LL84 NYU Langone Smilow Building
Laboratory in New York City, NY · 522 First Avenue · 10016
At a glance
LL84 NYU Langone Smilow Building is a 261,272-square-foot laboratory building at 522 First Avenue in New York City, New York, built in 2006. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 156.5 kBtu/ft² and 4,705 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 156.5 kBtu/ft² |
| Source EUI | 438.1 kBtu/ft² |
| GHG emissions | 4,705 tCO₂e |
| GHG intensity | 18.0 kgCO₂e/ft² |
| Electricity | 11,981,231 kWh |
| Gross floor area | 261,272 sq ft |
| Source record | nyc:4143131:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 156.5 kBtu/ft² | 4,705 tCO₂e | |
| 2023 | — | 149.2 kBtu/ft² | 4,237 tCO₂e | |
| 2022 | — | 154.0 kBtu/ft² | 3,386 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
- 522 First Avenue
- City
- New York City
- State
- New York
- ZIP
- 10016
- Coordinates
- 40.74149, -73.97517
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does LL84 NYU Langone Smilow Building compare with other laboratory buildings in New York City?
The latest disclosures cover 90 laboratory buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 156.5 kBtu/ft² is about 62% below the average of 409.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 18.0 kgCO₂e/ft² is about 37% below the group average of 28.8 kgCO₂e/ft².
At 261,272 sq ft, it is about 11% below the average floor area of 293,236 sq ft for those buildings. It was built in 2006, 41 years later than the group's average year built (1966). Across all 24 jurisdictions BuildingCensus covers, the 795 laboratory buildings average an ENERGY STAR score of 29 and a site EUI of 231.7 kBtu/ft².
How has LL84 NYU Langone Smilow Building's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for LL84 NYU Langone Smilow Building, covering report years 2022–2024. Site EUI moved from 154.0 kBtu/ft² (2022) to 156.5 kBtu/ft² (2024), an 2% increase. Reported emissions went from 3,386 tCO₂e to 4,705 tCO₂e over the same span (up 39%).
What does a site EUI of 156.5 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. LL84 NYU Langone Smilow Building's 156.5 kBtu/ft² across 261,272 sq ft works out to about 40.9 billion Btu (11,983 MWh-equivalent) in 2024. Its source EUI of 438.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 11,981,231 kWh of electricity for the year.
Which law requires LL84 NYU Langone Smilow Building to report its energy use?
LL84 NYU Langone Smilow Building 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:4143131:2024). 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 laboratory buildings in New York City
- Taystee Life Science Building· 260,965 sq ft · EUI 25.8 kBtu/ft²
- 345 Park Avenue South - PAS Holding· 250,628 sq ft · EUI 143.7 kBtu/ft²
- Weiss· 246,634 sq ft
- Price Center for Genetic and Translational Med.· 228,457 sq ft · EUI 157.3 kBtu/ft²
- 1301 Morris Park Ave· 223,750 sq ft · EUI 636.0 kBtu/ft²
- Russ Berrie/School of Nursing (Campus)· 216,906 sq ft
- Laboratory buildings in New York City· 90 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 LL84 NYU Langone Smilow Building's energy grade?
LL84 NYU Langone Smilow Building did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 156.5 kBtu/ft².
How much energy does LL84 NYU Langone Smilow Building use?
Its 2024 site energy-use intensity was 156.5 kBtu/ft² (438.1 kBtu/ft² source) across 261,272 sq ft, including 11,981,231 kWh of electricity.
What are LL84 NYU Langone Smilow Building's carbon emissions?
LL84 NYU Langone Smilow Building reported 4,705 tCO₂e of greenhouse-gas emissions (18.0 kgCO₂e/ft²) for 2024.
Where is LL84 NYU Langone Smilow Building?
LL84 NYU Langone Smilow Building is at 522 First Avenue, in New York City, New York 10016. Its coordinates are 40.74149, -73.97517 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is LL84 NYU Langone Smilow Building and when was it built?
LL84 NYU Langone Smilow Building has 261,272 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2006 as its year built. It is classed as laboratory.
Is LL84 NYU Langone Smilow Building 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, “LL84 NYU Langone Smilow Building, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/ll84-nyu-langone-smilow-building-04a26a46 (data as of October 2, 2026).