Buchbinder: 30 E 21st St
Multifamily Housing in New York City, NY · 30 E 21st St · 10010
At a glance
Buchbinder: 30 E 21st St is a 35,260-square-foot multifamily housing building in New York City, New York, built in 1904. In its 2023 New York City benchmarking disclosure it reported a site energy-use intensity of 111.0 kBtu/ft² and 325 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 111.0 kBtu/ft² |
| Source EUI | 173.7 kBtu/ft² |
| GHG emissions | 325 tCO₂e |
| GHG intensity | 9.2 kgCO₂e/ft² |
| Electricity | 353,816 kWh |
| Natural gas | 3,342 therms |
| Water use | 1,358 kgal |
| Gross floor area | 35,260 sq ft |
| Source record | nyc:6282521:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 111.0 kBtu/ft² | 325 tCO₂e | |
| 2022 | — | 110.8 kBtu/ft² | 292 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 30 E 21st St
- City
- New York City
- State
- New York
- ZIP
- 10010
- Coordinates
- 40.73961, -73.98899
Within ~1 km
Nearby benchmarked buildings
- Stuyvesant Townscore 83
Multifamily Housing · 9,055,218 sq ft
- 11 Madison Avenuescore 77
Office · 2,228,574 sq ft
- 51 Madisonscore 79
Office · 1,485,386 sq ft
- One Madison Avenuescore —
Office · 1,339,997 sq ft
- ConEd Irving Placescore 55
Office · 1,255,204 sq ft
- Benchmarking Group - 3score —
College/University · 1,221,878 sq ft
See also: most efficient in New York City · biggest emitters
How does Buchbinder: 30 E 21st St 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 111.0 kBtu/ft² is about 48% 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 9.2 kgCO₂e/ft² is about 77% above the group average of 5.2 kgCO₂e/ft².
At 35,260 sq ft, it is about 65% below the average floor area of 100,951 sq ft for those buildings. It was built in 1904, 48 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 Buchbinder: 30 E 21st St's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Buchbinder: 30 E 21st St, covering report years 2022–2023. Site EUI moved from 110.8 kBtu/ft² (2022) to 111.0 kBtu/ft² (2023), an 0% increase. Reported emissions went from 292 tCO₂e to 325 tCO₂e over the same span (up 11%).
What does a site EUI of 111.0 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. Buchbinder: 30 E 21st St's 111.0 kBtu/ft² across 35,260 sq ft works out to about 3.9 billion Btu (1,147 MWh-equivalent) in 2023. Its source EUI of 173.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 353,816 kWh of electricity, 3,342 therms of natural gas and 1,358 thousand gallons of water for the year.
Which law requires Buchbinder: 30 E 21st St to report its energy use?
Buchbinder: 30 E 21st St 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:6282521:2023). 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
- 1253 ST NICHOLAS AVENUE· 35,258 sq ft · score 36 (D)
- Citi Apts - 97-105 Ellwood Street· 35,255 sq ft · score 83 (B)
- 515 West 187th Street· 35,244 sq ft · score 29 (D)
- ROSENBERG: 225 McClellan St· 35,235 sq ft · EUI 112.1 kBtu/ft²
- 117 West 123rd Street· 35,232 sq ft · score 25 (D)
- Pinnacle - 1171 - 1179 President Street· 35,232 sq ft · score 14 (D)
- 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 Buchbinder: 30 E 21st St's energy grade?
Buchbinder: 30 E 21st St did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 111.0 kBtu/ft².
How much energy does Buchbinder: 30 E 21st St use?
Its 2023 site energy-use intensity was 111.0 kBtu/ft² (173.7 kBtu/ft² source) across 35,260 sq ft, including 353,816 kWh of electricity and 3,342 therms of natural gas.
What are Buchbinder: 30 E 21st St's carbon emissions?
Buchbinder: 30 E 21st St reported 325 tCO₂e of greenhouse-gas emissions (9.2 kgCO₂e/ft²) for 2023.
Where is Buchbinder: 30 E 21st St?
Buchbinder: 30 E 21st St is in New York City, New York 10010. Its coordinates are 40.73961, -73.98899 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Buchbinder: 30 E 21st St and when was it built?
Buchbinder: 30 E 21st St has 35,260 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1904 as its year built. It is classed as multifamily housing.
Is Buchbinder: 30 E 21st St 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).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Buchbinder: 30 E 21st St, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/buchbinder-30-e-21st-st-e80ade92 (data as of October 2, 2026).