425 W 121st St. & School of Social Work
College/University in New York City, NY · 425 W 121st St · 10027
At a glance
425 W 121st St. & School of Social Work is a 267,819-square-foot college/university building in New York City, New York, built in 1900. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 81.5 kBtu/ft² and 1,762 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 81.5 kBtu/ft² |
| Source EUI | 149.1 kBtu/ft² |
| GHG emissions | 1,762 tCO₂e |
| GHG intensity | 6.6 kgCO₂e/ft² |
| Electricity | 2,847,454 kWh |
| Natural gas | 121,175 therms |
| Gross floor area | 267,819 sq ft |
| Source record | nyc:16089229:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 81.5 kBtu/ft² | 1,762 tCO₂e | |
| 2023 | — | 87.7 kBtu/ft² | 1,786 tCO₂e | |
| 2022 | — | 98.3 kBtu/ft² | 1,723 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
- 425 W 121st St
- City
- New York City
- State
- New York
- ZIP
- 10027
- Coordinates
- 40.80977, -73.95812
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 425 W 121st St. & School of Social Work compare with other college/university buildings in New York City?
The latest disclosures cover 553 college/university buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 81.5 kBtu/ft² is about 14% below the average of 94.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 6.6 kgCO₂e/ft² is roughly in line with the group average of 6.0 kgCO₂e/ft².
At 267,819 sq ft, it is about 32% above the average floor area of 202,329 sq ft for those buildings. It was built in 1900, 47 years earlier than the group's average year built (1947). Across all 24 jurisdictions BuildingCensus covers, the 2,113 college/university buildings average an ENERGY STAR score of 68 and a site EUI of 98.7 kBtu/ft².
How has 425 W 121st St. & School of Social Work's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 425 W 121st St. & School of Social Work, covering report years 2022–2024. Site EUI moved from 98.3 kBtu/ft² (2022) to 81.5 kBtu/ft² (2024), a 17% decrease. Reported emissions went from 1,723 tCO₂e to 1,762 tCO₂e over the same span (up 2%).
What does a site EUI of 81.5 kBtu/ft² mean?
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. 425 W 121st St. & School of Social Work's 81.5 kBtu/ft² across 267,819 sq ft works out to about 21.8 billion Btu (6,397 MWh-equivalent) in 2024. Its source EUI of 149.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,847,454 kWh of electricity and 121,175 therms of natural gas for the year.
Which law requires 425 W 121st St. & School of Social Work to report its energy use?
425 W 121st St. & School of Social Work 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:16089229:2024). 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 college/university buildings in New York City
- 721-725 Broadway· 263,213 sq ft
- CUNY SC > QC_536_Queens College: Science Building· 263,196 sq ft · EUI 12.4 kBtu/ft²
- 558 RIVERSIDE DRIVE· 256,528 sq ft · EUI 0.0 kBtu/ft²
- Allan Rosenfield Building· 256,438 sq ft · EUI 241.4 kBtu/ft²
- Allan Rosenfield LL97 Building· 256,438 sq ft · EUI 241.4 kBtu/ft²
- Jerome Greene Law School· 255,519 sq ft
- College/University buildings in New York City· 553 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 425 W 121st St. & School of Social Work's energy grade?
425 W 121st St. & School of Social Work did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 81.5 kBtu/ft².
How much energy does 425 W 121st St. & School of Social Work use?
Its 2024 site energy-use intensity was 81.5 kBtu/ft² (149.1 kBtu/ft² source) across 267,819 sq ft, including 2,847,454 kWh of electricity and 121,175 therms of natural gas.
What are 425 W 121st St. & School of Social Work's carbon emissions?
425 W 121st St. & School of Social Work reported 1,762 tCO₂e of greenhouse-gas emissions (6.6 kgCO₂e/ft²) for 2024.
Where is 425 W 121st St. & School of Social Work?
425 W 121st St. & School of Social Work is in New York City, New York 10027. Its coordinates are 40.80977, -73.95812 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 425 W 121st St. & School of Social Work and when was it built?
425 W 121st St. & School of Social Work has 267,819 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1900 as its year built. It is classed as college/university.
Is 425 W 121st St. & School of Social Work 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, “425 W 121st St. & School of Social Work, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/425-w-121st-st-amp-school-of-social-work-41d9cbbb (data as of October 2, 2026).