Park Royal Owners, Inc
Multifamily Housing in New York City, NY · 23 W. 73Rd Street · 10023
At a glance
Park Royal Owners, Inc is a 308,337-square-foot multifamily housing building at 23 W. 73Rd Street in New York City, New York, built in 1926. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 40 out of 100 (grade D), a site energy-use intensity of 74.8 kBtu/ft² and 1,587 tCO₂e of greenhouse-gas emissions. That score is higher than 24% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 40 (band D) |
| Site EUI | 74.8 kBtu/ft² |
| Source EUI | 111.7 kBtu/ft² |
| GHG emissions | 1,587 tCO₂e |
| GHG intensity | 5.2 kgCO₂e/ft² |
| Electricity | 1,713,225 kWh |
| Natural gas | 172,190 therms |
| Gross floor area | 308,337 sq ft |
| Source record | nyc:33955736:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 40 | -48 | 74.8 kBtu/ft² | 1,587 tCO₂e |
| 2023 | 88 | 49.2 kBtu/ft² | 1,036 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
- 23 W. 73Rd Street
- City
- New York City
- State
- New York
- ZIP
- 10023
- Coordinates
- 40.77718, -73.97611
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Park Royal Owners, Inc compare with other multifamily housing buildings in New York City?
The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. Park Royal Owners, Inc's ENERGY STAR score of 40 compares with an average of 63 across the 22,829 that report a score; it scores higher than 24% of them and lower than 75%. Its site EUI of 74.8 kBtu/ft² is roughly in line with the average of 74.9 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 roughly in line with the group average of 5.2 kgCO₂e/ft².
At 308,337 sq ft, it is about 205% above the average floor area of 100,951 sq ft for those buildings. It was built in 1926, 26 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Park Royal Owners, Inc's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Park Royal Owners, Inc, covering report years 2023–2024. Its ENERGY STAR score went from 88 in 2023 to 40 in 2024 (-48 points); its best year on file was 2023, at 88. Site EUI moved from 49.2 kBtu/ft² (2023) to 74.8 kBtu/ft² (2024), an 52% increase. Reported emissions went from 1,036 tCO₂e to 1,587 tCO₂e over the same span (up 53%).
What does an ENERGY STAR score of 40 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 40 means the building performs better than about 40% of its national peers. BuildingCensus bands the score into report-card grades; 40 falls in band D — lowest band (1–54). It sits 35 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. Park Royal Owners, Inc's 74.8 kBtu/ft² across 308,337 sq ft works out to about 23.1 billion Btu (6,759 MWh-equivalent) in 2024. Its source EUI of 111.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,713,225 kWh of electricity and 172,190 therms of natural gas for the year.
Which law requires Park Royal Owners, Inc to report its energy use?
Park Royal Owners, Inc 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:33955736:2024). 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 multifamily housing buildings in New York City
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- DEPM 1842 - 70-20 108th St· 307,892 sq ft · score 74 (B)
- LEXINGTON Bldgs 3-4· 307,774 sq ft · EUI 136.1 kBtu/ft²
- 360 West 34th Street / 400 9th Avenue - PARENT· 307,736 sq ft · score 48 (D)
- Deepdale Corp 1· 307,636 sq ft · score 17 (D)
- Multifamily Housing buildings in New York City· 33,022 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 Park Royal Owners, Inc's energy grade?
Park Royal Owners, Inc scores 40 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Park Royal Owners, Inc use?
Its 2024 site energy-use intensity was 74.8 kBtu/ft² (111.7 kBtu/ft² source) across 308,337 sq ft, including 1,713,225 kWh of electricity and 172,190 therms of natural gas.
What are Park Royal Owners, Inc's carbon emissions?
Park Royal Owners, Inc reported 1,587 tCO₂e of greenhouse-gas emissions (5.2 kgCO₂e/ft²) for 2024.
Where is Park Royal Owners, Inc?
Park Royal Owners, Inc is at 23 W. 73Rd Street, in New York City, New York 10023. Its coordinates are 40.77718, -73.97611 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Park Royal Owners, Inc and when was it built?
Park Royal Owners, Inc has 308,337 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1926 as its year built. It is classed as multifamily housing.
Is Park Royal Owners, Inc 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, “Park Royal Owners, Inc, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/park-royal-owners-inc-326fb6c4 (data as of October 2, 2026).