229 West 43rd Street
Office in New York City, NY · 229 W 43rd St · 10036
At a glance
229 West 43rd Street is a 682,843-square-foot office building at 229 W 43rd St in New York City, New York, built in 1913. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 73.8 kBtu/ft² and 4,746 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 73.8 kBtu/ft² |
| Source EUI | 158.2 kBtu/ft² |
| GHG emissions | 4,746 tCO₂e |
| GHG intensity | 7.0 kgCO₂e/ft² |
| Electricity | 8,844,888 kWh |
| Natural gas | 52,829 therms |
| Water use | 10,339 kgal |
| Gross floor area | 682,843 sq ft |
| Source record | nyc:3070619:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 73.8 kBtu/ft² | 4,746 tCO₂e | |
| 2023 | — | 70.6 kBtu/ft² | 4,355 tCO₂e | |
| 2022 | — | 79.3 kBtu/ft² | 4,063 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
- 229 W 43rd St
- City
- New York City
- State
- New York
- ZIP
- 10036
- Coordinates
- 40.75714, -73.98745
Within ~1 km
Nearby benchmarked buildings
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- 1251 Avenue of the Americasscore 77
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- One Bryant Parkscore 62
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See also: most efficient in New York City · biggest emitters
How does 229 West 43rd 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 73.8 kBtu/ft² is about 14% 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 7.0 kgCO₂e/ft² is about 20% above the group average of 5.8 kgCO₂e/ft².
At 682,843 sq ft, it is about 232% above the average floor area of 205,440 sq ft for those buildings. It was built in 1913, 27 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 229 West 43rd Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 229 West 43rd Street, covering report years 2022–2024. Site EUI moved from 79.3 kBtu/ft² (2022) to 73.8 kBtu/ft² (2024), a 7% decrease. Reported emissions went from 4,063 tCO₂e to 4,746 tCO₂e over the same span (up 17%).
What does a site EUI of 73.8 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. 229 West 43rd Street's 73.8 kBtu/ft² across 682,843 sq ft works out to about 50.4 billion Btu (14,769 MWh-equivalent) in 2024. Its source EUI of 158.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 8,844,888 kWh of electricity, 52,829 therms of natural gas and 10,339 thousand gallons of water for the year.
Which law requires 229 West 43rd Street to report its energy use?
229 West 43rd 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:3070619:2024). 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.
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- 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 229 West 43rd Street's energy grade?
229 West 43rd Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 73.8 kBtu/ft².
How much energy does 229 West 43rd Street use?
Its 2024 site energy-use intensity was 73.8 kBtu/ft² (158.2 kBtu/ft² source) across 682,843 sq ft, including 8,844,888 kWh of electricity and 52,829 therms of natural gas.
What are 229 West 43rd Street's carbon emissions?
229 West 43rd Street reported 4,746 tCO₂e of greenhouse-gas emissions (7.0 kgCO₂e/ft²) for 2024.
Where is 229 West 43rd Street?
229 West 43rd Street is at 229 W 43rd St, in New York City, New York 10036. Its coordinates are 40.75714, -73.98745 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 229 West 43rd Street and when was it built?
229 West 43rd Street has 682,843 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1913 as its year built. It is classed as office.
Is 229 West 43rd 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, “229 West 43rd Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/229-west-43rd-street-35a10f67 (data as of October 2, 2026).