Delmonico Plaza Condominium
Office in New York City, NY · 55 East 59th Street · 10022
At a glance
Delmonico Plaza Condominium is a 295,782-square-foot office building at 55 East 59th Street in New York City, New York, built in 1980. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 83 out of 100 (grade B), a site energy-use intensity of 44.3 kBtu/ft² and 1,379 tCO₂e of greenhouse-gas emissions. That score is higher than 58% 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 | 83 (band B) |
| Site EUI | 44.3 kBtu/ft² |
| Source EUI | 109.7 kBtu/ft² |
| GHG emissions | 1,379 tCO₂e |
| GHG intensity | 4.7 kgCO₂e/ft² |
| Electricity | 3,059,397 kWh |
| Natural gas | 0 therms |
| Gross floor area | 295,782 sq ft |
| Source record | nyc:1758568:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 83 | +3 | 44.3 kBtu/ft² | 1,379 tCO₂e |
| 2023 | 80 | 50.8 kBtu/ft² | 1,434 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
- 55 East 59th Street
- City
- New York City
- State
- New York
- ZIP
- 10022
- Coordinates
- 40.76334, -73.97079
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Delmonico Plaza Condominium 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. Delmonico Plaza Condominium's ENERGY STAR score of 83 compares with an average of 72 across the 2,519 that report a score; it scores higher than 58% of them and lower than 39%. Its site EUI of 44.3 kBtu/ft² is about 31% 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 4.7 kgCO₂e/ft² is about 20% below the group average of 5.8 kgCO₂e/ft².
At 295,782 sq ft, it is about 44% above the average floor area of 205,440 sq ft for those buildings. It was built in 1980, 40 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 Delmonico Plaza Condominium's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Delmonico Plaza Condominium, covering report years 2023–2024. Its ENERGY STAR score went from 80 in 2023 to 83 in 2024 (+3 points). Site EUI moved from 50.8 kBtu/ft² (2023) to 44.3 kBtu/ft² (2024), a 13% decrease. Reported emissions went from 1,434 tCO₂e to 1,379 tCO₂e over the same span (down 4%).
What does an ENERGY STAR score of 83 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 83 means the building performs better than about 83% of its national peers. BuildingCensus bands the score into report-card grades; 83 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. Delmonico Plaza Condominium's 44.3 kBtu/ft² across 295,782 sq ft works out to about 13.1 billion Btu (3,840 MWh-equivalent) in 2024. Its source EUI of 109.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,059,397 kWh of electricity and 0 therms of natural gas for the year.
Which law requires Delmonico Plaza Condominium to report its energy use?
Delmonico Plaza Condominium 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:1758568:2024). 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
- 16 Madison Square West / 1115 Broadway· 294,000 sq ft · score 96 (A)
- 26 Court Street -Brooklyn· 293,137 sq ft · EUI 64.9 kBtu/ft²
- 450 West 15th Street· 292,450 sq ft · EUI 40.6 kBtu/ft²
- 540 Madison Avenue· 291,173 sq ft · score 67 (C)
- Ford Foundation - 320 East 43rd· 290,477 sq ft · score 53 (D)
- 675 Third Ave· 289,356 sq ft · score 61 (C)
- 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 Delmonico Plaza Condominium's energy grade?
Delmonico Plaza Condominium scores 83 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 Delmonico Plaza Condominium use?
Its 2024 site energy-use intensity was 44.3 kBtu/ft² (109.7 kBtu/ft² source) across 295,782 sq ft, including 3,059,397 kWh of electricity and 0 therms of natural gas.
What are Delmonico Plaza Condominium's carbon emissions?
Delmonico Plaza Condominium reported 1,379 tCO₂e of greenhouse-gas emissions (4.7 kgCO₂e/ft²) for 2024.
Where is Delmonico Plaza Condominium?
Delmonico Plaza Condominium is at 55 East 59th Street, in New York City, New York 10022. Its coordinates are 40.76334, -73.97079 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Delmonico Plaza Condominium and when was it built?
Delmonico Plaza Condominium has 295,782 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1980 as its year built. It is classed as office.
Is Delmonico Plaza Condominium 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, “Delmonico Plaza Condominium, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/delmonico-plaza-condominium-1ac26d7a (data as of October 2, 2026).