Mount Sinai Doctors - 55 East 34th Street
Medical Office in New York City, NY · 55 East 34th Street · 10016
At a glance
Mount Sinai Doctors - 55 East 34th Street is a 48,355-square-foot medical office in New York City, New York, built in 1951. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 46 out of 100 (grade D), a site energy-use intensity of 90.9 kBtu/ft² and 444 tCO₂e of greenhouse-gas emissions. That score is higher than 26% of the 147 scored medical office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 46 (band D) |
| Site EUI | 90.9 kBtu/ft² |
| Source EUI | 206.2 kBtu/ft² |
| GHG emissions | 444 tCO₂e |
| GHG intensity | 9.2 kgCO₂e/ft² |
| Electricity | 903,217 kWh |
| Natural gas | 3,930 therms |
| Gross floor area | 48,355 sq ft |
| Source record | nyc:10718858:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 46 | -5 | 90.9 kBtu/ft² | 444 tCO₂e |
| 2023 | 51 | +6 | 79.0 kBtu/ft² | 349 tCO₂e |
| 2022 | 45 | 85.9 kBtu/ft² | 300 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 55 East 34th Street
- City
- New York City
- State
- New York
- ZIP
- 10016
- Coordinates
- 40.74751, -73.98233
Within ~1 km
Nearby benchmarked buildings
Hospital (General Medical & Surgical) · 3,532,083 sq ft
- Metlife Building (200 Park)score 69
Office · 2,993,388 sq ft
- ESRT - Empire State Buildingscore 78
Office · 2,852,257 sq ft
- One Bryant Parkscore 62
Financial Office · 2,237,686 sq ft
- 11 Madison Avenuescore 77
Office · 2,228,574 sq ft
- One Vanderbilt Avenuescore 43
Office · 1,828,353 sq ft
See also: most efficient in New York City · biggest emitters
How does Mount Sinai Doctors - 55 East 34th Street compare with other medical office buildings in New York City?
The latest disclosures cover 188 medical office buildings in New York City, out of 48,310 buildings citywide. Mount Sinai Doctors - 55 East 34th Street's ENERGY STAR score of 46 compares with an average of 65 across the 147 that report a score; it scores higher than 26% of them and lower than 72%. Its site EUI of 90.9 kBtu/ft² is roughly in line with the average of 97.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 9.2 kgCO₂e/ft² is roughly in line with the group average of 8.8 kgCO₂e/ft².
At 48,355 sq ft, it is about 36% below the average floor area of 75,019 sq ft for those buildings. It was built in 1951, 14 years earlier than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 1,266 medical office buildings average an ENERGY STAR score of 64 and a site EUI of 92.2 kBtu/ft².
How has Mount Sinai Doctors - 55 East 34th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Mount Sinai Doctors - 55 East 34th Street, covering report years 2022–2024. Its ENERGY STAR score went from 45 in 2022 to 46 in 2024 (+1 points); its best year on file was 2023, at 51. Site EUI moved from 85.9 kBtu/ft² (2022) to 90.9 kBtu/ft² (2024), an 6% increase. Reported emissions went from 300 tCO₂e to 444 tCO₂e over the same span (up 48%).
What does an ENERGY STAR score of 46 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 46 means the building performs better than about 46% of its national peers. BuildingCensus bands the score into report-card grades; 46 falls in band D — lowest band (1–54). It sits 29 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. Mount Sinai Doctors - 55 East 34th Street's 90.9 kBtu/ft² across 48,355 sq ft works out to about 4.4 billion Btu (1,288 MWh-equivalent) in 2024. Its source EUI of 206.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 903,217 kWh of electricity and 3,930 therms of natural gas for the year.
Which law requires Mount Sinai Doctors - 55 East 34th Street to report its energy use?
Mount Sinai Doctors - 55 East 34th 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:10718858:2024). 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 medical office buildings in New York City
- 23-03 BROADWAY· 48,018 sq ft · score 94 (A)
- 217 Grand Street· 47,552 sq ft · EUI 52.8 kBtu/ft²
- Emblem - Atlantic Avenue· 47,265 sq ft · score 43 (D)
- ICL: 2581 Atlantic Ave· 47,240 sq ft · EUI 78.9 kBtu/ft²
- Blake Christopher NY LLC· 47,235 sq ft · score 79 (B)
- 355 WEST 52 STREET· 45,665 sq ft · score 91 (A)
- Medical Office buildings in New York City· 188 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 Mount Sinai Doctors - 55 East 34th Street's energy grade?
Mount Sinai Doctors - 55 East 34th Street scores 46 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 Mount Sinai Doctors - 55 East 34th Street use?
Its 2024 site energy-use intensity was 90.9 kBtu/ft² (206.2 kBtu/ft² source) across 48,355 sq ft, including 903,217 kWh of electricity and 3,930 therms of natural gas.
What are Mount Sinai Doctors - 55 East 34th Street's carbon emissions?
Mount Sinai Doctors - 55 East 34th Street reported 444 tCO₂e of greenhouse-gas emissions (9.2 kgCO₂e/ft²) for 2024.
Where is Mount Sinai Doctors - 55 East 34th Street?
Mount Sinai Doctors - 55 East 34th Street is in New York City, New York 10016. Its coordinates are 40.74751, -73.98233 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Mount Sinai Doctors - 55 East 34th Street and when was it built?
Mount Sinai Doctors - 55 East 34th Street has 48,355 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1951 as its year built. It is classed as medical office.
Is Mount Sinai Doctors - 55 East 34th 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).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Mount Sinai Doctors - 55 East 34th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/mount-sinai-doctors-55-east-34th-street-cf4d8dd5 (data as of October 2, 2026).