K729 (OECID: 0301801; BBL: 3078600017)
K-12 School in New York City, NY · 3874 Flatlands Avenue · 11234
At a glance
K729 (OECID: 0301801; BBL: 3078600017) is a 36,000-square-foot K-12 school at 3874 Flatlands Avenue in New York City, New York, built in 2000. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 84 out of 100 (grade B), a site energy-use intensity of 38.1 kBtu/ft² and 125 tCO₂e of greenhouse-gas emissions. That score is higher than 74% 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 | 84 (band B) |
| Site EUI | 38.1 kBtu/ft² |
| Source EUI | 71.6 kBtu/ft² |
| GHG emissions | 125 tCO₂e |
| GHG intensity | 3.5 kgCO₂e/ft² |
| Electricity | 195,405 kWh |
| Water use | 1 kgal |
| Gross floor area | 36,000 sq ft |
| Source record | nyc:3241235:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 84 | +5 | 38.1 kBtu/ft² | 125 tCO₂e |
| 2022 | 79 | 47.9 kBtu/ft² | 135 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
- 3874 Flatlands Avenue
- City
- New York City
- State
- New York
- ZIP
- 11234
- Coordinates
- 40.62033, -73.93674
Within ~1 km
Nearby benchmarked buildings
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- 4149-4155 Kings Highwayscore 83
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See also: most efficient in New York City · biggest emitters
How does K729 (OECID: 0301801; BBL: 3078600017) 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. K729 (OECID: 0301801; BBL: 3078600017)'s ENERGY STAR score of 84 compares with an average of 64 across the 2,052 that report a score; it scores higher than 74% of them and lower than 25%. Its site EUI of 38.1 kBtu/ft² is about 38% below 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 3.5 kgCO₂e/ft² is about 27% below the group average of 4.8 kgCO₂e/ft².
At 36,000 sq ft, it is about 64% below the average floor area of 101,338 sq ft for those buildings. It was built in 2000, 47 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 K729 (OECID: 0301801; BBL: 3078600017)'s energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for K729 (OECID: 0301801; BBL: 3078600017), covering report years 2022–2023. Its ENERGY STAR score went from 79 in 2022 to 84 in 2023 (+5 points). Site EUI moved from 47.9 kBtu/ft² (2022) to 38.1 kBtu/ft² (2023), a 20% decrease. Reported emissions went from 135 tCO₂e to 125 tCO₂e over the same span (down 8%).
What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 falls in band B — above median (70–84). 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. K729 (OECID: 0301801; BBL: 3078600017)'s 38.1 kBtu/ft² across 36,000 sq ft works out to about 1.4 billion Btu (402 MWh-equivalent) in 2023. Its source EUI of 71.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 195,405 kWh of electricity and 1 thousand gallons of water for the year.
Which law requires K729 (OECID: 0301801; BBL: 3078600017) to report its energy use?
K729 (OECID: 0301801; BBL: 3078600017) 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:3241235:2023). 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
- Yeshiva School· 35,900 sq ft · score 35 (D)
- United Talmudical 212 Williamsburg St E· 35,788 sq ft · score 98 (A)
- Mary McDowell - 20 Bergen Street· 35,767 sq ft · score 80 (B)
- 923 Quentin Road· 35,758 sq ft · score 95 (A)
- 923 Quentin Road· 35,758 sq ft · score 84 (B)
- 7914 BAY PARKWAY· 35,600 sq ft · score 73 (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 K729 (OECID: 0301801; BBL: 3078600017)'s energy grade?
K729 (OECID: 0301801; BBL: 3078600017) scores 84 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does K729 (OECID: 0301801; BBL: 3078600017) use?
Its 2023 site energy-use intensity was 38.1 kBtu/ft² (71.6 kBtu/ft² source) across 36,000 sq ft, including 195,405 kWh of electricity.
What are K729 (OECID: 0301801; BBL: 3078600017)'s carbon emissions?
K729 (OECID: 0301801; BBL: 3078600017) reported 125 tCO₂e of greenhouse-gas emissions (3.5 kgCO₂e/ft²) for 2023.
Where is K729 (OECID: 0301801; BBL: 3078600017)?
K729 (OECID: 0301801; BBL: 3078600017) is at 3874 Flatlands Avenue, in New York City, New York 11234. Its coordinates are 40.62033, -73.93674 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is K729 (OECID: 0301801; BBL: 3078600017) and when was it built?
K729 (OECID: 0301801; BBL: 3078600017) has 36,000 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2000 as its year built. It is classed as K-12 school.
Is K729 (OECID: 0301801; BBL: 3078600017) 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, “K729 (OECID: 0301801; BBL: 3078600017), New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/k729-oecid-0301801-bbl-3078600017-b7984c35 (data as of October 2, 2026).