1735 Park Avenue
Office in New York City, NY · 1725 Park Avenue · 10035
At a glance
1735 Park Avenue is a 33,470-square-foot office building at 1725 Park Avenue in New York City, New York, built in 2003. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 95 out of 100 (grade A), a site energy-use intensity of 75.6 kBtu/ft² and 206 tCO₂e of greenhouse-gas emissions. That score is higher than 87% 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 | 95 (band A) |
| Site EUI | 75.6 kBtu/ft² |
| Source EUI | 140.2 kBtu/ft² |
| GHG emissions | 206 tCO₂e |
| GHG intensity | 6.2 kgCO₂e/ft² |
| Electricity | 340,987 kWh |
| Natural gas | 13,668 therms |
| Gross floor area | 33,470 sq ft |
| Source record | nyc:9598440:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 95 | 75.6 kBtu/ft² | 206 tCO₂e | |
| 2023 | — | 78.7 kBtu/ft² | 197 tCO₂e | |
| 2022 | — | 98.0 kBtu/ft² | 210 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
- 1725 Park Avenue
- City
- New York City
- State
- New York
- ZIP
- 10035
- Coordinates
- 40.80207, -73.94119
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 1735 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. 1735 Park Avenue's ENERGY STAR score of 95 compares with an average of 72 across the 2,519 that report a score; it scores higher than 87% of them and lower than 11%. Its site EUI of 75.6 kBtu/ft² is about 17% 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 6.2 kgCO₂e/ft² is roughly in line with the group average of 5.8 kgCO₂e/ft².
At 33,470 sq ft, it is about 84% below the average floor area of 205,440 sq ft for those buildings. It was built in 2003, 63 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 1735 Park Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 1735 Park Avenue, covering report years 2022–2024. Site EUI moved from 98.0 kBtu/ft² (2022) to 75.6 kBtu/ft² (2024), a 23% decrease. Reported emissions went from 210 tCO₂e to 206 tCO₂e over the same span (down 1%).
What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 falls in band A — high performer (85–100). 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. 1735 Park Avenue's 75.6 kBtu/ft² across 33,470 sq ft works out to about 2.5 billion Btu (742 MWh-equivalent) in 2024. Its source EUI of 140.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 340,987 kWh of electricity and 13,668 therms of natural gas for the year.
Which law requires 1735 Park Avenue to report its energy use?
1735 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:9598440:2024). 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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Frequently asked questions
What is 1735 Park Avenue's energy grade?
1735 Park Avenue scores 95 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1735 Park Avenue use?
Its 2024 site energy-use intensity was 75.6 kBtu/ft² (140.2 kBtu/ft² source) across 33,470 sq ft, including 340,987 kWh of electricity and 13,668 therms of natural gas.
What are 1735 Park Avenue's carbon emissions?
1735 Park Avenue reported 206 tCO₂e of greenhouse-gas emissions (6.2 kgCO₂e/ft²) for 2024.
Where is 1735 Park Avenue?
1735 Park Avenue is at 1725 Park Avenue, in New York City, New York 10035. Its coordinates are 40.80207, -73.94119 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 1735 Park Avenue and when was it built?
1735 Park Avenue has 33,470 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2003 as its year built. It is classed as office.
Is 1735 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, “1735 Park Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/1735-park-avenue-9c865dc3 (data as of October 2, 2026).