15 West 47 Street
Office in New York City, NY · 10036
At a glance
15 West 47 Street is a 120,790-square-foot office building in New York City, New York, built in 1926. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 73 out of 100 (grade B), a site energy-use intensity of 51.3 kBtu/ft² and 674 tCO₂e of greenhouse-gas emissions. That score is higher than 39% 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 | 73 (band B) |
| Site EUI | 51.3 kBtu/ft² |
| Source EUI | 143.6 kBtu/ft² |
| GHG emissions | 674 tCO₂e |
| GHG intensity | 5.6 kgCO₂e/ft² |
| Electricity | 1,815,436 kWh |
| Water use | 1,118 kgal |
| Gross floor area | 120,790 sq ft |
| Source record | nyc:20642940:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 73 | +1 | 51.3 kBtu/ft² | 674 tCO₂e |
| 2022 | 72 | 53.1 kBtu/ft² | 543 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 47 Street
- City
- New York City
- State
- New York
- ZIP
- 10036
- Coordinates
- 40.75700, -73.97937
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 15 West 47 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. 15 West 47 Street's ENERGY STAR score of 73 compares with an average of 72 across the 2,519 that report a score; it scores higher than 39% of them and lower than 59%. Its site EUI of 51.3 kBtu/ft² is about 20% 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 5.6 kgCO₂e/ft² is roughly in line with the group average of 5.8 kgCO₂e/ft².
At 120,790 sq ft, it is about 41% below the average floor area of 205,440 sq ft for those buildings. It was built in 1926, 14 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 47 Street's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 15 West 47 Street, covering report years 2022–2023. Its ENERGY STAR score went from 72 in 2022 to 73 in 2023 (+1 points). Site EUI moved from 53.1 kBtu/ft² (2022) to 51.3 kBtu/ft² (2023), a 3% decrease. Reported emissions went from 543 tCO₂e to 674 tCO₂e over the same span (up 24%).
What does an ENERGY STAR score of 73 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 73 means the building performs better than about 73% of its national peers. BuildingCensus bands the score into report-card grades; 73 falls in band B — above median (70–84). It sits 2 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. 15 West 47 Street's 51.3 kBtu/ft² across 120,790 sq ft works out to about 6.2 billion Btu (1,816 MWh-equivalent) in 2023. Its source EUI of 143.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,815,436 kWh of electricity and 1,118 thousand gallons of water for the year.
Which law requires 15 West 47 Street to report its energy use?
15 West 47 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 2023 disclosure (source record nyc:20642940:2023). 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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- Office buildings in New York City· 3,384 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is 15 West 47 Street's energy grade?
15 West 47 Street scores 73 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 15 West 47 Street use?
Its 2023 site energy-use intensity was 51.3 kBtu/ft² (143.6 kBtu/ft² source) across 120,790 sq ft, including 1,815,436 kWh of electricity.
What are 15 West 47 Street's carbon emissions?
15 West 47 Street reported 674 tCO₂e of greenhouse-gas emissions (5.6 kgCO₂e/ft²) for 2023.
Where is 15 West 47 Street?
15 West 47 Street is in New York City, New York 10036. Its coordinates are 40.75700, -73.97937 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 15 West 47 Street and when was it built?
15 West 47 Street has 120,790 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1926 as its year built. It is classed as office.
Is 15 West 47 Street 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, “15 West 47 Street, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/15-west-47-street-750d5af7 (data as of October 2, 2026).