Skyline Developers - 20 West 55th St
Office in New York City, NY · 20 West 55th St · 10019
At a glance
Skyline Developers - 20 West 55th St is a 75,000-square-foot office building in New York City, New York, built in 1920. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 21 out of 100 (grade D), a site energy-use intensity of 114.7 kBtu/ft² and 848 tCO₂e of greenhouse-gas emissions. That score is higher than 6% 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 | 21 (band D) |
| Site EUI | 114.7 kBtu/ft² |
| Source EUI | 262.9 kBtu/ft² |
| GHG emissions | 848 tCO₂e |
| GHG intensity | 11.3 kgCO₂e/ft² |
| Electricity | 1,747,619 kWh |
| Natural gas | 9,996 therms |
| Gross floor area | 75,000 sq ft |
| Source record | nyc:31555665:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 21 | -7 | 114.7 kBtu/ft² | 848 tCO₂e |
| 2023 | 28 | 101.5 kBtu/ft² | 717 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
- 20 West 55th St
- City
- New York City
- State
- New York
- ZIP
- 10019
- Coordinates
- 40.76204, -73.97583
Within ~1 km
Nearby benchmarked buildings
Office · 8,053,115 sq ft
- Metlife Building (200 Park)score 69
Office · 2,993,388 sq ft
Office · 2,862,565 sq ft
Mixed Use Property · 2,797,249 sq ft
Mixed Use Property · 2,797,249 sq ft
Mixed Use Property · 2,797,249 sq ft
See also: most efficient in New York City · biggest emitters
How does Skyline Developers - 20 West 55th St 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. Skyline Developers - 20 West 55th St's ENERGY STAR score of 21 compares with an average of 72 across the 2,519 that report a score; it scores higher than 6% of them and lower than 94%. Its site EUI of 114.7 kBtu/ft² is about 78% above the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 11.3 kgCO₂e/ft² is about twice the group average of 5.8 kgCO₂e/ft².
At 75,000 sq ft, it is about 63% below the average floor area of 205,440 sq ft for those buildings. It was built in 1920, 20 years earlier 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 Skyline Developers - 20 West 55th St's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Skyline Developers - 20 West 55th St, covering report years 2023–2024. Its ENERGY STAR score went from 28 in 2023 to 21 in 2024 (-7 points); its best year on file was 2023, at 28. Site EUI moved from 101.5 kBtu/ft² (2023) to 114.7 kBtu/ft² (2024), an 13% increase. Reported emissions went from 717 tCO₂e to 848 tCO₂e over the same span (up 18%).
What does an ENERGY STAR score of 21 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 21 means the building performs better than about 21% of its national peers. BuildingCensus bands the score into report-card grades; 21 falls in band D — lowest band (1–54). It sits 54 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. Skyline Developers - 20 West 55th St's 114.7 kBtu/ft² across 75,000 sq ft works out to about 8.6 billion Btu (2,521 MWh-equivalent) in 2024. Its source EUI of 262.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,747,619 kWh of electricity and 9,996 therms of natural gas for the year.
Which law requires Skyline Developers - 20 West 55th St to report its energy use?
Skyline Developers - 20 West 55th 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 2024 disclosure (source record nyc:31555665:2024). 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
- 34 East 51st Street· 74,986 sq ft · score 57 (C)
- Dew Seven: 45-51 West 21 St· 74,900 sq ft · score 85 (A)
- 101 GILA REALTY INC.: 236 Richmond Valley· 74,761 sq ft · score 92 (A)
- Jem: 384 East 149th Street· 74,665 sq ft · score 89 (A)
- 29 West Manager, LLC· 74,494 sq ft · score 87 (A)
- Livingston Management Services - 29 W 30th St - 1008320024· 74,494 sq ft · score 87 (A)
- 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 Skyline Developers - 20 West 55th St's energy grade?
Skyline Developers - 20 West 55th St scores 21 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 Skyline Developers - 20 West 55th St use?
Its 2024 site energy-use intensity was 114.7 kBtu/ft² (262.9 kBtu/ft² source) across 75,000 sq ft, including 1,747,619 kWh of electricity and 9,996 therms of natural gas.
What are Skyline Developers - 20 West 55th St's carbon emissions?
Skyline Developers - 20 West 55th St reported 848 tCO₂e of greenhouse-gas emissions (11.3 kgCO₂e/ft²) for 2024.
Where is Skyline Developers - 20 West 55th St?
Skyline Developers - 20 West 55th St is in New York City, New York 10019. Its coordinates are 40.76204, -73.97583 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Skyline Developers - 20 West 55th St and when was it built?
Skyline Developers - 20 West 55th St has 75,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1920 as its year built. It is classed as office.
Is Skyline Developers - 20 West 55th St 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).
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, “Skyline Developers - 20 West 55th St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/skyline-developers-20-west-55th-st-9b9512e9 (data as of October 2, 2026).