42 East 20th Street
Multifamily Housing in New York City, NY · 10003
At a glance
42 East 20th Street is a 62,040-square-foot multifamily housing building in New York City, New York, built in 1910. In its 2022 New York City benchmarking disclosure it reported a site energy-use intensity of 161.3 kBtu/ft² and 680 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 161.3 kBtu/ft² |
| Source EUI | 302.6 kBtu/ft² |
| GHG emissions | 680 tCO₂e |
| GHG intensity | 11.0 kgCO₂e/ft² |
| Electricity | 1,384,171 kWh |
| Water use | 5,105 kgal |
| Gross floor area | 62,040 sq ft |
| Source record | nyc:14851840:2022 |
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
- 42 East 20th Street
- City
- New York City
- State
- New York
- ZIP
- 10003
- Coordinates
- 40.73885, -73.98903
Within ~1 km
Nearby benchmarked buildings
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- One Madison Avenuescore —
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- ConEd Irving Placescore 55
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See also: most efficient in New York City · biggest emitters
How does 42 East 20th Street 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 161.3 kBtu/ft² is about twice 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 11.0 kgCO₂e/ft² is about twice the group average of 5.2 kgCO₂e/ft².
At 62,040 sq ft, it is about 39% below the average floor area of 100,951 sq ft for those buildings. It was built in 1910, 42 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.
What does a site EUI of 161.3 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. 42 East 20th Street's 161.3 kBtu/ft² across 62,040 sq ft works out to about 10 billion Btu (2,933 MWh-equivalent) in 2022. Its source EUI of 302.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,384,171 kWh of electricity and 5,105 thousand gallons of water for the year.
Which law requires 42 East 20th Street to report its energy use?
42 East 20th 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 2022 disclosure (source record nyc:14851840:2022). 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
- CAMPUS: 641/659 East 225th Street· 62,035 sq ft · score 85 (A)
- 138 BROADWAY· 62,026 sq ft · score 86 (A)
- 4265 Webster Avenue· 62,015 sq ft · score 80 (B)
- E&M 38-40 FEATHERBED LANE· 62,015 sq ft · score 55 (C)
- 65-65 Booth Street· 62,010 sq ft · score 72 (B)
- 230 East 71st Street· 62,002 sq ft · score 94 (A)
- 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
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is 42 East 20th Street's energy grade?
42 East 20th Street did not report an ENERGY STAR score in its 2022 disclosure, but its site energy-use intensity was 161.3 kBtu/ft².
How much energy does 42 East 20th Street use?
Its 2022 site energy-use intensity was 161.3 kBtu/ft² (302.6 kBtu/ft² source) across 62,040 sq ft, including 1,384,171 kWh of electricity.
What are 42 East 20th Street's carbon emissions?
42 East 20th Street reported 680 tCO₂e of greenhouse-gas emissions (11.0 kgCO₂e/ft²) for 2022.
Where is 42 East 20th Street?
42 East 20th Street is in New York City, New York 10003. Its coordinates are 40.73885, -73.98903 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 42 East 20th Street and when was it built?
42 East 20th Street has 62,040 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1910 as its year built. It is classed as multifamily housing.
Is 42 East 20th Street covered by Local Law 84 (LL84)?
Yes — it appears in the 2022 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, “42 East 20th Street, New York City, New York — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/42-east-20th-street-73949544 (data as of October 2, 2026).