323 Park Avenue South
Multifamily Housing in New York City, NY · 323 PARK AVENUE SOUTH · 10010
At a glance
323 Park Avenue South is a 33,440-square-foot multifamily housing building at 323 PARK AVENUE SOUTH in New York City, New York, built in 2013. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 98.8 kBtu/ft² and 283 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 98.8 kBtu/ft² |
| Source EUI | 194.2 kBtu/ft² |
| GHG emissions | 283 tCO₂e |
| GHG intensity | 8.4 kgCO₂e/ft² |
| Electricity | 506,282 kWh |
| Natural gas | 15,779 therms |
| Gross floor area | 33,440 sq ft |
| Source record | nyc:52171592:2024 |
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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 323 PARK AVENUE SOUTH
- City
- New York City
- State
- New York
- ZIP
- 10010
- Coordinates
- 40.74094, -73.98580
Within ~1 km
Nearby benchmarked buildings
- Peter Cooper Villagescore 85
Multifamily Housing · 3,015,232 sq ft
- ESRT - Empire State Buildingscore 78
Office · 2,852,257 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
See also: most efficient in New York City · biggest emitters
How does 323 Park Avenue South 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 98.8 kBtu/ft² is about 32% 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 8.4 kgCO₂e/ft² is about 62% above the group average of 5.2 kgCO₂e/ft².
At 33,440 sq ft, it is about 67% below the average floor area of 100,951 sq ft for those buildings. It was built in 2013, 61 years later 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 98.8 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. 323 Park Avenue South's 98.8 kBtu/ft² across 33,440 sq ft works out to about 3.3 billion Btu (968 MWh-equivalent) in 2024. Its source EUI of 194.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 506,282 kWh of electricity and 15,779 therms of natural gas for the year.
Which law requires 323 Park Avenue South to report its energy use?
323 Park Avenue South 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:52171592:2024). 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
- Century - 224 Mulberry Street· 33,439 sq ft · EUI 54.2 kBtu/ft²
- 50 Madison Avenue - 30361· 33,438 sq ft · EUI 59.2 kBtu/ft²
- 1201 UNIVERSITY AVE.· 33,425 sq ft · score 100 (A)
- Samuel Bodenheim Management - 1201 University Ave· 33,425 sq ft · score 3 (D)
- 94-19 35th Avenue· 33,420 sq ft · score 93 (A)
- 95-05 35th Avenue· 33,420 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 323 Park Avenue South's energy grade?
323 Park Avenue South did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 98.8 kBtu/ft².
How much energy does 323 Park Avenue South use?
Its 2024 site energy-use intensity was 98.8 kBtu/ft² (194.2 kBtu/ft² source) across 33,440 sq ft, including 506,282 kWh of electricity and 15,779 therms of natural gas.
What are 323 Park Avenue South's carbon emissions?
323 Park Avenue South reported 283 tCO₂e of greenhouse-gas emissions (8.4 kgCO₂e/ft²) for 2024.
Where is 323 Park Avenue South?
323 Park Avenue South is at 323 PARK AVENUE SOUTH, in New York City, New York 10010. Its coordinates are 40.74094, -73.98580 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 323 Park Avenue South and when was it built?
323 Park Avenue South has 33,440 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2013 as its year built. It is classed as multifamily housing.
Is 323 Park Avenue South 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).
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, “323 Park Avenue South, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/323-park-avenue-south-d057515a (data as of October 2, 2026).