18-20 East 46th Street
Office in New York City, NY · 10017
At a glance
18-20 East 46th Street is a 87,016-square-foot office building in New York City, New York, built in 1958. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 53 out of 100 (grade D), a site energy-use intensity of 66.0 kBtu/ft² and 538 tCO₂e of greenhouse-gas emissions. That score is higher than 18% 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 | 53 (band D) |
| Site EUI | 66.0 kBtu/ft² |
| Source EUI | 145.0 kBtu/ft² |
| GHG emissions | 538 tCO₂e |
| GHG intensity | 6.2 kgCO₂e/ft² |
| Electricity | 1,103,046 kWh |
| Natural gas | 19,814 therms |
| Water use | 3,086 kgal |
| Gross floor area | 87,016 sq ft |
| Source record | nyc:25178308:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 53 | -10 | 66.0 kBtu/ft² | 538 tCO₂e |
| 2023 | 63 | +7 | 78.2 kBtu/ft² | 556 tCO₂e |
| 2022 | 56 | 91.2 kBtu/ft² | 541 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
- 18-20 East 46th Street
- City
- New York City
- State
- New York
- ZIP
- 10017
- Coordinates
- 40.75563, -73.97810
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 18-20 East 46th 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. 18-20 East 46th Street's ENERGY STAR score of 53 compares with an average of 72 across the 2,519 that report a score; it scores higher than 18% of them and lower than 81%. Its site EUI of 66.0 kBtu/ft² is roughly in line with the average of 64.5 kBtu/ft². Its emissions intensity of 6.2 kgCO₂e/ft² is roughly in line with the group average of 5.8 kgCO₂e/ft².
At 87,016 sq ft, it is about 58% below the average floor area of 205,440 sq ft for those buildings. It was built in 1958, 18 years later 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 18-20 East 46th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 18-20 East 46th Street, covering report years 2022–2024. Its ENERGY STAR score went from 56 in 2022 to 53 in 2024 (-3 points); its best year on file was 2023, at 63. Site EUI moved from 91.2 kBtu/ft² (2022) to 66.0 kBtu/ft² (2024), a 28% decrease. Reported emissions went from 541 tCO₂e to 538 tCO₂e over the same span (down 0%).
What does an ENERGY STAR score of 53 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 53 means the building performs better than about 53% of its national peers. BuildingCensus bands the score into report-card grades; 53 falls in band D — lowest band (1–54). It sits 22 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. 18-20 East 46th Street's 66.0 kBtu/ft² across 87,016 sq ft works out to about 5.7 billion Btu (1,683 MWh-equivalent) in 2024. Its source EUI of 145.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,103,046 kWh of electricity, 19,814 therms of natural gas and 3,086 thousand gallons of water for the year.
Which law requires 18-20 East 46th Street to report its energy use?
18-20 East 46th 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 2024 disclosure (source record nyc:25178308:2024). 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.
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- 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 18-20 East 46th Street's energy grade?
18-20 East 46th Street scores 53 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 18-20 East 46th Street use?
Its 2024 site energy-use intensity was 66.0 kBtu/ft² (145.0 kBtu/ft² source) across 87,016 sq ft, including 1,103,046 kWh of electricity and 19,814 therms of natural gas.
What are 18-20 East 46th Street's carbon emissions?
18-20 East 46th Street reported 538 tCO₂e of greenhouse-gas emissions (6.2 kgCO₂e/ft²) for 2024.
Where is 18-20 East 46th Street?
18-20 East 46th Street is in New York City, New York 10017. Its coordinates are 40.75563, -73.97810 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 18-20 East 46th Street and when was it built?
18-20 East 46th Street has 87,016 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1958 as its year built. It is classed as office.
Is 18-20 East 46th Street 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, “18-20 East 46th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/18-20-east-46th-street-98a705d1 (data as of October 2, 2026).