AC Times Square, NY
Hotel in New York City, NY · 252 W 40th Street · 10018
At a glance
AC Times Square, NY is a 120,566-square-foot hotel at 252 W 40th Street in New York City, New York, built in 2018. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 3 out of 100 (grade D), a site energy-use intensity of 151.2 kBtu/ft² and 1,478 tCO₂e of greenhouse-gas emissions. That score is higher than 6% of the 853 scored hotel buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 3 (band D) |
| Site EUI | 151.2 kBtu/ft² |
| Source EUI | 278.2 kBtu/ft² |
| GHG emissions | 1,478 tCO₂e |
| GHG intensity | 12.3 kgCO₂e/ft² |
| Electricity | 2,411,244 kWh |
| Natural gas | 100,062 therms |
| Water use | 9,885 kgal |
| Gross floor area | 120,566 sq ft |
| Source record | nyc:9685938:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 3 | -3 | 151.2 kBtu/ft² | 1,478 tCO₂e |
| 2023 | 6 | -7 | 129.4 kBtu/ft² | 1,274 tCO₂e |
| 2022 | 13 | 118.0 kBtu/ft² | 981 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 252 W 40th Street
- City
- New York City
- State
- New York
- ZIP
- 10018
- Coordinates
- 40.75537, -73.98937
Within ~1 km
Nearby benchmarked buildings
- ESRT - Empire State Buildingscore 78
Office · 2,852,257 sq ft
- 1633 Broadway - Paramount Plazascore 75
Office · 2,837,932 sq ft
- 1221 Avenue of the Americasscore 86
Office · 2,636,182 sq ft
- PENN 1 (LL97)score —
Office · 2,488,353 sq ft
- PENN 1 (Offices)score —
Office · 2,439,745 sq ft
- One Bryant Parkscore 62
Financial Office · 2,237,686 sq ft
See also: most efficient in New York City · biggest emitters
How does AC Times Square, NY compare with other hotel buildings in New York City?
The latest disclosures cover 970 hotel buildings in New York City, out of 48,310 buildings citywide. AC Times Square, NY's ENERGY STAR score of 3 compares with an average of 50 across the 853 that report a score; it scores higher than 6% of them and lower than 94%. Its site EUI of 151.2 kBtu/ft² is about 60% above the average of 94.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 12.3 kgCO₂e/ft² is about 57% above the group average of 7.8 kgCO₂e/ft².
At 120,566 sq ft, it is about 12% below the average floor area of 137,256 sq ft for those buildings. It was built in 2018, 43 years later than the group's average year built (1975). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has AC Times Square, NY's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for AC Times Square, NY, covering report years 2022–2024. Its ENERGY STAR score went from 13 in 2022 to 3 in 2024 (-10 points); its best year on file was 2022, at 13. Site EUI moved from 118.0 kBtu/ft² (2022) to 151.2 kBtu/ft² (2024), an 28% increase. Reported emissions went from 981 tCO₂e to 1,478 tCO₂e over the same span (up 51%).
What does an ENERGY STAR score of 3 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 3 means the building performs better than about 3% of its national peers. BuildingCensus bands the score into report-card grades; 3 falls in band D — lowest band (1–54). It sits 72 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. AC Times Square, NY's 151.2 kBtu/ft² across 120,566 sq ft works out to about 18.2 billion Btu (5,343 MWh-equivalent) in 2024. Its source EUI of 278.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,411,244 kWh of electricity, 100,062 therms of natural gas and 9,885 thousand gallons of water for the year.
Which law requires AC Times Square, NY to report its energy use?
AC Times Square, NY 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:9685938:2024). 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 hotel buildings in New York City
- 444 Park Avenue South· 120,400 sq ft · score 70 (B)
- Moin Development Corp - 444 Park Ave· 120,400 sq ft · score 1 (D)
- 314 NYC Downtown NY MOXY· 119,889 sq ft · score 40 (D)
- AKA Times Square· 119,704 sq ft · score 13 (D)
- 312 West 37 Street· 119,685 sq ft · score 3 (D)
- Hotel - 312 West 37th Street· 119,676 sq ft · score 5 (D)
- Hotel buildings in New York City· 970 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 AC Times Square, NY's energy grade?
AC Times Square, NY scores 3 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 AC Times Square, NY use?
Its 2024 site energy-use intensity was 151.2 kBtu/ft² (278.2 kBtu/ft² source) across 120,566 sq ft, including 2,411,244 kWh of electricity and 100,062 therms of natural gas.
What are AC Times Square, NY's carbon emissions?
AC Times Square, NY reported 1,478 tCO₂e of greenhouse-gas emissions (12.3 kgCO₂e/ft²) for 2024.
Where is AC Times Square, NY?
AC Times Square, NY is at 252 W 40th Street, in New York City, New York 10018. Its coordinates are 40.75537, -73.98937 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is AC Times Square, NY and when was it built?
AC Times Square, NY has 120,566 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2018 as its year built. It is classed as hotel.
Is AC Times Square, NY 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).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “AC Times Square, NY, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/ac-times-square-ny-925467d6 (data as of October 2, 2026).