15 West 34 St
Office in New York City, NY · 15 West 34 Street · 10001
At a glance
15 West 34 St is a 59,833-square-foot office building at 15 West 34 Street in New York City, New York, built in 1907. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 85 out of 100 (grade A), a site energy-use intensity of 40.0 kBtu/ft² and 239 tCO₂e of greenhouse-gas emissions. That score is higher than 63% 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 | 85 (band A) |
| Site EUI | 40.0 kBtu/ft² |
| Source EUI | 94.7 kBtu/ft² |
| GHG emissions | 239 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 527,572 kWh |
| Natural gas | 5,941 therms |
| Water use | 867 kgal |
| Gross floor area | 59,833 sq ft |
| Source record | nyc:12067730:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 85 | -2 | 40.0 kBtu/ft² | 239 tCO₂e |
| 2023 | 87 | +11 | 37.4 kBtu/ft² | 214 tCO₂e |
| 2022 | 76 | 57.1 kBtu/ft² | 240 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
- 15 West 34 Street
- City
- New York City
- State
- New York
- ZIP
- 10001
- Coordinates
- 40.74889, -73.98561
Within ~1 km
Nearby benchmarked buildings
- ESRT - Empire State Buildingscore 78
Office · 2,852,257 sq ft
- PENN 1 (LL97)score —
Office · 2,488,353 sq ft
- PENN 1 (Offices)score —
Office · 2,439,745 sq ft
- One Bryant Parkscore 62
Financial Office · 2,237,686 sq ft
- 11 Madison Avenuescore 77
Office · 2,228,574 sq ft
- (71003A) Herald Square Macy'sscore 70
Retail Store · 2,192,088 sq ft
See also: most efficient in New York City · biggest emitters
How does 15 West 34 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. 15 West 34 St's ENERGY STAR score of 85 compares with an average of 72 across the 2,519 that report a score; it scores higher than 63% of them and lower than 35%. Its site EUI of 40.0 kBtu/ft² is about 38% 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 4.0 kgCO₂e/ft² is about 31% below the group average of 5.8 kgCO₂e/ft².
At 59,833 sq ft, it is about 71% below the average floor area of 205,440 sq ft for those buildings. It was built in 1907, 33 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 15 West 34 St's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 15 West 34 St, covering report years 2022–2024. Its ENERGY STAR score went from 76 in 2022 to 85 in 2024 (+9 points); its best year on file was 2023, at 87. Site EUI moved from 57.1 kBtu/ft² (2022) to 40.0 kBtu/ft² (2024), a 30% decrease. Reported emissions went from 240 tCO₂e to 239 tCO₂e over the same span (down 1%).
What does an ENERGY STAR score of 85 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 85 means the building performs better than about 85% of its national peers. BuildingCensus bands the score into report-card grades; 85 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. 15 West 34 St's 40.0 kBtu/ft² across 59,833 sq ft works out to about 2.4 billion Btu (701 MWh-equivalent) in 2024. Its source EUI of 94.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 527,572 kWh of electricity, 5,941 therms of natural gas and 867 thousand gallons of water for the year.
Which law requires 15 West 34 St to report its energy use?
15 West 34 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:12067730:2024). 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
- Buchbinder: 5 East 16th St· 59,812 sq ft · score 97 (A)
- ABS - 19 West 36th St· 59,800 sq ft · score 61 (C)
- 300 Lafayette Street· 59,757 sq ft · score 75 (B)
- National Energy Cost Services Inc:2700 EASTCHESTER ROAD· 59,714 sq ft · score 83 (B)
- National Energy Cost Services Inc:2700 EASTCHESTER ROAD· 59,714 sq ft · score 87 (A)
- JSRE: 550 5th Ave.· 59,684 sq ft · score 22 (D)
- 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 15 West 34 St's energy grade?
15 West 34 St scores 85 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 15 West 34 St use?
Its 2024 site energy-use intensity was 40.0 kBtu/ft² (94.7 kBtu/ft² source) across 59,833 sq ft, including 527,572 kWh of electricity and 5,941 therms of natural gas.
What are 15 West 34 St's carbon emissions?
15 West 34 St reported 239 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 2024.
Where is 15 West 34 St?
15 West 34 St is at 15 West 34 Street, in New York City, New York 10001. Its coordinates are 40.74889, -73.98561 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 15 West 34 St and when was it built?
15 West 34 St has 59,833 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1907 as its year built. It is classed as office.
Is 15 West 34 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, “15 West 34 St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/15-west-34-st-280a6baf (data as of October 2, 2026).