115 Willow Street Corp.
Multifamily Housing in New York City, NY · 115 Willow Street · 11201
At a glance
115 Willow Street Corp. is a 55,279-square-foot multifamily housing building in New York City, New York, built in 1927. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 88 out of 100 (grade A), a site energy-use intensity of 66.3 kBtu/ft² and 230 tCO₂e of greenhouse-gas emissions. That score is higher than 74% 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 | 88 (band A) |
| Site EUI | 66.3 kBtu/ft² |
| Source EUI | 87.6 kBtu/ft² |
| GHG emissions | 230 tCO₂e |
| GHG intensity | 4.2 kgCO₂e/ft² |
| Electricity | 166,788 kWh |
| Natural gas | 30,938 therms |
| Gross floor area | 55,279 sq ft |
| Source record | nyc:20480741:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 88 | +4 | 66.3 kBtu/ft² | 230 tCO₂e |
| 2023 | 84 | -2 | 69.9 kBtu/ft² | 229 tCO₂e |
| 2022 | 86 | 71.7 kBtu/ft² | 221 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
- 115 Willow Street
- City
- New York City
- State
- New York
- ZIP
- 11201
- Coordinates
- 40.69754, -73.99573
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 115 Willow Street Corp. 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. 115 Willow Street Corp.'s ENERGY STAR score of 88 compares with an average of 63 across the 22,829 that report a score; it scores higher than 74% of them and lower than 25%. Its site EUI of 66.3 kBtu/ft² is about 11% below 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 4.2 kgCO₂e/ft² is about 20% below the group average of 5.2 kgCO₂e/ft².
At 55,279 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1927, 25 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 115 Willow Street Corp.'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 115 Willow Street Corp., covering report years 2022–2024. Its ENERGY STAR score went from 86 in 2022 to 88 in 2024 (+2 points). Site EUI moved from 71.7 kBtu/ft² (2022) to 66.3 kBtu/ft² (2024), a 8% decrease. Reported emissions went from 221 tCO₂e to 230 tCO₂e over the same span (up 4%).
What does an ENERGY STAR score of 88 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 88 means the building performs better than about 88% of its national peers. BuildingCensus bands the score into report-card grades; 88 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. 115 Willow Street Corp.'s 66.3 kBtu/ft² across 55,279 sq ft works out to about 3.7 billion Btu (1,074 MWh-equivalent) in 2024. Its source EUI of 87.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 166,788 kWh of electricity and 30,938 therms of natural gas for the year.
Which law requires 115 Willow Street Corp. to report its energy use?
115 Willow Street Corp. 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:20480741:2024). 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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- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is 115 Willow Street Corp.'s energy grade?
115 Willow Street Corp. scores 88 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 115 Willow Street Corp. use?
Its 2024 site energy-use intensity was 66.3 kBtu/ft² (87.6 kBtu/ft² source) across 55,279 sq ft, including 166,788 kWh of electricity and 30,938 therms of natural gas.
What are 115 Willow Street Corp.'s carbon emissions?
115 Willow Street Corp. reported 230 tCO₂e of greenhouse-gas emissions (4.2 kgCO₂e/ft²) for 2024.
Where is 115 Willow Street Corp.?
115 Willow Street Corp. is in New York City, New York 11201. Its coordinates are 40.69754, -73.99573 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 115 Willow Street Corp. and when was it built?
115 Willow Street Corp. has 55,279 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1927 as its year built. It is classed as multifamily housing.
Is 115 Willow Street Corp. 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, “115 Willow Street Corp., New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/115-willow-street-corp-4a1b57fe (data as of October 2, 2026).