AC Hotel by Marriott NYC Downtown 151 Maiden Lane
Hotel in New York City, NY · 151 Maiden Lane · 10038
At a glance
AC Hotel by Marriott NYC Downtown 151 Maiden Lane is a 139,891-square-foot hotel in New York City, New York, built in 2018. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 64 out of 100 (grade C), a site energy-use intensity of 70.7 kBtu/ft² and 968 tCO₂e of greenhouse-gas emissions. That score is higher than 66% of the 853 scored hotel buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 64 (band C) |
| Site EUI | 70.7 kBtu/ft² |
| Source EUI | 163.6 kBtu/ft² |
| GHG emissions | 968 tCO₂e |
| GHG intensity | 6.9 kgCO₂e/ft² |
| Electricity | 2,093,628 kWh |
| Natural gas | 27,506 therms |
| Water use | 4,276 kgal |
| Gross floor area | 139,891 sq ft |
| Source record | nyc:12445609:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 64 | -3 | 70.7 kBtu/ft² | 968 tCO₂e |
| 2023 | 67 | +4 | 65.0 kBtu/ft² | 882 tCO₂e |
| 2022 | 63 | 74.0 kBtu/ft² | 778 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
- 151 Maiden Lane
- City
- New York City
- State
- New York
- ZIP
- 10038
- Coordinates
- 40.70571, -74.00540
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does AC Hotel by Marriott NYC Downtown 151 Maiden Lane 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 Hotel by Marriott NYC Downtown 151 Maiden Lane's ENERGY STAR score of 64 compares with an average of 50 across the 853 that report a score; it scores higher than 66% of them and lower than 33%. Its site EUI of 70.7 kBtu/ft² is about 25% 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 6.9 kgCO₂e/ft² is about 11% below the group average of 7.8 kgCO₂e/ft².
At 139,891 sq ft, it is roughly in line with 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 Hotel by Marriott NYC Downtown 151 Maiden Lane's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for AC Hotel by Marriott NYC Downtown 151 Maiden Lane, covering report years 2022–2024. Its ENERGY STAR score went from 63 in 2022 to 64 in 2024 (+1 points); its best year on file was 2023, at 67. Site EUI moved from 74.0 kBtu/ft² (2022) to 70.7 kBtu/ft² (2024), a 4% decrease. Reported emissions went from 778 tCO₂e to 968 tCO₂e over the same span (up 24%).
What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 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 Hotel by Marriott NYC Downtown 151 Maiden Lane's 70.7 kBtu/ft² across 139,891 sq ft works out to about 9.9 billion Btu (2,899 MWh-equivalent) in 2024. Its source EUI of 163.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,093,628 kWh of electricity, 27,506 therms of natural gas and 4,276 thousand gallons of water for the year.
Which law requires AC Hotel by Marriott NYC Downtown 151 Maiden Lane to report its energy use?
AC Hotel by Marriott NYC Downtown 151 Maiden Lane 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:12445609:2024). 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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- 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 Hotel by Marriott NYC Downtown 151 Maiden Lane's energy grade?
AC Hotel by Marriott NYC Downtown 151 Maiden Lane scores 64 out of 100 on ENERGY STAR — band C, below median (55–69) — 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 Hotel by Marriott NYC Downtown 151 Maiden Lane use?
Its 2024 site energy-use intensity was 70.7 kBtu/ft² (163.6 kBtu/ft² source) across 139,891 sq ft, including 2,093,628 kWh of electricity and 27,506 therms of natural gas.
What are AC Hotel by Marriott NYC Downtown 151 Maiden Lane's carbon emissions?
AC Hotel by Marriott NYC Downtown 151 Maiden Lane reported 968 tCO₂e of greenhouse-gas emissions (6.9 kgCO₂e/ft²) for 2024.
Where is AC Hotel by Marriott NYC Downtown 151 Maiden Lane?
AC Hotel by Marriott NYC Downtown 151 Maiden Lane is in New York City, New York 10038. Its coordinates are 40.70571, -74.00540 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is AC Hotel by Marriott NYC Downtown 151 Maiden Lane and when was it built?
AC Hotel by Marriott NYC Downtown 151 Maiden Lane has 139,891 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 Hotel by Marriott NYC Downtown 151 Maiden Lane 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, “AC Hotel by Marriott NYC Downtown 151 Maiden Lane, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/ac-hotel-by-marriott-nyc-downtown-151-maiden-lane-aab86fe4 (data as of October 2, 2026).