Twenty Three R.P. Associates / 53 W 23rd St
Office in New York City, NY · 53 West 23rd Street · 10010
At a glance
Twenty Three R.P. Associates / 53 W 23rd St is a 337,000-square-foot office building at 53 West 23rd Street in New York City, New York, built in 1915. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 85 out of 100 (grade A), a site energy-use intensity of 57.5 kBtu/ft² and 1,759 tCO₂e of greenhouse-gas emissions. That score is higher than 63% 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 | 85 (band A) |
| Site EUI | 57.5 kBtu/ft² |
| Source EUI | 121.5 kBtu/ft² |
| GHG emissions | 1,759 tCO₂e |
| GHG intensity | 5.2 kgCO₂e/ft² |
| Electricity | 3,453,556 kWh |
| Natural gas | 75,823 therms |
| Gross floor area | 337,000 sq ft |
| Source record | nyc:2563453:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 85 | -10 | 57.5 kBtu/ft² | 1,759 tCO₂e |
| 2023 | 95 | +13 | 38.6 kBtu/ft² | 1,148 tCO₂e |
| 2022 | 82 | 62.3 kBtu/ft² | 1,522 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
- 53 West 23rd Street
- City
- New York City
- State
- New York
- ZIP
- 10010
- Coordinates
- 40.74227, -73.99125
Within ~1 km
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- One Madison Avenuescore —
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See also: most efficient in New York City · biggest emitters
How does Twenty Three R.P. Associates / 53 W 23rd St 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. Twenty Three R.P. Associates / 53 W 23rd St's ENERGY STAR score of 85 compares with an average of 72 across the 2,519 that report a score; it scores higher than 63% of them and lower than 35%. Its site EUI of 57.5 kBtu/ft² is about 11% 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 5.2 kgCO₂e/ft² is about 10% below the group average of 5.8 kgCO₂e/ft².
At 337,000 sq ft, it is about 64% above the average floor area of 205,440 sq ft for those buildings. It was built in 1915, 25 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 Twenty Three R.P. Associates / 53 W 23rd St's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Twenty Three R.P. Associates / 53 W 23rd St, covering report years 2022–2024. Its ENERGY STAR score went from 82 in 2022 to 85 in 2024 (+3 points); its best year on file was 2023, at 95. Site EUI moved from 62.3 kBtu/ft² (2022) to 57.5 kBtu/ft² (2024), a 8% decrease. Reported emissions went from 1,522 tCO₂e to 1,759 tCO₂e over the same span (up 16%).
What does an ENERGY STAR score of 85 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 85 means the building performs better than about 85% of its national peers. BuildingCensus bands the score into report-card grades; 85 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. Twenty Three R.P. Associates / 53 W 23rd St's 57.5 kBtu/ft² across 337,000 sq ft works out to about 19.4 billion Btu (5,679 MWh-equivalent) in 2024. Its source EUI of 121.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,453,556 kWh of electricity and 75,823 therms of natural gas for the year.
Which law requires Twenty Three R.P. Associates / 53 W 23rd St to report its energy use?
Twenty Three R.P. Associates / 53 W 23rd St 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:2563453:2024). 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 Twenty Three R.P. Associates / 53 W 23rd St's energy grade?
Twenty Three R.P. Associates / 53 W 23rd St scores 85 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 Twenty Three R.P. Associates / 53 W 23rd St use?
Its 2024 site energy-use intensity was 57.5 kBtu/ft² (121.5 kBtu/ft² source) across 337,000 sq ft, including 3,453,556 kWh of electricity and 75,823 therms of natural gas.
What are Twenty Three R.P. Associates / 53 W 23rd St's carbon emissions?
Twenty Three R.P. Associates / 53 W 23rd St reported 1,759 tCO₂e of greenhouse-gas emissions (5.2 kgCO₂e/ft²) for 2024.
Where is Twenty Three R.P. Associates / 53 W 23rd St?
Twenty Three R.P. Associates / 53 W 23rd St is at 53 West 23rd Street, in New York City, New York 10010. Its coordinates are 40.74227, -73.99125 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Twenty Three R.P. Associates / 53 W 23rd St and when was it built?
Twenty Three R.P. Associates / 53 W 23rd St has 337,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1915 as its year built. It is classed as office.
Is Twenty Three R.P. Associates / 53 W 23rd St 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, “Twenty Three R.P. Associates / 53 W 23rd St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/twenty-three-r-p-associates-53-w-23rd-st-4cff9c13 (data as of October 2, 2026).