K655 (OECID: 0300345; BBL: 3001920013)
K-12 School in New York City, NY · 345 Dean Street · 11217
At a glance
K655 (OECID: 0300345; BBL: 3001920013) is a 154,800-square-foot K-12 school at 345 Dean Street in New York City, New York, built in 1929. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 92 out of 100 (grade A), a site energy-use intensity of 56.7 kBtu/ft² and 625 tCO₂e of greenhouse-gas emissions. That score is higher than 86% 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 | 92 (band A) |
| Site EUI | 56.7 kBtu/ft² |
| Source EUI | 85.7 kBtu/ft² |
| GHG emissions | 625 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 682,513 kWh |
| Natural gas | 57,732 therms |
| Water use | 972 kgal |
| Gross floor area | 154,800 sq ft |
| Source record | nyc:1633163:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 92 | ±0 | 56.7 kBtu/ft² | 625 tCO₂e |
| 2023 | 92 | +8 | 55.5 kBtu/ft² | 594 tCO₂e |
| 2022 | 84 | 75.8 kBtu/ft² | 737 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
- 345 Dean Street
- City
- New York City
- State
- New York
- ZIP
- 11217
- Coordinates
- 40.68356, -73.98027
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does K655 (OECID: 0300345; BBL: 3001920013) 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. K655 (OECID: 0300345; BBL: 3001920013)'s ENERGY STAR score of 92 compares with an average of 64 across the 2,052 that report a score; it scores higher than 86% of them and lower than 12%. Its site EUI of 56.7 kBtu/ft² is roughly in line with 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 4.0 kgCO₂e/ft² is about 16% below the group average of 4.8 kgCO₂e/ft².
At 154,800 sq ft, it is about 53% above the average floor area of 101,338 sq ft for those buildings. It was built in 1929, 24 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.
How has K655 (OECID: 0300345; BBL: 3001920013)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for K655 (OECID: 0300345; BBL: 3001920013), covering report years 2022–2024. Its ENERGY STAR score went from 84 in 2022 to 92 in 2024 (+8 points); its best year on file was 2023, at 92. Site EUI moved from 75.8 kBtu/ft² (2022) to 56.7 kBtu/ft² (2024), a 25% decrease. Reported emissions went from 737 tCO₂e to 625 tCO₂e over the same span (down 15%).
What does an ENERGY STAR score of 92 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 92 means the building performs better than about 92% of its national peers. BuildingCensus bands the score into report-card grades; 92 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. K655 (OECID: 0300345; BBL: 3001920013)'s 56.7 kBtu/ft² across 154,800 sq ft works out to about 8.8 billion Btu (2,572 MWh-equivalent) in 2024. Its source EUI of 85.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 682,513 kWh of electricity, 57,732 therms of natural gas and 972 thousand gallons of water for the year.
Which law requires K655 (OECID: 0300345; BBL: 3001920013) to report its energy use?
K655 (OECID: 0300345; BBL: 3001920013) 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:1633163:2024). 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
- Benchmarking Group - 98· 154,164 sq ft · score 63 (C)
- Benchmarking Group - 165· 154,132 sq ft · score 87 (A)
- X970 (OECID: 0201346; BBL: 2029130001)· 154,000 sq ft · score 19 (D)
- DOE_7705_X127· 153,725 sq ft · score 64 (C)
- DOE_7291_Q194· 153,725 sq ft · score 90 (A)
- K259 (OECID: 0300263; BBL: 3059230001)· 153,600 sq ft · score 28 (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 K655 (OECID: 0300345; BBL: 3001920013)'s energy grade?
K655 (OECID: 0300345; BBL: 3001920013) scores 92 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 K655 (OECID: 0300345; BBL: 3001920013) use?
Its 2024 site energy-use intensity was 56.7 kBtu/ft² (85.7 kBtu/ft² source) across 154,800 sq ft, including 682,513 kWh of electricity and 57,732 therms of natural gas.
What are K655 (OECID: 0300345; BBL: 3001920013)'s carbon emissions?
K655 (OECID: 0300345; BBL: 3001920013) reported 625 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 2024.
Where is K655 (OECID: 0300345; BBL: 3001920013)?
K655 (OECID: 0300345; BBL: 3001920013) is at 345 Dean Street, in New York City, New York 11217. Its coordinates are 40.68356, -73.98027 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is K655 (OECID: 0300345; BBL: 3001920013) and when was it built?
K655 (OECID: 0300345; BBL: 3001920013) has 154,800 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1929 as its year built. It is classed as K-12 school.
Is K655 (OECID: 0300345; BBL: 3001920013) 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, “K655 (OECID: 0300345; BBL: 3001920013), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/k655-oecid-0300345-bbl-3001920013-891994e5 (data as of October 2, 2026).