Gramercy House, Inc.
Multifamily Housing in New York City, NY · 20-24 E. 20 St. · 10003
At a glance
Gramercy House, Inc. is a 30,000-square-foot multifamily housing building at 20-24 E. 20 St. in New York City, New York, built in 1902. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 60.3 kBtu/ft² and 146 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 60.3 kBtu/ft² |
| Source EUI | 83.4 kBtu/ft² |
| GHG emissions | 146 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 109,661 kWh |
| Natural gas | 1,633 therms |
| Water use | 839 kgal |
| Gross floor area | 30,000 sq ft |
| Source record | nyc:6186923:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 60.3 kBtu/ft² | 146 tCO₂e | |
| 2023 | — | 45.6 kBtu/ft² | 109 tCO₂e | |
| 2022 | — | 60.9 kBtu/ft² | 136 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
- 20-24 E. 20 St.
- City
- New York City
- State
- New York
- ZIP
- 10003
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in New York City · biggest emitters
How does Gramercy House, Inc. 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. Its site EUI of 60.3 kBtu/ft² is about 19% 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 4.9 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 30,000 sq ft, it is about 70% below the average floor area of 100,951 sq ft for those buildings. It was built in 1902, 50 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 Gramercy House, Inc.'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Gramercy House, Inc., covering report years 2022–2024. Site EUI moved from 60.9 kBtu/ft² (2022) to 60.3 kBtu/ft² (2024), a 1% decrease. Reported emissions went from 136 tCO₂e to 146 tCO₂e over the same span (up 8%).
What does a site EUI of 60.3 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. Gramercy House, Inc.'s 60.3 kBtu/ft² across 30,000 sq ft works out to about 1.8 billion Btu (530 MWh-equivalent) in 2024. Its source EUI of 83.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 109,661 kWh of electricity, 1,633 therms of natural gas and 839 thousand gallons of water for the year.
Which law requires Gramercy House, Inc. to report its energy use?
Gramercy House, Inc. 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:6186923:2024). 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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- 885 Grand Street· 29,990 sq ft · score 67 (C)
- 131 Duane Street· 29,989 sq ft · EUI 56.4 kBtu/ft²
- 1792 Lafayette Ave· 29,988 sq ft · score 29 (D)
- Shamco: 535 W 162nd St· 29,987 sq ft · score 30 (D)
- Multifamily Housing buildings in New York City· 33,022 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 Gramercy House, Inc.'s energy grade?
Gramercy House, Inc. did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 60.3 kBtu/ft².
How much energy does Gramercy House, Inc. use?
Its 2024 site energy-use intensity was 60.3 kBtu/ft² (83.4 kBtu/ft² source) across 30,000 sq ft, including 109,661 kWh of electricity and 1,633 therms of natural gas.
What are Gramercy House, Inc.'s carbon emissions?
Gramercy House, Inc. reported 146 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2024.
Where is Gramercy House, Inc.?
Gramercy House, Inc. is at 20-24 E. 20 St., in New York City, New York 10003.
How big is Gramercy House, Inc. and when was it built?
Gramercy House, Inc. has 30,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1902 as its year built. It is classed as multifamily housing.
Is Gramercy House, Inc. 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, “Gramercy House, Inc., New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/gramercy-house-inc-3d6a41b0 (data as of October 2, 2026).