X423 (OECID: 0201527; BBL: 2038640012)
K-12 School in New York City, NY · 1551 East 172 Street · 10472
At a glance
X423 (OECID: 0201527; BBL: 2038640012) is a 121,200-square-foot K-12 school at 1551 East 172 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 8 out of 100 (grade D), a site energy-use intensity of 119.6 kBtu/ft² and 1,308 tCO₂e of greenhouse-gas emissions. That score is higher than 4% 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 | 8 (band D) |
| Site EUI | 119.6 kBtu/ft² |
| Source EUI | 251.0 kBtu/ft² |
| GHG emissions | 1,308 tCO₂e |
| GHG intensity | 10.8 kgCO₂e/ft² |
| Electricity | 2,544,241 kWh |
| Natural gas | 58,187 therms |
| Gross floor area | 121,200 sq ft |
| Source record | nyc:6935980:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 8 | ±0 | 119.6 kBtu/ft² | 1,308 tCO₂e |
| 2023 | 8 | +3 | 109.5 kBtu/ft² | 1,186 tCO₂e |
| 2022 | 5 | 123.6 kBtu/ft² | 1,113 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
- 1551 East 172 Street
- City
- New York City
- State
- New York
- ZIP
- 10472
- Coordinates
- 40.83142, -73.87779
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does X423 (OECID: 0201527; BBL: 2038640012) 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. X423 (OECID: 0201527; BBL: 2038640012)'s ENERGY STAR score of 8 compares with an average of 64 across the 2,052 that report a score; it scores higher than 4% of them and lower than 96%. Its site EUI of 119.6 kBtu/ft² is about twice 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 10.8 kgCO₂e/ft² is about 125% above the group average of 4.8 kgCO₂e/ft².
At 121,200 sq ft, it is about 20% above 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 X423 (OECID: 0201527; BBL: 2038640012)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for X423 (OECID: 0201527; BBL: 2038640012), covering report years 2022–2024. Its ENERGY STAR score went from 5 in 2022 to 8 in 2024 (+3 points); its best year on file was 2023, at 8. Site EUI moved from 123.6 kBtu/ft² (2022) to 119.6 kBtu/ft² (2024), a 3% decrease. Reported emissions went from 1,113 tCO₂e to 1,308 tCO₂e over the same span (up 18%).
What does an ENERGY STAR score of 8 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 8 means the building performs better than about 8% of its national peers. BuildingCensus bands the score into report-card grades; 8 falls in band D — lowest band (1–54). It sits 67 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. X423 (OECID: 0201527; BBL: 2038640012)'s 119.6 kBtu/ft² across 121,200 sq ft works out to about 14.5 billion Btu (4,248 MWh-equivalent) in 2024. Its source EUI of 251.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,544,241 kWh of electricity and 58,187 therms of natural gas for the year.
Which law requires X423 (OECID: 0201527; BBL: 2038640012) to report its energy use?
X423 (OECID: 0201527; BBL: 2038640012) 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:6935980:2024). 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
- Q058 (OECID: 0401459; BBL: 4028020001)· 121,000 sq ft · score 71 (B)
- Q050 (OECID: 0400045; BBL: 4100240012)· 120,984 sq ft · score 5 (D)
- M868 (OECID: 0101752; BBL: 1008420034)· 120,473 sq ft · score 38 (D)
- Q135 (OECID: 0400121; BBL: 4105820016)· 120,125 sq ft · score 56 (C)
- Q722 (OECID: 0401256; BBL: 4018730050)· 120,000 sq ft · score 84 (B)
- K001, K881 (OECID: 0300029; BBL: 3007550022)· 120,000 sq ft · score 71 (B)
- 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 X423 (OECID: 0201527; BBL: 2038640012)'s energy grade?
X423 (OECID: 0201527; BBL: 2038640012) scores 8 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 X423 (OECID: 0201527; BBL: 2038640012) use?
Its 2024 site energy-use intensity was 119.6 kBtu/ft² (251.0 kBtu/ft² source) across 121,200 sq ft, including 2,544,241 kWh of electricity and 58,187 therms of natural gas.
What are X423 (OECID: 0201527; BBL: 2038640012)'s carbon emissions?
X423 (OECID: 0201527; BBL: 2038640012) reported 1,308 tCO₂e of greenhouse-gas emissions (10.8 kgCO₂e/ft²) for 2024.
Where is X423 (OECID: 0201527; BBL: 2038640012)?
X423 (OECID: 0201527; BBL: 2038640012) is at 1551 East 172 Street, in New York City, New York 10472. Its coordinates are 40.83142, -73.87779 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is X423 (OECID: 0201527; BBL: 2038640012) and when was it built?
X423 (OECID: 0201527; BBL: 2038640012) has 121,200 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 X423 (OECID: 0201527; BBL: 2038640012) 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, “X423 (OECID: 0201527; BBL: 2038640012), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/x423-oecid-0201527-bbl-2038640012-66a9eaf3 (data as of October 2, 2026).