225 Park Ave South (221 PARK AVE S)
Office in New York City, NY · 221 PARK AVENUE SOUTH · 10003
At a glance
225 Park Ave South (221 PARK AVE S) is a 499,464-square-foot office building at 221 PARK AVENUE SOUTH in New York City, New York, built in 1909. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 80 out of 100 (grade B), a site energy-use intensity of 55.1 kBtu/ft² and 2,778 tCO₂e of greenhouse-gas emissions. That score is higher than 52% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 80 (band B) |
| Site EUI | 55.1 kBtu/ft² |
| Source EUI | 121.3 kBtu/ft² |
| GHG emissions | 2,778 tCO₂e |
| GHG intensity | 5.6 kgCO₂e/ft² |
| Electricity | 5,365,663 kWh |
| Natural gas | 5,964 therms |
| Water use | 13,370 kgal |
| Gross floor area | 499,464 sq ft |
| Source record | nyc:2638025:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 80 | -5 | 55.1 kBtu/ft² | 2,778 tCO₂e |
| 2023 | 85 | +12 | 70.1 kBtu/ft² | 3,250 tCO₂e |
| 2022 | 73 | 94.4 kBtu/ft² | 3,558 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
- 221 PARK AVENUE SOUTH
- City
- New York City
- State
- New York
- ZIP
- 10003
- Coordinates
- 40.73723, -73.98852
Within ~1 km
Nearby benchmarked buildings
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- 11 Madison Avenuescore 77
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- 51 Madisonscore 79
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- One Madison Avenuescore —
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- ConEd Irving Placescore 55
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See also: most efficient in New York City · biggest emitters
How does 225 Park Ave South (221 PARK AVE S) compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. 225 Park Ave South (221 PARK AVE S)'s ENERGY STAR score of 80 compares with an average of 72 across the 2,519 that report a score; it scores higher than 52% of them and lower than 46%. Its site EUI of 55.1 kBtu/ft² is about 15% below the average of 64.5 kBtu/ft² — it uses less 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 5.8 kgCO₂e/ft².
At 499,464 sq ft, it is about 143% above the average floor area of 205,440 sq ft for those buildings. It was built in 1909, 31 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 225 Park Ave South (221 PARK AVE S)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 225 Park Ave South (221 PARK AVE S), covering report years 2022–2024. Its ENERGY STAR score went from 73 in 2022 to 80 in 2024 (+7 points); its best year on file was 2023, at 85. Site EUI moved from 94.4 kBtu/ft² (2022) to 55.1 kBtu/ft² (2024), a 42% decrease. Reported emissions went from 3,558 tCO₂e to 2,778 tCO₂e over the same span (down 22%).
What does an ENERGY STAR score of 80 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 80 means the building performs better than about 80% of its national peers. BuildingCensus bands the score into report-card grades; 80 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In New York City, 43% of scored buildings are at 75 or above.
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. 225 Park Ave South (221 PARK AVE S)'s 55.1 kBtu/ft² across 499,464 sq ft works out to about 27.5 billion Btu (8,065 MWh-equivalent) in 2024. Its source EUI of 121.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 5,365,663 kWh of electricity, 5,964 therms of natural gas and 13,370 thousand gallons of water for the year.
Which law requires 225 Park Ave South (221 PARK AVE S) to report its energy use?
225 Park Ave South (221 PARK AVE S) 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:2638025:2024). 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.
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- Office buildings in New York City· 3,384 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 225 Park Ave South (221 PARK AVE S)'s energy grade?
225 Park Ave South (221 PARK AVE S) scores 80 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 225 Park Ave South (221 PARK AVE S) use?
Its 2024 site energy-use intensity was 55.1 kBtu/ft² (121.3 kBtu/ft² source) across 499,464 sq ft, including 5,365,663 kWh of electricity and 5,964 therms of natural gas.
What are 225 Park Ave South (221 PARK AVE S)'s carbon emissions?
225 Park Ave South (221 PARK AVE S) reported 2,778 tCO₂e of greenhouse-gas emissions (5.6 kgCO₂e/ft²) for 2024.
Where is 225 Park Ave South (221 PARK AVE S)?
225 Park Ave South (221 PARK AVE S) is at 221 PARK AVENUE SOUTH, in New York City, New York 10003. Its coordinates are 40.73723, -73.98852 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 225 Park Ave South (221 PARK AVE S) and when was it built?
225 Park Ave South (221 PARK AVE S) has 499,464 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1909 as its year built. It is classed as office.
Is 225 Park Ave South (221 PARK AVE S) 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, “225 Park Ave South (221 PARK AVE S), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/225-park-ave-south-221-park-ave-s-440d618b (data as of October 2, 2026).