350 Park Avenue
Office in New York City, NY · 340 PARK AVENUE · 10022
At a glance
350 Park Avenue is a 545,962-square-foot office building at 340 PARK AVENUE in New York City, New York, built in 1960. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 65 out of 100 (grade C), a site energy-use intensity of 87.1 kBtu/ft² and 4,700 tCO₂e of greenhouse-gas emissions. That score is higher than 29% 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 | 65 (band C) |
| Site EUI | 87.1 kBtu/ft² |
| Source EUI | 197.5 kBtu/ft² |
| GHG emissions | 4,700 tCO₂e |
| GHG intensity | 8.6 kgCO₂e/ft² |
| Electricity | 9,290,953 kWh |
| Water use | 2,609 kgal |
| Gross floor area | 545,962 sq ft |
| Source record | nyc:1463980:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 65 | +9 | 87.1 kBtu/ft² | 4,700 tCO₂e |
| 2023 | 56 | +1 | 78.1 kBtu/ft² | 3,981 tCO₂e |
| 2022 | 55 | 83.3 kBtu/ft² | 3,479 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
- 340 PARK AVENUE
- City
- New York City
- State
- New York
- ZIP
- 10022
- Coordinates
- 40.75797, -73.97342
Within ~1 km
Nearby benchmarked buildings
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- Metlife Building (200 Park)score 69
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- 1251 Avenue of the Americasscore 77
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- 1301 Avenue of the Americasscore 68
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- 1271 Avenue of the Americasscore 85
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See also: most efficient in New York City · biggest emitters
How does 350 Park Avenue 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. 350 Park Avenue's ENERGY STAR score of 65 compares with an average of 72 across the 2,519 that report a score; it scores higher than 29% of them and lower than 70%. Its site EUI of 87.1 kBtu/ft² is about 35% above the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 8.6 kgCO₂e/ft² is about 48% above the group average of 5.8 kgCO₂e/ft².
At 545,962 sq ft, it is about 166% above the average floor area of 205,440 sq ft for those buildings. It was built in 1960, 20 years later 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 350 Park Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 350 Park Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 55 in 2022 to 65 in 2024 (+10 points). Site EUI moved from 83.3 kBtu/ft² (2022) to 87.1 kBtu/ft² (2024), an 5% increase. Reported emissions went from 3,479 tCO₂e to 4,700 tCO₂e over the same span (up 35%).
What does an ENERGY STAR score of 65 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 65 means the building performs better than about 65% of its national peers. BuildingCensus bands the score into report-card grades; 65 falls in band C — below median (55–69). It sits 10 points below 75, the threshold for ENERGY STAR certification. 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. 350 Park Avenue's 87.1 kBtu/ft² across 545,962 sq ft works out to about 47.6 billion Btu (13,937 MWh-equivalent) in 2024. Its source EUI of 197.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 9,290,953 kWh of electricity and 2,609 thousand gallons of water for the year.
Which law requires 350 Park Avenue to report its energy use?
350 Park Avenue 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:1463980:2024). 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 office buildings in New York City
- 575 5th Ave· 545,468 sq ft · score 78 (B)
- Feil - 30-30 Thomson Avenue· 544,515 sq ft · score 77 (B)
- 622 3rd Avenue - 1036148· 544,000 sq ft
- 622 3rd Avenue - 1089024· 544,000 sq ft
- 1350 Ave of the Americas· 541,850 sq ft · score 64 (C)
- 522 Fifth Avenue· 541,827 sq ft · EUI 33.7 kBtu/ft²
- 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 350 Park Avenue's energy grade?
350 Park Avenue scores 65 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 350 Park Avenue use?
Its 2024 site energy-use intensity was 87.1 kBtu/ft² (197.5 kBtu/ft² source) across 545,962 sq ft, including 9,290,953 kWh of electricity.
What are 350 Park Avenue's carbon emissions?
350 Park Avenue reported 4,700 tCO₂e of greenhouse-gas emissions (8.6 kgCO₂e/ft²) for 2024.
Where is 350 Park Avenue?
350 Park Avenue is at 340 PARK AVENUE, in New York City, New York 10022. Its coordinates are 40.75797, -73.97342 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 350 Park Avenue and when was it built?
350 Park Avenue has 545,962 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1960 as its year built. It is classed as office.
Is 350 Park Avenue 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, “350 Park Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/350-park-avenue-ab69f521 (data as of October 2, 2026).