18 East 50th Street
Office in New York City, NY · 18 E 50th Street · 10022
At a glance
18 East 50th Street is a 62,775-square-foot office building at 18 E 50th Street in New York City, New York, built in 1915. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 80 out of 100 (grade B), a site energy-use intensity of 52.0 kBtu/ft² and 288 tCO₂e of greenhouse-gas emissions. That score is higher than 52% 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 | 80 (band B) |
| Site EUI | 52.0 kBtu/ft² |
| Source EUI | 99.6 kBtu/ft² |
| GHG emissions | 288 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 427,463 kWh |
| Gross floor area | 62,775 sq ft |
| Source record | nyc:7139908:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 80 | +12 | 52.0 kBtu/ft² | 288 tCO₂e |
| 2023 | 68 | +1 | 56.9 kBtu/ft² | 307 tCO₂e |
| 2022 | 67 | 61.0 kBtu/ft² | 273 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 E 50th Street
- City
- New York City
- State
- New York
- ZIP
- 10022
- Coordinates
- 40.75814, -73.97627
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 18 East 50th 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 East 50th Street's ENERGY STAR score of 80 compares with an average of 72 across the 2,519 that report a score; it scores higher than 52% of them and lower than 46%. Its site EUI of 52.0 kBtu/ft² is about 19% 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 4.6 kgCO₂e/ft² is about 21% below the group average of 5.8 kgCO₂e/ft².
At 62,775 sq ft, it is about 69% below the average floor area of 205,440 sq ft for those buildings. It was built in 1915, 25 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 18 East 50th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 18 East 50th Street, covering report years 2022–2024. Its ENERGY STAR score went from 67 in 2022 to 80 in 2024 (+13 points). Site EUI moved from 61.0 kBtu/ft² (2022) to 52.0 kBtu/ft² (2024), a 15% decrease. Reported emissions went from 273 tCO₂e to 288 tCO₂e over the same span (up 6%).
What does an ENERGY STAR score of 80 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 80 means the building performs better than about 80% of its national peers. BuildingCensus bands the score into report-card grades; 80 falls in band B — above median (70–84). 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. 18 East 50th Street's 52.0 kBtu/ft² across 62,775 sq ft works out to about 3.3 billion Btu (957 MWh-equivalent) in 2024. Its source EUI of 99.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 427,463 kWh of electricity for the year.
Which law requires 18 East 50th Street to report its energy use?
18 East 50th 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:7139908:2024). 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
- MS.19 E 98TH ST· 62,755 sq ft · EUI 12.7 kBtu/ft²
- 145 West 28 Street, LLC· 62,730 sq ft · score 89 (A)
- 89 Fifth Avenue· 62,700 sq ft · score 81 (B)
- 724 Fifth Avenue· 62,648 sq ft · score 30 (D)
- 410 Madison Avenue· 62,644 sq ft · score 26 (D)
- 315 West 35th Street· 62,632 sq ft · score 79 (B)
- 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 East 50th Street's energy grade?
18 East 50th Street scores 80 out of 100 on ENERGY STAR — band B, above median (70–84) — 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 East 50th Street use?
Its 2024 site energy-use intensity was 52.0 kBtu/ft² (99.6 kBtu/ft² source) across 62,775 sq ft, including 427,463 kWh of electricity.
What are 18 East 50th Street's carbon emissions?
18 East 50th Street reported 288 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 2024.
Where is 18 East 50th Street?
18 East 50th Street is at 18 E 50th Street, in New York City, New York 10022. Its coordinates are 40.75814, -73.97627 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 18 East 50th Street and when was it built?
18 East 50th Street has 62,775 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1915 as its year built. It is classed as office.
Is 18 East 50th 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 East 50th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/18-east-50th-street-f53148ff (data as of October 2, 2026).