Stella Towers Condo (425 West 50th Street)
Data Center in New York City, NY · 425 West 50th Street · 10014
At a glance
Stella Towers Condo (425 West 50th Street) is a 325,608-square-foot data center in New York City, New York, built in 1931. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 169.2 kBtu/ft² and 5,743 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 169.2 kBtu/ft² |
| Source EUI | 413.6 kBtu/ft² |
| GHG emissions | 5,743 tCO₂e |
| GHG intensity | 17.6 kgCO₂e/ft² |
| Electricity | 12,549,252 kWh |
| Gross floor area | 325,608 sq ft |
| Source record | nyc:4409724:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 169.2 kBtu/ft² | 5,743 tCO₂e | |
| 2023 | — | 37827.6 kBtu/ft² | 846,700 tCO₂e | |
| 2022 | — | 180.3 kBtu/ft² | 4,923 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
- 425 West 50th Street
- City
- New York City
- State
- New York
- ZIP
- 10014
- Coordinates
- 40.76388, -73.98985
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Stella Towers Condo (425 West 50th Street) compare with other data center buildings in New York City?
The latest disclosures cover 68 data center buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 169.2 kBtu/ft² is about 18% below the average of 206.0 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 17.6 kgCO₂e/ft² is about 19% below the group average of 21.9 kgCO₂e/ft².
At 325,608 sq ft, it is about 161% above the average floor area of 124,914 sq ft for those buildings. Its 1931 construction date is close to the group's average year built (1932). Across all 24 jurisdictions BuildingCensus covers, the 267 data center buildings average an ENERGY STAR score of 68 and a site EUI of 504.4 kBtu/ft².
How has Stella Towers Condo (425 West 50th Street)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Stella Towers Condo (425 West 50th Street), covering report years 2022–2024. Site EUI moved from 180.3 kBtu/ft² (2022) to 169.2 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 4,923 tCO₂e to 5,743 tCO₂e over the same span (up 17%).
What does a site EUI of 169.2 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. Stella Towers Condo (425 West 50th Street)'s 169.2 kBtu/ft² across 325,608 sq ft works out to about 55.1 billion Btu (16,146 MWh-equivalent) in 2024. Its source EUI of 413.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 12,549,252 kWh of electricity for the year.
Which law requires Stella Towers Condo (425 West 50th Street) to report its energy use?
Stella Towers Condo (425 West 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:4409724:2024). 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 data center buildings in New York City
- CO/VZT/230 W 36TH ST/NEW YORK/NY· 308,629 sq ft · EUI 208.5 kBtu/ft²
- 11 Metrotech Center - Brooklyn· 260,405 sq ft · EUI 344.2 kBtu/ft²
- CO/VZT/204 2ND AVE/NEW YORK/NY· 250,184 sq ft · EUI 171.5 kBtu/ft²
- CO/VZT/104 BROAD ST/NEW YORK/NY· 244,488 sq ft · EUI 129.1 kBtu/ft²
- CO/VZT/228 E 56 ST/NEW YORK/NY· 239,593 sq ft · EUI 247.7 kBtu/ft²
- DOITT_3320_Technology Center· 216,000 sq ft · EUI 380.4 kBtu/ft²
- Data Center buildings in New York City· 68 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 Stella Towers Condo (425 West 50th Street)'s energy grade?
Stella Towers Condo (425 West 50th Street) did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 169.2 kBtu/ft².
How much energy does Stella Towers Condo (425 West 50th Street) use?
Its 2024 site energy-use intensity was 169.2 kBtu/ft² (413.6 kBtu/ft² source) across 325,608 sq ft, including 12,549,252 kWh of electricity.
What are Stella Towers Condo (425 West 50th Street)'s carbon emissions?
Stella Towers Condo (425 West 50th Street) reported 5,743 tCO₂e of greenhouse-gas emissions (17.6 kgCO₂e/ft²) for 2024.
Where is Stella Towers Condo (425 West 50th Street)?
Stella Towers Condo (425 West 50th Street) is in New York City, New York 10014. Its coordinates are 40.76388, -73.98985 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Stella Towers Condo (425 West 50th Street) and when was it built?
Stella Towers Condo (425 West 50th Street) has 325,608 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1931 as its year built. It is classed as data center.
Is Stella Towers Condo (425 West 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, “Stella Towers Condo (425 West 50th Street), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/stella-towers-condo-425-west-50th-street-55bc6cbb (data as of October 2, 2026).