X229 (OECID: 0200253; BBL: 2028820130)
K-12 School in New York City, NY · 275 Harlem River Park Bridge · 10453
At a glance
X229 (OECID: 0200253; BBL: 2028820130) is a 186,000-square-foot K-12 school at 275 Harlem River Park Bridge in New York City, New York, built in 1977. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 29 out of 100 (grade D), a site energy-use intensity of 69.3 kBtu/ft² and 1,252 tCO₂e of greenhouse-gas emissions. That score is higher than 13% of the 2,052 scored K-12 school buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 29 (band D) |
| Site EUI | 69.3 kBtu/ft² |
| Source EUI | 152.2 kBtu/ft² |
| GHG emissions | 1,252 tCO₂e |
| GHG intensity | 6.7 kgCO₂e/ft² |
| Electricity | 2,501,008 kWh |
| Natural gas | 2 therms |
| Gross floor area | 186,000 sq ft |
| Source record | nyc:1836474:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 29 | +4 | 69.3 kBtu/ft² | 1,252 tCO₂e |
| 2022 | 25 | 82.5 kBtu/ft² | 1,232 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
- 275 Harlem River Park Bridge
- City
- New York City
- State
- New York
- ZIP
- 10453
- Coordinates
- 40.85254, -73.92147
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does X229 (OECID: 0200253; BBL: 2028820130) 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. X229 (OECID: 0200253; BBL: 2028820130)'s ENERGY STAR score of 29 compares with an average of 64 across the 2,052 that report a score; it scores higher than 13% of them and lower than 86%. Its site EUI of 69.3 kBtu/ft² is about 13% 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 6.7 kgCO₂e/ft² is about 40% above the group average of 4.8 kgCO₂e/ft².
At 186,000 sq ft, it is about 84% above the average floor area of 101,338 sq ft for those buildings. It was built in 1977, 24 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 X229 (OECID: 0200253; BBL: 2028820130)'s energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for X229 (OECID: 0200253; BBL: 2028820130), covering report years 2022–2023. Its ENERGY STAR score went from 25 in 2022 to 29 in 2023 (+4 points). Site EUI moved from 82.5 kBtu/ft² (2022) to 69.3 kBtu/ft² (2023), a 16% decrease. Reported emissions went from 1,232 tCO₂e to 1,252 tCO₂e over the same span (up 2%).
What does an ENERGY STAR score of 29 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 29 means the building performs better than about 29% of its national peers. BuildingCensus bands the score into report-card grades; 29 falls in band D — lowest band (1–54). It sits 46 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. X229 (OECID: 0200253; BBL: 2028820130)'s 69.3 kBtu/ft² across 186,000 sq ft works out to about 12.9 billion Btu (3,778 MWh-equivalent) in 2023. Its source EUI of 152.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,501,008 kWh of electricity and 2 therms of natural gas for the year.
Which law requires X229 (OECID: 0200253; BBL: 2028820130) to report its energy use?
X229 (OECID: 0200253; BBL: 2028820130) 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 2023 disclosure (source record nyc:1836474:2023). 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
- Benchmarking Group - 97· 185,377 sq ft · score 86 (A)
- RCS - Upper School· 185,332 sq ft · score 82 (B)
- Benchmarking Group - 147· 185,207 sq ft · score 87 (A)
- DOE_7708_X131· 184,975 sq ft · score 87 (A)
- Q237 (OECID: 0400247; BBL: 4051470001)· 184,975 sq ft · score 95 (A)
- DOE_6535_K068· 184,800 sq ft · score 87 (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 X229 (OECID: 0200253; BBL: 2028820130)'s energy grade?
X229 (OECID: 0200253; BBL: 2028820130) scores 29 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does X229 (OECID: 0200253; BBL: 2028820130) use?
Its 2023 site energy-use intensity was 69.3 kBtu/ft² (152.2 kBtu/ft² source) across 186,000 sq ft, including 2,501,008 kWh of electricity and 2 therms of natural gas.
What are X229 (OECID: 0200253; BBL: 2028820130)'s carbon emissions?
X229 (OECID: 0200253; BBL: 2028820130) reported 1,252 tCO₂e of greenhouse-gas emissions (6.7 kgCO₂e/ft²) for 2023.
Where is X229 (OECID: 0200253; BBL: 2028820130)?
X229 (OECID: 0200253; BBL: 2028820130) is at 275 Harlem River Park Bridge, in New York City, New York 10453. Its coordinates are 40.85254, -73.92147 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is X229 (OECID: 0200253; BBL: 2028820130) and when was it built?
X229 (OECID: 0200253; BBL: 2028820130) has 186,000 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1977 as its year built. It is classed as K-12 school.
Is X229 (OECID: 0200253; BBL: 2028820130) covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “X229 (OECID: 0200253; BBL: 2028820130), New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/x229-oecid-0200253-bbl-2028820130-8b4fcbd5 (data as of October 2, 2026).