The Gregorian
Hotel in New York City, NY · 42 W 35th St · 10001
At a glance
The Gregorian is a 77,220-square-foot hotel at 42 W 35th St in New York City, New York, built in 2000. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 24.6 kBtu/ft² and 171 tCO₂e of greenhouse-gas emissions. That score is higher than 96% of the 853 scored hotel buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 24.6 kBtu/ft² |
| Source EUI | 54.4 kBtu/ft² |
| GHG emissions | 171 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 370,555 kWh |
| Natural gas | 6,320 therms |
| Gross floor area | 77,220 sq ft |
| Source record | nyc:33973189:2023 |
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
- 42 W 35th St
- City
- New York City
- State
- New York
- ZIP
- 10001
- Coordinates
- 40.74974, -73.98562
Within ~1 km
Nearby benchmarked buildings
- ESRT - Empire State Buildingscore 78
Office · 2,852,257 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
- (71003A) Herald Square Macy'sscore 70
Retail Store · 2,192,088 sq ft
- 1515 Broadwayscore 50
Office · 1,932,895 sq ft
See also: most efficient in New York City · biggest emitters
How does The Gregorian 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. The Gregorian's ENERGY STAR score of 100 compares with an average of 50 across the 853 that report a score; it scores higher than 96% of them. Its site EUI of 24.6 kBtu/ft² is about 74% below the average of 94.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.2 kgCO₂e/ft² is about 72% below the group average of 7.8 kgCO₂e/ft².
At 77,220 sq ft, it is about 44% below the average floor area of 137,256 sq ft for those buildings. It was built in 2000, 25 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.
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. The Gregorian's 24.6 kBtu/ft² across 77,220 sq ft works out to about 1.9 billion Btu (557 MWh-equivalent) in 2023. Its source EUI of 54.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 370,555 kWh of electricity and 6,320 therms of natural gas for the year.
Which law requires The Gregorian to report its energy use?
The Gregorian 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 2023 disclosure (source record nyc:33973189:2023). 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
- 508 West 42nd Street (The Out)· 77,141 sq ft
- 230 East 51st Street (The Pod Hotel) - 1038449· 77,055 sq ft
- Archer Manhattan· 76,850 sq ft · score 29 (D)
- Lowell Hotel· 76,670 sq ft · score 27 (D)
- 303 West 46th Street· 75,902 sq ft · score 95 (A)
- 130 West 44th Street· 75,421 sq ft · score 1 (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 The Gregorian's energy grade?
The Gregorian scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Gregorian use?
Its 2023 site energy-use intensity was 24.6 kBtu/ft² (54.4 kBtu/ft² source) across 77,220 sq ft, including 370,555 kWh of electricity and 6,320 therms of natural gas.
What are The Gregorian's carbon emissions?
The Gregorian reported 171 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 2023.
Where is The Gregorian?
The Gregorian is at 42 W 35th St, in New York City, New York 10001. Its coordinates are 40.74974, -73.98562 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is The Gregorian and when was it built?
The Gregorian has 77,220 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2000 as its year built. It is classed as hotel.
Is The Gregorian covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “The Gregorian, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/the-gregorian-69c2e431 (data as of October 2, 2026).