Icon West 27 Street
Office in New York City, NY · 109 West 27th Street · 10001
At a glance
Icon West 27 Street is a 45,184-square-foot office building at 109 West 27th Street in New York City, New York, built in 1908. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 43.1 kBtu/ft² and 224 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 43.1 kBtu/ft² |
| Source EUI | 120.6 kBtu/ft² |
| GHG emissions | 224 tCO₂e |
| GHG intensity | 5.0 kgCO₂e/ft² |
| Electricity | 570,420 kWh |
| Natural gas | 0 therms |
| Water use | 480 kgal |
| Gross floor area | 45,184 sq ft |
| Source record | nyc:7435865:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 43.1 kBtu/ft² | 224 tCO₂e | |
| 2023 | 70 | -26 | 37.5 kBtu/ft² | 179 tCO₂e |
| 2022 | 96 | 20.2 kBtu/ft² | 71 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
- 109 West 27th Street
- City
- New York City
- State
- New York
- ZIP
- 10001
- Coordinates
- 40.74574, -73.99169
Within ~1 km
Nearby benchmarked buildings
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- ESRT - Empire State Buildingscore 78
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- PENN 1 (LL97)score —
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- PENN 1 (Offices)score —
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- 11 Madison Avenuescore 77
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See also: most efficient in New York City · biggest emitters
How does Icon West 27 Street 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. Its site EUI of 43.1 kBtu/ft² is about 33% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 5.0 kgCO₂e/ft² is about 14% below the group average of 5.8 kgCO₂e/ft².
At 45,184 sq ft, it is about 78% below the average floor area of 205,440 sq ft for those buildings. It was built in 1908, 32 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 Icon West 27 Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Icon West 27 Street, covering report years 2022–2024. Its ENERGY STAR score went from 96 in 2022 to 70 in 2023 (-26 points); its best year on file was 2022, at 96. Site EUI moved from 20.2 kBtu/ft² (2022) to 43.1 kBtu/ft² (2024), an 113% increase. Reported emissions went from 71 tCO₂e to 224 tCO₂e over the same span (up 218%).
What does a site EUI of 43.1 kBtu/ft² mean?
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. Icon West 27 Street's 43.1 kBtu/ft² across 45,184 sq ft works out to about 1.9 billion Btu (571 MWh-equivalent) in 2024. Its source EUI of 120.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 570,420 kWh of electricity, 0 therms of natural gas and 480 thousand gallons of water for the year.
Which law requires Icon West 27 Street to report its energy use?
Icon West 27 Street 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:7435865:2024). 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
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- 19-23 Bond Street· 45,163 sq ft · score 76 (B)
- 254 Canal St· 45,112 sq ft · score 75 (B)
- 373 Broadway· 45,006 sq ft · score 95 (A)
- Big Sue LLC· 45,000 sq ft · score 99 (A)
- 373 Broadway· 45,000 sq ft · score 94 (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 Icon West 27 Street's energy grade?
Icon West 27 Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 43.1 kBtu/ft².
How much energy does Icon West 27 Street use?
Its 2024 site energy-use intensity was 43.1 kBtu/ft² (120.6 kBtu/ft² source) across 45,184 sq ft, including 570,420 kWh of electricity and 0 therms of natural gas.
What are Icon West 27 Street's carbon emissions?
Icon West 27 Street reported 224 tCO₂e of greenhouse-gas emissions (5.0 kgCO₂e/ft²) for 2024.
Where is Icon West 27 Street?
Icon West 27 Street is at 109 West 27th Street, in New York City, New York 10001. Its coordinates are 40.74574, -73.99169 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Icon West 27 Street and when was it built?
Icon West 27 Street has 45,184 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1908 as its year built. It is classed as office.
Is Icon West 27 Street 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, “Icon West 27 Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/icon-west-27-street-13852ddb (data as of October 2, 2026).