energy grade?
Brooklyn Excelsior Charter School scores 21 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 Brooklyn Excelsior Charter School use?
Its 2024 site energy-use intensity was 73.4 kBtu/ft² (148.7 kBtu/ft² source) across 55,627 sq ft, including 667,572 kWh of electricity and 18,064 therms of natural gas.
What are Brooklyn Excelsior Charter School's carbon emissions?
Brooklyn Excelsior Charter School reported 358 tCO₂e of greenhouse-gas emissions (6.4 kgCO₂e/ft²) for 2024.
Where is Brooklyn Excelsior Charter School?
Brooklyn Excelsior Charter School is at 856 Quincy Street, in New York City, New York 11221. Its coordinates are 40.68984, -73.92551 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Brooklyn Excelsior Charter School and when was it built?
Brooklyn Excelsior Charter School has 55,627 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2003 as its year built. It is classed as K-12 school.
Is Brooklyn Excelsior Charter 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, “Brooklyn Excelsior Charter School, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/brooklyn-excelsior-charter-school-113bddfb (data as of October 2, 2026).