540 West 235th Street
Office in New York City, NY · 10463
At a glance
540 West 235th Street is a 29,703-square-foot office building in New York City, New York, built in 1955. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D), a site energy-use intensity of 307.8 kBtu/ft² and 869 tCO₂e of greenhouse-gas emissions. That score is higher than 0% 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 | 1 (band D) |
| Site EUI | 307.8 kBtu/ft² |
| Source EUI | 688.0 kBtu/ft² |
| GHG emissions | 869 tCO₂e |
| GHG intensity | 29.3 kgCO₂e/ft² |
| Electricity | 1,814,654 kWh |
| Natural gas | 29,511 therms |
| Gross floor area | 29,703 sq ft |
| Source record | nyc:6793647:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 1 | ±0 | 307.8 kBtu/ft² | 869 tCO₂e |
| 2023 | 1 | ±0 | 350.1 kBtu/ft² | 882 tCO₂e |
| 2022 | 1 | 275.5 kBtu/ft² | 582 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
- 540 West 235th Street
- City
- New York City
- State
- New York
- ZIP
- 10463
- Coordinates
- 40.88550, -73.90918
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 540 West 235th 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. 540 West 235th Street's ENERGY STAR score of 1 compares with an average of 72 across the 2,519 that report a score; it scores higher than 0% of them and lower than 99%. Its site EUI of 307.8 kBtu/ft² is about 377% 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 29.3 kgCO₂e/ft² is about 405% above the group average of 5.8 kgCO₂e/ft².
At 29,703 sq ft, it is about 86% below the average floor area of 205,440 sq ft for those buildings. It was built in 1955, 15 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.
How has 540 West 235th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 540 West 235th Street, covering report years 2022–2024. Its ENERGY STAR score was 1 in both 2022 and 2024. Site EUI moved from 275.5 kBtu/ft² (2022) to 307.8 kBtu/ft² (2024), an 12% increase. Reported emissions went from 582 tCO₂e to 869 tCO₂e over the same span (up 49%).
What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 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. 540 West 235th Street's 307.8 kBtu/ft² across 29,703 sq ft works out to about 9.1 billion Btu (2,679 MWh-equivalent) in 2024. Its source EUI of 688.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,814,654 kWh of electricity and 29,511 therms of natural gas for the year.
Which law requires 540 West 235th Street to report its energy use?
540 West 235th 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:6793647:2024). 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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- 64 Holding· 29,606 sq ft · score 68 (C)
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- Dawning: 215 Bay Street· 29,564 sq ft · score 52 (D)
- Esquire: 1522 Ralph Ave· 29,558 sq ft · score 84 (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 540 West 235th Street's energy grade?
540 West 235th Street scores 1 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 540 West 235th Street use?
Its 2024 site energy-use intensity was 307.8 kBtu/ft² (688.0 kBtu/ft² source) across 29,703 sq ft, including 1,814,654 kWh of electricity and 29,511 therms of natural gas.
What are 540 West 235th Street's carbon emissions?
540 West 235th Street reported 869 tCO₂e of greenhouse-gas emissions (29.3 kgCO₂e/ft²) for 2024.
Where is 540 West 235th Street?
540 West 235th Street is in New York City, New York 10463. Its coordinates are 40.88550, -73.90918 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 540 West 235th Street and when was it built?
540 West 235th Street has 29,703 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1955 as its year built. It is classed as office.
Is 540 West 235th 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, “540 West 235th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/540-west-235th-street-f4bb5c7a (data as of October 2, 2026).