521 E 72nd St
Medical Office in New York City, NY · 521 East 72nd St · 10021
At a glance
521 E 72nd St is a 98,707-square-foot medical office at 521 East 72nd St in New York City, New York, built in 1916. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 58.0 kBtu/ft² and 657 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 58.0 kBtu/ft² |
| Source EUI | 161.9 kBtu/ft² |
| GHG emissions | 657 tCO₂e |
| GHG intensity | 6.7 kgCO₂e/ft² |
| Electricity | 1,668,443 kWh |
| Natural gas | 351 therms |
| Gross floor area | 98,707 sq ft |
| Source record | nyc:5036228:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 58.0 kBtu/ft² | 657 tCO₂e | |
| 2022 | — | 25.9 kBtu/ft² | 437 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
- 521 East 72nd St
- City
- New York City
- State
- New York
- ZIP
- 10021
- Coordinates
- 40.76638, -73.95262
Within ~1 km
Nearby benchmarked buildings
- NYP Cornell (East Campus)score 47
Hospital (General Medical & Surgical) · 2,801,795 sq ft
Other - Specialty Hospital · 2,490,355 sq ft
Mixed Use Property · 2,437,399 sq ft
- Weill Cornell Medical Centerscore —
Hospital (General Medical & Surgical) · 2,405,480 sq ft
Laboratory · 1,862,814 sq ft
Laboratory · 1,546,119 sq ft
See also: most efficient in New York City · biggest emitters
How does 521 E 72nd St 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. Its site EUI of 58.0 kBtu/ft² is about 41% below 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 6.7 kgCO₂e/ft² is about 24% below the group average of 8.8 kgCO₂e/ft².
At 98,707 sq ft, it is about 32% above the average floor area of 75,019 sq ft for those buildings. It was built in 1916, 49 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 521 E 72nd St's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 521 E 72nd St, covering report years 2022, 2024. Site EUI moved from 25.9 kBtu/ft² (2022) to 58.0 kBtu/ft² (2024), an 124% increase. Reported emissions went from 437 tCO₂e to 657 tCO₂e over the same span (up 50%).
What does a site EUI of 58.0 kBtu/ft² mean?
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. 521 E 72nd St's 58.0 kBtu/ft² across 98,707 sq ft works out to about 5.7 billion Btu (1,678 MWh-equivalent) in 2024. Its source EUI of 161.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,668,443 kWh of electricity and 351 therms of natural gas for the year.
Which law requires 521 E 72nd St to report its energy use?
521 E 72nd St 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:5036228:2024). 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
- MSR - Antenucci - 432 West 58th Street· 98,636 sq ft · score 100 (A)
- 91-31 Queens Blvd and 91-14 to 91-18 59th Avenue (Parent Property)· 97,206 sq ft · EUI 136.9 kBtu/ft²
- 91-31 Queens Blvd· 96,361 sq ft
- 274 Madison Avenue· 92,582 sq ft · score 87 (A)
- 1695 Eastchester Road· 91,960 sq ft · EUI 112.5 kBtu/ft²
- WESTCHESTER MEDICAL· 91,083 sq ft · score 100 (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 521 E 72nd St's energy grade?
521 E 72nd St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 58.0 kBtu/ft².
How much energy does 521 E 72nd St use?
Its 2024 site energy-use intensity was 58.0 kBtu/ft² (161.9 kBtu/ft² source) across 98,707 sq ft, including 1,668,443 kWh of electricity and 351 therms of natural gas.
What are 521 E 72nd St's carbon emissions?
521 E 72nd St reported 657 tCO₂e of greenhouse-gas emissions (6.7 kgCO₂e/ft²) for 2024.
Where is 521 E 72nd St?
521 E 72nd St is at 521 East 72nd St, in New York City, New York 10021. Its coordinates are 40.76638, -73.95262 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 521 E 72nd St and when was it built?
521 E 72nd St has 98,707 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1916 as its year built. It is classed as medical office.
Is 521 E 72nd St 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, “521 E 72nd St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/521-e-72nd-st-af545d1f (data as of October 2, 2026).