Sky Tower Holding LLC
Multifamily Housing in New York City, NY · 47-30/50 59 street · 11377
At a glance
Sky Tower Holding LLC is a 239,190-square-foot multifamily housing building at 47-30/50 59 street in New York City, New York, built in 1970. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 81 out of 100 (grade B), a site energy-use intensity of 71.8 kBtu/ft² and 1,163 tCO₂e of greenhouse-gas emissions. That score is higher than 64% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 81 (band B) |
| Site EUI | 71.8 kBtu/ft² |
| Source EUI | 107.8 kBtu/ft² |
| GHG emissions | 1,163 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 1,296,240 kWh |
| Natural gas | 125,549 therms |
| Water use | 15,061 kgal |
| Gross floor area | 239,190 sq ft |
| Source record | nyc:2953476:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 81 | +11 | 71.8 kBtu/ft² | 1,163 tCO₂e |
| 2022 | 70 | 85.1 kBtu/ft² | 1,233 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 47-30/50 59 street
- City
- New York City
- State
- New York
- ZIP
- 11377
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in New York City · biggest emitters
How does Sky Tower Holding LLC compare with other multifamily housing buildings in New York City?
The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. Sky Tower Holding LLC's ENERGY STAR score of 81 compares with an average of 63 across the 22,829 that report a score; it scores higher than 64% of them and lower than 34%. Its site EUI of 71.8 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.9 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 239,190 sq ft, it is about 137% above the average floor area of 100,951 sq ft for those buildings. It was built in 1970, 18 years later than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Sky Tower Holding LLC's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Sky Tower Holding LLC, covering report years 2022–2023. Its ENERGY STAR score went from 70 in 2022 to 81 in 2023 (+11 points). Site EUI moved from 85.1 kBtu/ft² (2022) to 71.8 kBtu/ft² (2023), a 16% decrease. Reported emissions went from 1,233 tCO₂e to 1,163 tCO₂e over the same span (down 6%).
What does an ENERGY STAR score of 81 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 81 means the building performs better than about 81% of its national peers. BuildingCensus bands the score into report-card grades; 81 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. Sky Tower Holding LLC's 71.8 kBtu/ft² across 239,190 sq ft works out to about 17.2 billion Btu (5,033 MWh-equivalent) in 2023. Its source EUI of 107.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,296,240 kWh of electricity, 125,549 therms of natural gas and 15,061 thousand gallons of water for the year.
Which law requires Sky Tower Holding LLC to report its energy use?
Sky Tower Holding 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 2023 disclosure (source record nyc:2953476:2023). 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 multifamily housing buildings in New York City
- DEPM 1982 - 212 West 72nd Street· 239,081 sq ft · score 40 (D)
- ROOSEVELT I (SITES 4-5) - 3015980001· 239,000 sq ft · EUI 20.0 kBtu/ft²
- Henry Phipps Plaza South (BIN: 1078833)· 238,979 sq ft
- Ceylon_98-15 Horace Harding Expressway· 238,931 sq ft · score 22 (D)
- DEPM 1464 - 515 East 79th St· 238,833 sq ft · score 47 (D)
- Clason Point Gardens Bldgs 1-30· 238,800 sq ft · EUI 187.5 kBtu/ft²
- Multifamily Housing buildings in New York City· 33,022 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 Sky Tower Holding LLC's energy grade?
Sky Tower Holding LLC scores 81 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 Sky Tower Holding LLC use?
Its 2023 site energy-use intensity was 71.8 kBtu/ft² (107.8 kBtu/ft² source) across 239,190 sq ft, including 1,296,240 kWh of electricity and 125,549 therms of natural gas.
What are Sky Tower Holding LLC's carbon emissions?
Sky Tower Holding LLC reported 1,163 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2023.
Where is Sky Tower Holding LLC?
Sky Tower Holding LLC is at 47-30/50 59 street, in New York City, New York 11377.
How big is Sky Tower Holding LLC and when was it built?
Sky Tower Holding LLC has 239,190 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1970 as its year built. It is classed as multifamily housing.
Is Sky Tower Holding LLC 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).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Sky Tower Holding LLC, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/sky-tower-holding-llc-a7139102 (data as of October 2, 2026).