263 West 34th St
Office in New York City, NY · 10001
At a glance
263 West 34th St is a 35,111-square-foot office building in New York City, New York, built in 2018. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 11 out of 100 (grade D), a site energy-use intensity of 85.9 kBtu/ft² and 347 tCO₂e of greenhouse-gas emissions. That score is higher than 3% 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 | 11 (band D) |
| Site EUI | 85.9 kBtu/ft² |
| Source EUI | 240.5 kBtu/ft² |
| GHG emissions | 347 tCO₂e |
| GHG intensity | 9.9 kgCO₂e/ft² |
| Electricity | 883,736 kWh |
| Natural gas | 1 therms |
| Gross floor area | 35,111 sq ft |
| Source record | nyc:47530392:2024 |
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
- 263 West 34th St
- City
- New York City
- State
- New York
- ZIP
- 10001
- Coordinates
- 40.75188, -73.99270
Within ~1 km
Nearby benchmarked buildings
- Hudson Yards Cogen Campusscore —
Other · 7,739,076 sq ft
- Manhattan Westscore —
Other · 4,153,954 sq ft
- 20-30 Hudson Yardsscore —
Office · 3,810,623 sq ft
- Penn Southscore 95
Multifamily Housing · 3,391,963 sq ft
- 50 Hudson Yardsscore 76
Office · 2,944,455 sq ft
- ESRT - Empire State Buildingscore 78
Office · 2,852,257 sq ft
See also: most efficient in New York City · biggest emitters
How does 263 West 34th 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. 263 West 34th St's ENERGY STAR score of 11 compares with an average of 72 across the 2,519 that report a score; it scores higher than 3% of them and lower than 96%. Its site EUI of 85.9 kBtu/ft² is about 33% 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 9.9 kgCO₂e/ft² is about 70% above the group average of 5.8 kgCO₂e/ft².
At 35,111 sq ft, it is about 83% below the average floor area of 205,440 sq ft for those buildings. It was built in 2018, 78 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.
What does an ENERGY STAR score of 11 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 11 means the building performs better than about 11% of its national peers. BuildingCensus bands the score into report-card grades; 11 falls in band D — lowest band (1–54). It sits 64 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. 263 West 34th St's 85.9 kBtu/ft² across 35,111 sq ft works out to about 3 billion Btu (884 MWh-equivalent) in 2024. Its source EUI of 240.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 883,736 kWh of electricity and 1 therms of natural gas for the year.
Which law requires 263 West 34th St to report its energy use?
263 West 34th 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:47530392:2024). 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
- 37 West 17th Street· 35,000 sq ft
- TMG - 37 West 17th Street· 35,000 sq ft
- 256 W 36th St· 35,000 sq ft · score 90 (A)
- WSM - 256 West 36th Street· 35,000 sq ft · score 90 (A)
- 860 Courtlandt Avenue· 35,000 sq ft · score 87 (A)
- 116-06 Myrtle Avenue· 35,000 sq ft · score 83 (B)
- 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 263 West 34th St's energy grade?
263 West 34th St scores 11 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 263 West 34th St use?
Its 2024 site energy-use intensity was 85.9 kBtu/ft² (240.5 kBtu/ft² source) across 35,111 sq ft, including 883,736 kWh of electricity and 1 therms of natural gas.
What are 263 West 34th St's carbon emissions?
263 West 34th St reported 347 tCO₂e of greenhouse-gas emissions (9.9 kgCO₂e/ft²) for 2024.
Where is 263 West 34th St?
263 West 34th St is in New York City, New York 10001. Its coordinates are 40.75188, -73.99270 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 263 West 34th St and when was it built?
263 West 34th St has 35,111 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2018 as its year built. It is classed as office.
Is 263 West 34th 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).
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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, “263 West 34th St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/263-west-34th-st-78a59bcc (data as of October 2, 2026).