Holtz House Condominium (7 E. 20th St.)
Multifamily Housing in New York City, NY · 7 E. 20th St. · 10003
At a glance
Holtz House Condominium (7 E. 20th St.) is a 55,604-square-foot multifamily housing building in New York City, New York, built in 1908. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 39.0 kBtu/ft² and 195 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 39.0 kBtu/ft² |
| Source EUI | 66.6 kBtu/ft² |
| GHG emissions | 195 tCO₂e |
| GHG intensity | 3.5 kgCO₂e/ft² |
| Electricity | 247,772 kWh |
| Natural gas | 282 therms |
| Gross floor area | 55,604 sq ft |
| Source record | nyc:3120807:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 39.0 kBtu/ft² | 195 tCO₂e | |
| 2023 | — | 58.7 kBtu/ft² | 244 tCO₂e | |
| 2022 | — | 67.3 kBtu/ft² | 258 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
- 7 E. 20th St.
- City
- New York City
- State
- New York
- ZIP
- 10003
- Coordinates
- 40.73942, -73.99032
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Holtz House Condominium (7 E. 20th St.) 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 39.0 kBtu/ft² is about half of 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 3.5 kgCO₂e/ft² is about 33% below the group average of 5.2 kgCO₂e/ft².
At 55,604 sq ft, it is about 45% below the average floor area of 100,951 sq ft for those buildings. It was built in 1908, 44 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 Holtz House Condominium (7 E. 20th St.)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Holtz House Condominium (7 E. 20th St.), covering report years 2022–2024. Site EUI moved from 67.3 kBtu/ft² (2022) to 39.0 kBtu/ft² (2024), a 42% decrease. Reported emissions went from 258 tCO₂e to 195 tCO₂e over the same span (down 24%).
What does a site EUI of 39.0 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. Holtz House Condominium (7 E. 20th St.)'s 39.0 kBtu/ft² across 55,604 sq ft works out to about 2.2 billion Btu (636 MWh-equivalent) in 2024. Its source EUI of 66.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 247,772 kWh of electricity and 282 therms of natural gas for the year.
Which law requires Holtz House Condominium (7 E. 20th St.) to report its energy use?
Holtz House Condominium (7 E. 20th St.) 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:3120807:2024). 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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- 22 Mercer St Condominium· 55,597 sq ft
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- 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 Holtz House Condominium (7 E. 20th St.)'s energy grade?
Holtz House Condominium (7 E. 20th St.) did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 39.0 kBtu/ft².
How much energy does Holtz House Condominium (7 E. 20th St.) use?
Its 2024 site energy-use intensity was 39.0 kBtu/ft² (66.6 kBtu/ft² source) across 55,604 sq ft, including 247,772 kWh of electricity and 282 therms of natural gas.
What are Holtz House Condominium (7 E. 20th St.)'s carbon emissions?
Holtz House Condominium (7 E. 20th St.) reported 195 tCO₂e of greenhouse-gas emissions (3.5 kgCO₂e/ft²) for 2024.
Where is Holtz House Condominium (7 E. 20th St.)?
Holtz House Condominium (7 E. 20th St.) is in New York City, New York 10003. Its coordinates are 40.73942, -73.99032 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Holtz House Condominium (7 E. 20th St.) and when was it built?
Holtz House Condominium (7 E. 20th St.) has 55,604 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1908 as its year built. It is classed as multifamily housing.
Is Holtz House Condominium (7 E. 20th St.) 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, “Holtz House Condominium (7 E. 20th St.), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/holtz-house-condominium-7-e-20th-st-41449ad0 (data as of October 2, 2026).