635 Park Ave
Multifamily Housing in New York City, NY · 633 PARK AVENUE · 10065
At a glance
635 Park Ave is a 72,600-square-foot multifamily housing building at 633 PARK AVENUE in New York City, New York, built in 1913. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 67.4 kBtu/ft² and 424 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 67.4 kBtu/ft² |
| Source EUI | 106.0 kBtu/ft² |
| GHG emissions | 424 tCO₂e |
| GHG intensity | 5.8 kgCO₂e/ft² |
| Electricity | 451,345 kWh |
| Natural gas | 685 therms |
| Water use | 1,166 kgal |
| Gross floor area | 72,600 sq ft |
| Source record | nyc:2670061:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 67.4 kBtu/ft² | 424 tCO₂e | |
| 2023 | — | 57.4 kBtu/ft² | 361 tCO₂e | |
| 2022 | — | 65.7 kBtu/ft² | 367 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
- 633 PARK AVENUE
- City
- New York City
- State
- New York
- ZIP
- 10065
- Coordinates
- 40.76705, -73.96677
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 635 Park Ave 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 67.4 kBtu/ft² is about 10% 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 5.8 kgCO₂e/ft² is about 13% above the group average of 5.2 kgCO₂e/ft².
At 72,600 sq ft, it is about 28% below the average floor area of 100,951 sq ft for those buildings. It was built in 1913, 39 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 635 Park Ave's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 635 Park Ave, covering report years 2022–2024. Site EUI moved from 65.7 kBtu/ft² (2022) to 67.4 kBtu/ft² (2024), an 3% increase. Reported emissions went from 367 tCO₂e to 424 tCO₂e over the same span (up 16%).
What does a site EUI of 67.4 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. 635 Park Ave's 67.4 kBtu/ft² across 72,600 sq ft works out to about 4.9 billion Btu (1,434 MWh-equivalent) in 2024. Its source EUI of 106.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 451,345 kWh of electricity, 685 therms of natural gas and 1,166 thousand gallons of water for the year.
Which law requires 635 Park Ave to report its energy use?
635 Park Ave 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:2670061:2024). 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
- 3720 Independence Ave· 72,594 sq ft · score 99 (A)
- 1781 RIVERSIDE DRIVE· 72,592 sq ft · score 79 (B)
- Citadel_1 Prospect Park Southwest· 72,582 sq ft · EUI 60.9 kBtu/ft²
- 3100-3108 Kingsbridge Avenue· 72,580 sq ft · score 70 (B)
- 10 West 86th Street· 72,561 sq ft · score 100 (A)
- Dongan Tower Condominium 1 LLC· 72,555 sq ft · EUI 34.4 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 635 Park Ave's energy grade?
635 Park Ave did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 67.4 kBtu/ft².
How much energy does 635 Park Ave use?
Its 2024 site energy-use intensity was 67.4 kBtu/ft² (106.0 kBtu/ft² source) across 72,600 sq ft, including 451,345 kWh of electricity and 685 therms of natural gas.
What are 635 Park Ave's carbon emissions?
635 Park Ave reported 424 tCO₂e of greenhouse-gas emissions (5.8 kgCO₂e/ft²) for 2024.
Where is 635 Park Ave?
635 Park Ave is at 633 PARK AVENUE, in New York City, New York 10065. Its coordinates are 40.76705, -73.96677 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 635 Park Ave and when was it built?
635 Park Ave has 72,600 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1913 as its year built. It is classed as multifamily housing.
Is 635 Park Ave 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, “635 Park Ave, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/635-park-ave-240ae98e (data as of October 2, 2026).