528-534 WEST 39 LLC
Office in New York City, NY · 528 West 39th Street · 10018
At a glance
528-534 WEST 39 LLC is a 51,845-square-foot office building at 528 West 39th Street in New York City, New York, built in 1929. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 86 out of 100 (grade A), a site energy-use intensity of 69.1 kBtu/ft² and 276 tCO₂e of greenhouse-gas emissions. That score is higher than 65% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 86 (band A) |
| Site EUI | 69.1 kBtu/ft² |
| Source EUI | 124.4 kBtu/ft² |
| GHG emissions | 276 tCO₂e |
| GHG intensity | 5.3 kgCO₂e/ft² |
| Electricity | 450,568 kWh |
| Natural gas | 20,449 therms |
| Gross floor area | 51,845 sq ft |
| Source record | nyc:5765243:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 86 | +15 | 69.1 kBtu/ft² | 276 tCO₂e |
| 2022 | 71 | 89.9 kBtu/ft² | 320 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
- 528 West 39th Street
- City
- New York City
- State
- New York
- ZIP
- 10018
- Coordinates
- 40.75832, -73.99831
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
- 50 Hudson Yardsscore 76
Office · 2,944,455 sq ft
- The Spiral - 66 Hudson Boulevardscore 82
Office · 2,830,000 sq ft
- PENN 1 (LL97)score —
Office · 2,488,353 sq ft
See also: most efficient in New York City · biggest emitters
How does 528-534 WEST 39 LLC 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. 528-534 WEST 39 LLC's ENERGY STAR score of 86 compares with an average of 72 across the 2,519 that report a score; it scores higher than 65% of them and lower than 33%. Its site EUI of 69.1 kBtu/ft² is roughly in line with the average of 64.5 kBtu/ft². Its emissions intensity of 5.3 kgCO₂e/ft² is roughly in line with the group average of 5.8 kgCO₂e/ft².
At 51,845 sq ft, it is about 75% below the average floor area of 205,440 sq ft for those buildings. It was built in 1929, 11 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 528-534 WEST 39 LLC's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 528-534 WEST 39 LLC, covering report years 2022–2023. Its ENERGY STAR score went from 71 in 2022 to 86 in 2023 (+15 points). Site EUI moved from 89.9 kBtu/ft² (2022) to 69.1 kBtu/ft² (2023), a 23% decrease. Reported emissions went from 320 tCO₂e to 276 tCO₂e over the same span (down 14%).
What does an ENERGY STAR score of 86 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 86 means the building performs better than about 86% of its national peers. BuildingCensus bands the score into report-card grades; 86 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 528-534 WEST 39 LLC's 69.1 kBtu/ft² across 51,845 sq ft works out to about 3.6 billion Btu (1,050 MWh-equivalent) in 2023. Its source EUI of 124.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 450,568 kWh of electricity and 20,449 therms of natural gas for the year.
Which law requires 528-534 WEST 39 LLC to report its energy use?
528-534 WEST 39 LLC 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 2023 disclosure (source record nyc:5765243:2023). 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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- All New York City benchmarked buildings· Local Law 84 (LL84)
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- Biggest emitters in New York City
Frequently asked questions
What is 528-534 WEST 39 LLC's energy grade?
528-534 WEST 39 LLC scores 86 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 528-534 WEST 39 LLC use?
Its 2023 site energy-use intensity was 69.1 kBtu/ft² (124.4 kBtu/ft² source) across 51,845 sq ft, including 450,568 kWh of electricity and 20,449 therms of natural gas.
What are 528-534 WEST 39 LLC's carbon emissions?
528-534 WEST 39 LLC reported 276 tCO₂e of greenhouse-gas emissions (5.3 kgCO₂e/ft²) for 2023.
Where is 528-534 WEST 39 LLC?
528-534 WEST 39 LLC is at 528 West 39th Street, in New York City, New York 10018. Its coordinates are 40.75832, -73.99831 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 528-534 WEST 39 LLC and when was it built?
528-534 WEST 39 LLC has 51,845 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1929 as its year built. It is classed as office.
Is 528-534 WEST 39 LLC covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “528-534 WEST 39 LLC, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/528-534-west-39-llc-b90d8b6d (data as of October 2, 2026).