NYP Lower Manhattan
Hospital (General Medical & Surgical) in New York City, NY · 170 William St · 10038
At a glance
NYP Lower Manhattan is a 340,100-square-foot hospital (general medical & surgical) at 170 William St in New York City, New York, built in 1953. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 24 out of 100 (grade D), a site energy-use intensity of 280.6 kBtu/ft² and 8,161 tCO₂e of greenhouse-gas emissions. That score is higher than 24% of the 113 scored hospital (general medical & surgical) buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 24 (band D) |
| Site EUI | 280.6 kBtu/ft² |
| Source EUI | 514.2 kBtu/ft² |
| GHG emissions | 8,161 tCO₂e |
| GHG intensity | 24.0 kgCO₂e/ft² |
| Electricity | 11,044,007 kWh |
| Natural gas | 6,900 therms |
| Water use | 9,364 kgal |
| Gross floor area | 340,100 sq ft |
| Source record | nyc:2793804:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 24 | -1 | 280.6 kBtu/ft² | 8,161 tCO₂e |
| 2023 | 25 | +1 | 280.1 kBtu/ft² | 7,923 tCO₂e |
| 2022 | 24 | 281.4 kBtu/ft² | 7,050 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
- 170 William St
- City
- New York City
- State
- New York
- ZIP
- 10038
- Coordinates
- 40.71048, -74.00552
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does NYP Lower Manhattan compare with other hospital (general medical & surgical) buildings in New York City?
The latest disclosures cover 226 hospital (general medical & surgical) buildings in New York City, out of 48,310 buildings citywide. NYP Lower Manhattan's ENERGY STAR score of 24 compares with an average of 61 across the 113 that report a score; it scores higher than 24% of them and lower than 75%. Its site EUI of 280.6 kBtu/ft² is about 13% above the average of 248.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 24.0 kgCO₂e/ft² is about 27% above the group average of 18.9 kgCO₂e/ft².
At 340,100 sq ft, it is about 25% below the average floor area of 450,487 sq ft for those buildings. Its 1953 construction date is close to the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 748 hospital (general medical & surgical) buildings average an ENERGY STAR score of 59 and a site EUI of 238.7 kBtu/ft².
How has NYP Lower Manhattan's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for NYP Lower Manhattan, covering report years 2022–2024. Its ENERGY STAR score was 24 in both 2022 and 2024. Site EUI moved from 281.4 kBtu/ft² (2022) to 280.6 kBtu/ft² (2024), a 0% decrease. Reported emissions went from 7,050 tCO₂e to 8,161 tCO₂e over the same span (up 16%).
What does an ENERGY STAR score of 24 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 24 means the building performs better than about 24% of its national peers. BuildingCensus bands the score into report-card grades; 24 falls in band D — lowest band (1–54). It sits 51 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. NYP Lower Manhattan's 280.6 kBtu/ft² across 340,100 sq ft works out to about 95.4 billion Btu (27,968 MWh-equivalent) in 2024. Its source EUI of 514.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 11,044,007 kWh of electricity, 6,900 therms of natural gas and 9,364 thousand gallons of water for the year.
Which law requires NYP Lower Manhattan to report its energy use?
NYP Lower Manhattan 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:2793804:2024). 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 hospital (general medical & surgical) buildings in New York City
- NYU Langone Orthopedic Hospital· 337,062 sq ft · score 46 (D)
- BHC - 121 DeKalb Avenue· 335,000 sq ft · score 27 (D)
- 3400 Cannon Place Llc,3400-3426 CANNON PLACE· 330,000 sq ft · score 100 (A)
- H+H_9208_Kings County Hospital: Building R· 315,586 sq ft
- The Allen Hospital· 309,145 sq ft · score 54 (D)
- 530 1st Ave· 291,175 sq ft
- Hospital (General Medical & Surgical) buildings in New York City· 226 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 NYP Lower Manhattan's energy grade?
NYP Lower Manhattan scores 24 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 NYP Lower Manhattan use?
Its 2024 site energy-use intensity was 280.6 kBtu/ft² (514.2 kBtu/ft² source) across 340,100 sq ft, including 11,044,007 kWh of electricity and 6,900 therms of natural gas.
What are NYP Lower Manhattan's carbon emissions?
NYP Lower Manhattan reported 8,161 tCO₂e of greenhouse-gas emissions (24.0 kgCO₂e/ft²) for 2024.
Where is NYP Lower Manhattan?
NYP Lower Manhattan is at 170 William St, in New York City, New York 10038. Its coordinates are 40.71048, -74.00552 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is NYP Lower Manhattan and when was it built?
NYP Lower Manhattan has 340,100 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1953 as its year built. It is classed as hospital (general medical & surgical).
Is NYP Lower Manhattan 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, “NYP Lower Manhattan, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/nyp-lower-manhattan-78994bea (data as of October 2, 2026).