129 West 20th Street - CEC
Multifamily Housing in New York City, NY · 129 West 20th Street · 10011
At a glance
129 West 20th Street - CEC is a 36,455-square-foot multifamily housing building in New York City, New York, built in 1905. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 25.9 kBtu/ft² and 105 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 25.9 kBtu/ft² |
| Source EUI | 69.4 kBtu/ft² |
| GHG emissions | 105 tCO₂e |
| GHG intensity | 2.9 kgCO₂e/ft² |
| Electricity | 257,361 kWh |
| Natural gas | 671 therms |
| Gross floor area | 36,455 sq ft |
| Source record | nyc:55272895:2024 |
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
- 129 West 20th Street
- City
- New York City
- State
- New York
- ZIP
- 10011
- Coordinates
- 40.74151, -73.99529
Within ~1 km
Nearby benchmarked buildings
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- 11 Madison Avenuescore 77
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- One Madison Avenuescore —
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- ConEd Irving Placescore 55
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- Benchmarking Group - 3score —
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See also: most efficient in New York City · biggest emitters
How does 129 West 20th Street - CEC 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 25.9 kBtu/ft² is about 65% below the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.9 kgCO₂e/ft² is about 45% below the group average of 5.2 kgCO₂e/ft².
At 36,455 sq ft, it is about 64% below the average floor area of 100,951 sq ft for those buildings. It was built in 1905, 47 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 25.9 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. 129 West 20th Street - CEC's 25.9 kBtu/ft² across 36,455 sq ft works out to about 0.9 billion Btu (277 MWh-equivalent) in 2024. Its source EUI of 69.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 257,361 kWh of electricity and 671 therms of natural gas for the year.
Which law requires 129 West 20th Street - CEC to report its energy use?
129 West 20th Street - CEC 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:55272895:2024). 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 multifamily housing buildings in New York City
- 340 South 3rd Street· 36,450 sq ft · score 90 (A)
- 129 Wadsworth Mgmt Co. c/o Alma Realty· 36,450 sq ft · score 2 (D)
- Wavecrest CHILD - 45 Malta Street· 36,447 sq ft · score 42 (D)
- Wavecrest PARENT - 45 Malta Street / 662 Alabama Avenue· 36,447 sq ft · score 15 (D)
- KM 1016 Bryant Avenue· 36,445 sq ft · score 35 (D)
- 730 Linden Blvd· 36,444 sq ft · score 58 (C)
- 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 129 West 20th Street - CEC's energy grade?
129 West 20th Street - CEC did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 25.9 kBtu/ft².
How much energy does 129 West 20th Street - CEC use?
Its 2024 site energy-use intensity was 25.9 kBtu/ft² (69.4 kBtu/ft² source) across 36,455 sq ft, including 257,361 kWh of electricity and 671 therms of natural gas.
What are 129 West 20th Street - CEC's carbon emissions?
129 West 20th Street - CEC reported 105 tCO₂e of greenhouse-gas emissions (2.9 kgCO₂e/ft²) for 2024.
Where is 129 West 20th Street - CEC?
129 West 20th Street - CEC is in New York City, New York 10011. Its coordinates are 40.74151, -73.99529 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 129 West 20th Street - CEC and when was it built?
129 West 20th Street - CEC has 36,455 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1905 as its year built. It is classed as multifamily housing.
Is 129 West 20th Street - CEC 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, “129 West 20th Street - CEC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/129-west-20th-street-cec-d08fd10f (data as of October 2, 2026).