Rocklyn: 479 E 29th St
K-12 School in New York City, NY · 479 E 29th St · 11226
At a glance
Rocklyn: 479 E 29th St is a 51,360-square-foot K-12 school in New York City, New York, built in 1962. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 68 out of 100 (grade C), a site energy-use intensity of 43.7 kBtu/ft² and 182 tCO₂e of greenhouse-gas emissions. That score is higher than 47% 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 | 68 (band C) |
| Site EUI | 43.7 kBtu/ft² |
| Source EUI | 84.2 kBtu/ft² |
| GHG emissions | 182 tCO₂e |
| GHG intensity | 3.5 kgCO₂e/ft² |
| Electricity | 329,133 kWh |
| Natural gas | 11,215 therms |
| Water use | 1,194 kgal |
| Gross floor area | 51,360 sq ft |
| Source record | nyc:15365344:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 68 | -4 | 43.7 kBtu/ft² | 182 tCO₂e |
| 2022 | 72 | 46.0 kBtu/ft² | 160 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
- 479 E 29th St
- City
- New York City
- State
- New York
- ZIP
- 11226
- Coordinates
- 40.63880, -73.94925
Within ~1 km
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- 1351 New Yorkscore 12
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See also: most efficient in New York City · biggest emitters
How does Rocklyn: 479 E 29th St 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. Rocklyn: 479 E 29th St's ENERGY STAR score of 68 compares with an average of 64 across the 2,052 that report a score; it scores higher than 47% of them and lower than 51%. Its site EUI of 43.7 kBtu/ft² is about 29% 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 51,360 sq ft, it is about half of the average floor area of 101,338 sq ft for those buildings. It was built in 1962, 9 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 Rocklyn: 479 E 29th St's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Rocklyn: 479 E 29th St, covering report years 2022–2023. Its ENERGY STAR score went from 72 in 2022 to 68 in 2023 (-4 points); its best year on file was 2022, at 72. Site EUI moved from 46.0 kBtu/ft² (2022) to 43.7 kBtu/ft² (2023), a 5% decrease. Reported emissions went from 160 tCO₂e to 182 tCO₂e over the same span (up 13%).
What does an ENERGY STAR score of 68 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 68 means the building performs better than about 68% of its national peers. BuildingCensus bands the score into report-card grades; 68 falls in band C — below median (55–69). It sits 7 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. Rocklyn: 479 E 29th St's 43.7 kBtu/ft² across 51,360 sq ft works out to about 2.2 billion Btu (658 MWh-equivalent) in 2023. Its source EUI of 84.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 329,133 kWh of electricity, 11,215 therms of natural gas and 1,194 thousand gallons of water for the year.
Which law requires Rocklyn: 479 E 29th St to report its energy use?
Rocklyn: 479 E 29th St 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:15365344:2023). 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
- 301 East 105 Street/2050 Second Avenue· 51,267 sq ft · score 26 (D)
- X361 (OECID: 0201414; BBL: 2033560036)· 51,188 sq ft · score 53 (D)
- RAC HT 14-47 143 St· 51,098 sq ft · score 81 (B)
- K705, K407 (OECID: 0301832; BBL: 3075520054)· 51,096 sq ft · score 69 (C)
- 240-250 Jay Street· 51,026 sq ft · score 61 (C)
- United Lubavitch Yeshivoth· 51,000 sq ft · score 66 (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 Rocklyn: 479 E 29th St's energy grade?
Rocklyn: 479 E 29th St scores 68 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Rocklyn: 479 E 29th St use?
Its 2023 site energy-use intensity was 43.7 kBtu/ft² (84.2 kBtu/ft² source) across 51,360 sq ft, including 329,133 kWh of electricity and 11,215 therms of natural gas.
What are Rocklyn: 479 E 29th St's carbon emissions?
Rocklyn: 479 E 29th St reported 182 tCO₂e of greenhouse-gas emissions (3.5 kgCO₂e/ft²) for 2023.
Where is Rocklyn: 479 E 29th St?
Rocklyn: 479 E 29th St is in New York City, New York 11226. Its coordinates are 40.63880, -73.94925 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Rocklyn: 479 E 29th St and when was it built?
Rocklyn: 479 E 29th St has 51,360 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1962 as its year built. It is classed as K-12 school.
Is Rocklyn: 479 E 29th St 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, “Rocklyn: 479 E 29th St, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/rocklyn-479-e-29th-st-e5e435d2 (data as of October 2, 2026).