151 West 46 Street
Office in New York City, NY · 10036
At a glance
151 West 46 Street is a 61,160-square-foot office building in New York City, New York, built in 1928. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 14 out of 100 (grade D), a site energy-use intensity of 149.0 kBtu/ft² and 764 tCO₂e of greenhouse-gas emissions. That score is higher than 4% 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 | 14 (band D) |
| Site EUI | 149.0 kBtu/ft² |
| Source EUI | 300.4 kBtu/ft² |
| GHG emissions | 764 tCO₂e |
| GHG intensity | 12.5 kgCO₂e/ft² |
| Electricity | 1,474,336 kWh |
| Natural gas | 40,850 therms |
| Gross floor area | 61,160 sq ft |
| Source record | nyc:20642944:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 14 | -11 | 149.0 kBtu/ft² | 764 tCO₂e |
| 2022 | 25 | 153.4 kBtu/ft² | 670 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
- 151 West 46 Street
- City
- New York City
- State
- New York
- ZIP
- 10036
- Coordinates
- 40.75800, -73.98367
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 151 West 46 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. 151 West 46 Street's ENERGY STAR score of 14 compares with an average of 72 across the 2,519 that report a score; it scores higher than 4% of them and lower than 95%. Its site EUI of 149.0 kBtu/ft² is about 131% 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 12.5 kgCO₂e/ft² is about twice the group average of 5.8 kgCO₂e/ft².
At 61,160 sq ft, it is about 70% below the average floor area of 205,440 sq ft for those buildings. It was built in 1928, 12 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 151 West 46 Street's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 151 West 46 Street, covering report years 2022–2023. Its ENERGY STAR score went from 25 in 2022 to 14 in 2023 (-11 points); its best year on file was 2022, at 25. Site EUI moved from 153.4 kBtu/ft² (2022) to 149.0 kBtu/ft² (2023), a 3% decrease. Reported emissions went from 670 tCO₂e to 764 tCO₂e over the same span (up 14%).
What does an ENERGY STAR score of 14 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 14 means the building performs better than about 14% of its national peers. BuildingCensus bands the score into report-card grades; 14 falls in band D — lowest band (1–54). It sits 61 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. 151 West 46 Street's 149.0 kBtu/ft² across 61,160 sq ft works out to about 9.1 billion Btu (2,671 MWh-equivalent) in 2023. Its source EUI of 300.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,474,336 kWh of electricity and 40,850 therms of natural gas for the year.
Which law requires 151 West 46 Street to report its energy use?
151 West 46 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:20642944:2023). 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.
More office buildings in New York City
- 145 Americas Condominium: 145 6 AVENUE· 61,152 sq ft · score 87 (A)
- 936 Broadway· 61,147 sq ft · EUI 70.1 kBtu/ft²
- Dawning Real Estate: 181 Bay St· 61,138 sq ft · score 80 (B)
- EBMG LLC - 300 West 43 Street· 61,095 sq ft · EUI 92.8 kBtu/ft²
- Rutgers Church Campus - Parent Profile· 61,073 sq ft
- 420 West 45th(p)· 61,000 sq ft · EUI 65.8 kBtu/ft²
- 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 151 West 46 Street's energy grade?
151 West 46 Street scores 14 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 151 West 46 Street use?
Its 2023 site energy-use intensity was 149.0 kBtu/ft² (300.4 kBtu/ft² source) across 61,160 sq ft, including 1,474,336 kWh of electricity and 40,850 therms of natural gas.
What are 151 West 46 Street's carbon emissions?
151 West 46 Street reported 764 tCO₂e of greenhouse-gas emissions (12.5 kgCO₂e/ft²) for 2023.
Where is 151 West 46 Street?
151 West 46 Street is in New York City, New York 10036. Its coordinates are 40.75800, -73.98367 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 151 West 46 Street and when was it built?
151 West 46 Street has 61,160 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1928 as its year built. It is classed as office.
Is 151 West 46 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, “151 West 46 Street, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/151-west-46-street-fd853d65 (data as of October 2, 2026).