Castillo East LLC
Office in New York City, NY · 1515 Southern Boulevard · 10460
At a glance
Castillo East LLC is a 31,325-square-foot office building at 1515 Southern Boulevard in New York City, New York, built in 1996. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 54 out of 100 (grade D), a site energy-use intensity of 66.7 kBtu/ft² and 192 tCO₂e of greenhouse-gas emissions. That score is higher than 19% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 54 (band D) |
| Site EUI | 66.7 kBtu/ft² |
| Source EUI | 143.5 kBtu/ft² |
| GHG emissions | 192 tCO₂e |
| GHG intensity | 6.1 kgCO₂e/ft² |
| Electricity | 385,571 kWh |
| Natural gas | 7,730 therms |
| Water use | 422 kgal |
| Gross floor area | 31,325 sq ft |
| Source record | nyc:6794284:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 54 | +45 | 66.7 kBtu/ft² | 192 tCO₂e |
| 2023 | 9 | +1 | 80.5 kBtu/ft² | 197 tCO₂e |
| 2022 | 8 | 88.5 kBtu/ft² | 165 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
- 1515 Southern Boulevard
- City
- New York City
- State
- New York
- ZIP
- 10460
- Coordinates
- 40.83373, -73.88993
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Castillo East LLC compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. Castillo East LLC's ENERGY STAR score of 54 compares with an average of 72 across the 2,519 that report a score; it scores higher than 19% of them and lower than 81%. Its site EUI of 66.7 kBtu/ft² is roughly in line with the average of 64.5 kBtu/ft². Its emissions intensity of 6.1 kgCO₂e/ft² is roughly in line with the group average of 5.8 kgCO₂e/ft².
At 31,325 sq ft, it is about 85% below the average floor area of 205,440 sq ft for those buildings. It was built in 1996, 56 years later than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Castillo East LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Castillo East LLC, covering report years 2022–2024. Its ENERGY STAR score went from 8 in 2022 to 54 in 2024 (+46 points). Site EUI moved from 88.5 kBtu/ft² (2022) to 66.7 kBtu/ft² (2024), a 25% decrease. Reported emissions went from 165 tCO₂e to 192 tCO₂e over the same span (up 17%).
What does an ENERGY STAR score of 54 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 54 means the building performs better than about 54% of its national peers. BuildingCensus bands the score into report-card grades; 54 falls in band D — lowest band (1–54). It sits 21 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. Castillo East LLC's 66.7 kBtu/ft² across 31,325 sq ft works out to about 2.1 billion Btu (612 MWh-equivalent) in 2024. Its source EUI of 143.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 385,571 kWh of electricity, 7,730 therms of natural gas and 422 thousand gallons of water for the year.
Which law requires Castillo East LLC to report its energy use?
Castillo East LLC 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:6794284:2024). 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 office buildings in New York City
- Garth: 157 East 86th St· 31,297 sq ft · EUI 125.2 kBtu/ft²
- Benchmarking Group - 128· 31,273 sq ft · EUI 80.1 kBtu/ft²
- SMA: 1491 3 Ave· 31,272 sq ft · score 1 (D)
- 320 Schermerhorn Street AKA 45 Nevins Street· 31,131 sq ft · score 25 (D)
- 226 East 54th Street· 31,105 sq ft · EUI 56.7 kBtu/ft²
- 226 East 54th Street· 31,105 sq ft · score 46 (D)
- Office buildings in New York City· 3,384 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 Castillo East LLC's energy grade?
Castillo East LLC scores 54 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 Castillo East LLC use?
Its 2024 site energy-use intensity was 66.7 kBtu/ft² (143.5 kBtu/ft² source) across 31,325 sq ft, including 385,571 kWh of electricity and 7,730 therms of natural gas.
What are Castillo East LLC's carbon emissions?
Castillo East LLC reported 192 tCO₂e of greenhouse-gas emissions (6.1 kgCO₂e/ft²) for 2024.
Where is Castillo East LLC?
Castillo East LLC is at 1515 Southern Boulevard, in New York City, New York 10460. Its coordinates are 40.83373, -73.88993 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Castillo East LLC and when was it built?
Castillo East LLC has 31,325 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1996 as its year built. It is classed as office.
Is Castillo East LLC 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, “Castillo East LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/castillo-east-llc-45710dba (data as of October 2, 2026).