423 E 115th St
Multifamily Housing in New York City, NY · 423 East 115th Street · 10029
At a glance
423 E 115th St is a 13,116-square-foot multifamily housing building at 423 East 115th Street in New York City, New York, built in 1910. In its 2023 New York City benchmarking disclosure it reported a site energy-use intensity of 91.4 kBtu/ft² and 73 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 91.4 kBtu/ft² |
| Source EUI | 119.3 kBtu/ft² |
| GHG emissions | 73 tCO₂e |
| GHG intensity | 5.6 kgCO₂e/ft² |
| Electricity | 51,111 kWh |
| Natural gas | 10,249 therms |
| Gross floor area | 13,116 sq ft |
| Source record | nyc:5004554:2023 |
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
- 423 East 115th Street
- City
- New York City
- State
- New York
- ZIP
- 10029
- Coordinates
- 40.79503, -73.93521
Within ~1 km
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- JEFFERSONscore —
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See also: most efficient in New York City · biggest emitters
How does 423 E 115th 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 91.4 kBtu/ft² is about 22% 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 5.6 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 13,116 sq ft, it is about 87% 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 91.4 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. 423 E 115th St's 91.4 kBtu/ft² across 13,116 sq ft works out to about 1.2 billion Btu (351 MWh-equivalent) in 2023. Its source EUI of 119.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 51,111 kWh of electricity and 10,249 therms of natural gas for the year.
Which law requires 423 E 115th St to report its energy use?
423 E 115th 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:5004554:2023). 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
- 581 Belmont Avenue· 13,089 sq ft · EUI 53.1 kBtu/ft²
- 477 West 152nd Street· 13,070 sq ft
- 469 West 152nd Street· 13,070 sq ft
- 1202 Clay Ave· 13,026 sq ft
- 217 8 AVENUE· 12,990 sq ft
- Galileo Associates (301)· 12,990 sq ft · EUI 31.6 kBtu/ft²
- 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 423 E 115th St's energy grade?
423 E 115th St did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 91.4 kBtu/ft².
How much energy does 423 E 115th St use?
Its 2023 site energy-use intensity was 91.4 kBtu/ft² (119.3 kBtu/ft² source) across 13,116 sq ft, including 51,111 kWh of electricity and 10,249 therms of natural gas.
What are 423 E 115th St's carbon emissions?
423 E 115th St reported 73 tCO₂e of greenhouse-gas emissions (5.6 kgCO₂e/ft²) for 2023.
Where is 423 E 115th St?
423 E 115th St is at 423 East 115th Street, in New York City, New York 10029. Its coordinates are 40.79503, -73.93521 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 423 E 115th St and when was it built?
423 E 115th St has 13,116 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1910 as its year built. It is classed as multifamily housing.
Is 423 E 115th 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, “423 E 115th St, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/423-e-115th-st-6aebaa52 (data as of October 2, 2026).