123 - St. Gregory the Great-School (leased2018)
Mixed Use Property in New York City, NY · 138 W 90th St · 10024
At a glance
123 - St. Gregory the Great-School (leased2018) is a 33,756-square-foot mixed use property building at 138 W 90th St in New York City, New York, built in 1912. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 43.2 kBtu/ft² and 123 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 43.2 kBtu/ft² |
| Source EUI | 62.5 kBtu/ft² |
| GHG emissions | 123 tCO₂e |
| GHG intensity | 3.6 kgCO₂e/ft² |
| Electricity | 104,717 kWh |
| Natural gas | 1 therms |
| Gross floor area | 33,756 sq ft |
| Source record | nyc:6237738:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 43.2 kBtu/ft² | 123 tCO₂e | |
| 2023 | — | 8.2 kBtu/ft² | 29 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
- 138 W 90th St
- City
- New York City
- State
- New York
- ZIP
- 10024
- Coordinates
- 40.78980, -73.97212
Within ~1 km
Nearby benchmarked buildings
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- DOUGLASS I/DOUGLASS IIscore —
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- DOUGLASS Iscore —
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See also: most efficient in New York City · biggest emitters
How does 123 - St. Gregory the Great-School (leased2018) compare with other mixed use property buildings in New York City?
The latest disclosures cover 395 mixed use property buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 43.2 kBtu/ft² is about half of the average of 92.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.6 kgCO₂e/ft² is about half of the group average of 7.9 kgCO₂e/ft².
At 33,756 sq ft, it is about 85% below the average floor area of 224,815 sq ft for those buildings. It was built in 1912, 45 years earlier than the group's average year built (1958). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has 123 - St. Gregory the Great-School (leased2018)'s energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 123 - St. Gregory the Great-School (leased2018), covering report years 2023–2024. Site EUI moved from 8.2 kBtu/ft² (2023) to 43.2 kBtu/ft² (2024), an 427% increase. Reported emissions went from 29 tCO₂e to 123 tCO₂e over the same span (up 320%).
What does a site EUI of 43.2 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. 123 - St. Gregory the Great-School (leased2018)'s 43.2 kBtu/ft² across 33,756 sq ft works out to about 1.5 billion Btu (427 MWh-equivalent) in 2024. Its source EUI of 62.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 104,717 kWh of electricity and 1 therms of natural gas for the year.
Which law requires 123 - St. Gregory the Great-School (leased2018) to report its energy use?
123 - St. Gregory the Great-School (leased2018) 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:6237738:2024). 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 mixed use property buildings in New York City
- 415 West Broadway· 33,660 sq ft · EUI 34.5 kBtu/ft²
- 133-19 Atlantic Ave., Richmond Hill, NY 11418· 33,549 sq ft · EUI 264.8 kBtu/ft²
- 400 JB LIBERTY AVE LLC· 33,296 sq ft · EUI 47.7 kBtu/ft²
- 3202 Linden Place· 32,908 sq ft · EUI 146.8 kBtu/ft²
- SUN WIN REALTY INC· 32,859 sq ft · score 41 (D)
- 127-08 Merrick BLVD· 32,632 sq ft · EUI 35.6 kBtu/ft²
- Mixed Use Property buildings in New York City· 395 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 123 - St. Gregory the Great-School (leased2018)'s energy grade?
123 - St. Gregory the Great-School (leased2018) did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 43.2 kBtu/ft².
How much energy does 123 - St. Gregory the Great-School (leased2018) use?
Its 2024 site energy-use intensity was 43.2 kBtu/ft² (62.5 kBtu/ft² source) across 33,756 sq ft, including 104,717 kWh of electricity and 1 therms of natural gas.
What are 123 - St. Gregory the Great-School (leased2018)'s carbon emissions?
123 - St. Gregory the Great-School (leased2018) reported 123 tCO₂e of greenhouse-gas emissions (3.6 kgCO₂e/ft²) for 2024.
Where is 123 - St. Gregory the Great-School (leased2018)?
123 - St. Gregory the Great-School (leased2018) is at 138 W 90th St, in New York City, New York 10024. Its coordinates are 40.78980, -73.97212 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 123 - St. Gregory the Great-School (leased2018) and when was it built?
123 - St. Gregory the Great-School (leased2018) has 33,756 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1912 as its year built. It is classed as mixed use property.
Is 123 - St. Gregory the Great-School (leased2018) 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, “123 - St. Gregory the Great-School (leased2018), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/123-st-gregory-the-great-school-leased2018-c7363667 (data as of October 2, 2026).