Buchbinder: 43 Walker St
Multifamily Housing in New York City, NY · 43 Walker St · 10013
At a glance
Buchbinder: 43 Walker St is a 36,276-square-foot multifamily housing building in New York City, New York, built in 1888. In its 2023 New York City benchmarking disclosure it reported a site energy-use intensity of 24.5 kBtu/ft² and 97 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 24.5 kBtu/ft² |
| Source EUI | 68.6 kBtu/ft² |
| GHG emissions | 97 tCO₂e |
| GHG intensity | 2.7 kgCO₂e/ft² |
| Electricity | 260,295 kWh |
| Natural gas | 0 therms |
| Water use | 1,096 kgal |
| Gross floor area | 36,276 sq ft |
| Source record | nyc:6282531:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 24.5 kBtu/ft² | 97 tCO₂e | |
| 2022 | — | 60.4 kBtu/ft² | 145 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
- 43 Walker St
- City
- New York City
- State
- New York
- ZIP
- 10013
- Coordinates
- 40.71913, -74.00365
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Buchbinder: 43 Walker 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 24.5 kBtu/ft² is about 67% 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 2.7 kgCO₂e/ft² is about half of the group average of 5.2 kgCO₂e/ft².
At 36,276 sq ft, it is about 64% below the average floor area of 100,951 sq ft for those buildings. It was built in 1888, 64 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: 43 Walker St's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Buchbinder: 43 Walker St, covering report years 2022–2023. Site EUI moved from 60.4 kBtu/ft² (2022) to 24.5 kBtu/ft² (2023), a 59% decrease. Reported emissions went from 145 tCO₂e to 97 tCO₂e over the same span (down 33%).
What does a site EUI of 24.5 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: 43 Walker St's 24.5 kBtu/ft² across 36,276 sq ft works out to about 0.9 billion Btu (260 MWh-equivalent) in 2023. Its source EUI of 68.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 260,295 kWh of electricity, 0 therms of natural gas and 1,096 thousand gallons of water for the year.
Which law requires Buchbinder: 43 Walker St to report its energy use?
Buchbinder: 43 Walker 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:6282531:2023). 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
- 105 East 63rd Street· 36,274 sq ft · score 94 (A)
- Buchbinder: 40 East 19th St· 36,268 sq ft · EUI 32.8 kBtu/ft²
- ISIDRO GONZALEZ· 36,268 sq ft · EUI 63.1 kBtu/ft²
- 82 Wadsworth Terrace· 36,267 sq ft · score 1 (D)
- 155 15TH STREET LLC· 36,267 sq ft · score 91 (A)
- 40 West 84th Street Owners Corp· 36,265 sq ft · score 100 (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 Buchbinder: 43 Walker St's energy grade?
Buchbinder: 43 Walker St did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 24.5 kBtu/ft².
How much energy does Buchbinder: 43 Walker St use?
Its 2023 site energy-use intensity was 24.5 kBtu/ft² (68.6 kBtu/ft² source) across 36,276 sq ft, including 260,295 kWh of electricity and 0 therms of natural gas.
What are Buchbinder: 43 Walker St's carbon emissions?
Buchbinder: 43 Walker St reported 97 tCO₂e of greenhouse-gas emissions (2.7 kgCO₂e/ft²) for 2023.
Where is Buchbinder: 43 Walker St?
Buchbinder: 43 Walker St is in New York City, New York 10013. Its coordinates are 40.71913, -74.00365 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Buchbinder: 43 Walker St and when was it built?
Buchbinder: 43 Walker St has 36,276 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1888 as its year built. It is classed as multifamily housing.
Is Buchbinder: 43 Walker 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).
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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, “Buchbinder: 43 Walker St, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/buchbinder-43-walker-st-d6444379 (data as of October 2, 2026).