15 WEST REALTY ASSOCIATES, LLC.
Office in New York City, NY · 15 WEST 46th STREET · 10036
At a glance
15 WEST REALTY ASSOCIATES, LLC. is a 26,000-square-foot office building at 15 WEST 46th STREET in New York City, New York, built in 1920. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 60 out of 100 (grade C), a site energy-use intensity of 101.3 kBtu/ft² and 230 tCO₂e of greenhouse-gas emissions. That score is higher than 23% 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 | 60 (band C) |
| Site EUI | 101.3 kBtu/ft² |
| Source EUI | 215.5 kBtu/ft² |
| GHG emissions | 230 tCO₂e |
| GHG intensity | 8.8 kgCO₂e/ft² |
| Electricity | 474,912 kWh |
| Natural gas | 10,144 therms |
| Water use | 4,700 kgal |
| Gross floor area | 26,000 sq ft |
| Source record | nyc:12444994:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 60 | -1 | 101.3 kBtu/ft² | 230 tCO₂e |
| 2022 | 61 | 98.9 kBtu/ft² | 188 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 46th STREET
- City
- New York City
- State
- New York
- ZIP
- 10036
- Coordinates
- 40.75638, -73.97983
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 15 WEST REALTY ASSOCIATES, 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. 15 WEST REALTY ASSOCIATES, LLC.'s ENERGY STAR score of 60 compares with an average of 72 across the 2,519 that report a score; it scores higher than 23% of them and lower than 75%. Its site EUI of 101.3 kBtu/ft² is about 57% 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 8.8 kgCO₂e/ft² is about 52% above the group average of 5.8 kgCO₂e/ft².
At 26,000 sq ft, it is about 87% below the average floor area of 205,440 sq ft for those buildings. It was built in 1920, 20 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 REALTY ASSOCIATES, LLC.'s energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 15 WEST REALTY ASSOCIATES, LLC., covering report years 2022–2023. Its ENERGY STAR score went from 61 in 2022 to 60 in 2023 (-1 points); its best year on file was 2022, at 61. Site EUI moved from 98.9 kBtu/ft² (2022) to 101.3 kBtu/ft² (2023), an 2% increase. Reported emissions went from 188 tCO₂e to 230 tCO₂e over the same span (up 23%).
What does an ENERGY STAR score of 60 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 60 means the building performs better than about 60% of its national peers. BuildingCensus bands the score into report-card grades; 60 falls in band C — below median (55–69). It sits 15 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 REALTY ASSOCIATES, LLC.'s 101.3 kBtu/ft² across 26,000 sq ft works out to about 2.6 billion Btu (772 MWh-equivalent) in 2023. Its source EUI of 215.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 474,912 kWh of electricity, 10,144 therms of natural gas and 4,700 thousand gallons of water for the year.
Which law requires 15 WEST REALTY ASSOCIATES, LLC. to report its energy use?
15 WEST REALTY ASSOCIATES, 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:12444994:2023). 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
- Hyung Hyang Realty Corp - 45 West 29th st· 25,974 sq ft · EUI 65.2 kBtu/ft²
- Office, 63 Gansevoort Street· 25,963 sq ft · score 1 (D)
- Brooklyn Stages - 259 Green St· 25,957 sq ft · score 98 (A)
- 101 WATER STREET· 25,900 sq ft · score 28 (D)
- 60-62 East 11 Street· 25,894 sq ft · EUI 13.8 kBtu/ft²
- 15 West 46th Street· 25,877 sq ft · score 44 (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 REALTY ASSOCIATES, LLC.'s energy grade?
15 WEST REALTY ASSOCIATES, LLC. scores 60 out of 100 on ENERGY STAR — band C, below median (55–69) — 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 REALTY ASSOCIATES, LLC. use?
Its 2023 site energy-use intensity was 101.3 kBtu/ft² (215.5 kBtu/ft² source) across 26,000 sq ft, including 474,912 kWh of electricity and 10,144 therms of natural gas.
What are 15 WEST REALTY ASSOCIATES, LLC.'s carbon emissions?
15 WEST REALTY ASSOCIATES, LLC. reported 230 tCO₂e of greenhouse-gas emissions (8.8 kgCO₂e/ft²) for 2023.
Where is 15 WEST REALTY ASSOCIATES, LLC.?
15 WEST REALTY ASSOCIATES, LLC. is at 15 WEST 46th STREET, in New York City, New York 10036. Its coordinates are 40.75638, -73.97983 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 15 WEST REALTY ASSOCIATES, LLC. and when was it built?
15 WEST REALTY ASSOCIATES, LLC. has 26,000 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1920 as its year built. It is classed as office.
Is 15 WEST REALTY ASSOCIATES, 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, “15 WEST REALTY ASSOCIATES, LLC., New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/15-west-realty-associates-llc-71547050 (data as of October 2, 2026).