251 West 97 Street Associates
Multifamily Housing in New York City, NY · 251 West 97th Street · 10025
At a glance
251 West 97 Street Associates is a 36,783-square-foot multifamily housing building at 251 West 97th Street in New York City, New York, built in 1910. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 49 out of 100 (grade D), a site energy-use intensity of 97.5 kBtu/ft² and 230 tCO₂e of greenhouse-gas emissions. That score is higher than 31% 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 | 49 (band D) |
| Site EUI | 97.5 kBtu/ft² |
| Source EUI | 132.9 kBtu/ft² |
| GHG emissions | 230 tCO₂e |
| GHG intensity | 6.3 kgCO₂e/ft² |
| Electricity | 187,781 kWh |
| Natural gas | 29,469 therms |
| Water use | 3,585 kgal |
| Gross floor area | 36,783 sq ft |
| Source record | nyc:6586680:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 49 | -19 | 97.5 kBtu/ft² | 230 tCO₂e |
| 2023 | 68 | ±0 | 82.0 kBtu/ft² | 194 tCO₂e |
| 2022 | 68 | 90.0 kBtu/ft² | 194 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
- 251 West 97th Street
- City
- New York City
- State
- New York
- ZIP
- 10025
- Coordinates
- 40.79555, -73.97180
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 251 West 97 Street Associates 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. 251 West 97 Street Associates's ENERGY STAR score of 49 compares with an average of 63 across the 22,829 that report a score; it scores higher than 31% of them and lower than 68%. Its site EUI of 97.5 kBtu/ft² is about 30% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 6.3 kgCO₂e/ft² is about 20% above the group average of 5.2 kgCO₂e/ft².
At 36,783 sq ft, it is about 64% below the average floor area of 100,951 sq ft for those buildings. It was built in 1910, 42 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 251 West 97 Street Associates's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 251 West 97 Street Associates, covering report years 2022–2024. Its ENERGY STAR score went from 68 in 2022 to 49 in 2024 (-19 points); its best year on file was 2022, at 68. Site EUI moved from 90.0 kBtu/ft² (2022) to 97.5 kBtu/ft² (2024), an 8% increase. Reported emissions went from 194 tCO₂e to 230 tCO₂e over the same span (up 18%).
What does an ENERGY STAR score of 49 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 49 means the building performs better than about 49% of its national peers. BuildingCensus bands the score into report-card grades; 49 falls in band D — lowest band (1–54). It sits 26 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. 251 West 97 Street Associates's 97.5 kBtu/ft² across 36,783 sq ft works out to about 3.6 billion Btu (1,051 MWh-equivalent) in 2024. Its source EUI of 132.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 187,781 kWh of electricity, 29,469 therms of natural gas and 3,585 thousand gallons of water for the year.
Which law requires 251 West 97 Street Associates to report its energy use?
251 West 97 Street Associates 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:6586680:2024). 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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Frequently asked questions
What is 251 West 97 Street Associates's energy grade?
251 West 97 Street Associates scores 49 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 251 West 97 Street Associates use?
Its 2024 site energy-use intensity was 97.5 kBtu/ft² (132.9 kBtu/ft² source) across 36,783 sq ft, including 187,781 kWh of electricity and 29,469 therms of natural gas.
What are 251 West 97 Street Associates's carbon emissions?
251 West 97 Street Associates reported 230 tCO₂e of greenhouse-gas emissions (6.3 kgCO₂e/ft²) for 2024.
Where is 251 West 97 Street Associates?
251 West 97 Street Associates is at 251 West 97th Street, in New York City, New York 10025. Its coordinates are 40.79555, -73.97180 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 251 West 97 Street Associates and when was it built?
251 West 97 Street Associates has 36,783 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1910 as its year built. It is classed as multifamily housing.
Is 251 West 97 Street Associates 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, “251 West 97 Street Associates, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/251-west-97-street-associates-c75cfc9e (data as of October 2, 2026).