Galileo Associates (303)
Multifamily Housing in New York City, NY · 303 W 21st St · 10011
At a glance
Galileo Associates (303) is a 9,575-square-foot multifamily housing building at 303 W 21st St in New York City, New York, built in 1900. In its 2023 New York City benchmarking disclosure it reported a site energy-use intensity of 487.4 kBtu/ft² and 356 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 487.4 kBtu/ft² |
| Source EUI | 865.5 kBtu/ft² |
| GHG emissions | 356 tCO₂e |
| GHG intensity | 37.1 kgCO₂e/ft² |
| Electricity | 567,251 kWh |
| Natural gas | 27,310 therms |
| Gross floor area | 9,575 sq ft |
| Source record | nyc:18034120:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 487.4 kBtu/ft² | 356 tCO₂e | |
| 2022 | — | 811.3 kBtu/ft² | 479 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
- 303 W 21st St
- City
- New York City
- State
- New York
- ZIP
- 10011
- Coordinates
- 40.74421, -73.99988
Within ~1 km
Nearby benchmarked buildings
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- 601 West 26 St - Starrett Lehighscore 93
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See also: most efficient in New York City · biggest emitters
How does Galileo Associates (303) compare with other multifamily housing buildings in New York City?
The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 487.4 kBtu/ft² is about 551% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 37.1 kgCO₂e/ft² is about 613% above the group average of 5.2 kgCO₂e/ft².
At 9,575 sq ft, it is about 91% below the average floor area of 100,951 sq ft for those buildings. It was built in 1900, 52 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Galileo Associates (303)'s energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Galileo Associates (303), covering report years 2022–2023. Site EUI moved from 811.3 kBtu/ft² (2022) to 487.4 kBtu/ft² (2023), a 40% decrease. Reported emissions went from 479 tCO₂e to 356 tCO₂e over the same span (down 26%).
What does a site EUI of 487.4 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. Galileo Associates (303)'s 487.4 kBtu/ft² across 9,575 sq ft works out to about 4.7 billion Btu (1,368 MWh-equivalent) in 2023. Its source EUI of 865.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 567,251 kWh of electricity and 27,310 therms of natural gas for the year.
Which law requires Galileo Associates (303) to report its energy use?
Galileo Associates (303) 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 2023 disclosure (source record nyc:18034120:2023). 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 multifamily housing buildings in New York City
- 75 E 4th St· 9,545 sq ft · EUI 126.0 kBtu/ft²
- 77 E 4th St· 9,545 sq ft · EUI 123.5 kBtu/ft²
- 516 West 50th Street· 9,525 sq ft · score 18 (D)
- 3494 SEYMOUR AVENUE· 9,522 sq ft
- 3480 SEYMOUR AVENUE· 9,522 sq ft
- 3488 SEYMOUR AVENUE· 9,522 sq ft
- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
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- Biggest emitters in New York City
Frequently asked questions
What is Galileo Associates (303)'s energy grade?
Galileo Associates (303) did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 487.4 kBtu/ft².
How much energy does Galileo Associates (303) use?
Its 2023 site energy-use intensity was 487.4 kBtu/ft² (865.5 kBtu/ft² source) across 9,575 sq ft, including 567,251 kWh of electricity and 27,310 therms of natural gas.
What are Galileo Associates (303)'s carbon emissions?
Galileo Associates (303) reported 356 tCO₂e of greenhouse-gas emissions (37.1 kgCO₂e/ft²) for 2023.
Where is Galileo Associates (303)?
Galileo Associates (303) is at 303 W 21st St, in New York City, New York 10011. Its coordinates are 40.74421, -73.99988 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Galileo Associates (303) and when was it built?
Galileo Associates (303) has 9,575 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1900 as its year built. It is classed as multifamily housing.
Is Galileo Associates (303) covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “Galileo Associates (303), New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/galileo-associates-303-df276836 (data as of October 2, 2026).