Ruppert House Commercial
Office in New York City, NY · 1645 3Rd Avenue · 10128
At a glance
Ruppert House Commercial is a 51,746-square-foot office building at 1645 3Rd Avenue in New York City, New York, built in 1975. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 145.1 kBtu/ft² and 656 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 145.1 kBtu/ft² |
| Source EUI | 267.3 kBtu/ft² |
| GHG emissions | 656 tCO₂e |
| GHG intensity | 12.7 kgCO₂e/ft² |
| Electricity | 1,010,398 kWh |
| Natural gas | 20,040 therms |
| Water use | 16,714 kgal |
| Gross floor area | 51,746 sq ft |
| Source record | nyc:12905413:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 145.1 kBtu/ft² | 656 tCO₂e | |
| 2023 | — | 153.9 kBtu/ft² | 667 tCO₂e | |
| 2022 | — | 163.3 kBtu/ft² | 611 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
- 1645 3Rd Avenue
- City
- New York City
- State
- New York
- ZIP
- 10128
- Coordinates
- 40.78272, -73.95112
Within ~1 km
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- CARVER Bldgs 1-6score 12
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See also: most efficient in New York City · biggest emitters
How does Ruppert House Commercial compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 145.1 kBtu/ft² is about 125% above the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 12.7 kgCO₂e/ft² is about twice the group average of 5.8 kgCO₂e/ft².
At 51,746 sq ft, it is about 75% below the average floor area of 205,440 sq ft for those buildings. It was built in 1975, 35 years later than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Ruppert House Commercial's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Ruppert House Commercial, covering report years 2022–2024. Site EUI moved from 163.3 kBtu/ft² (2022) to 145.1 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 611 tCO₂e to 656 tCO₂e over the same span (up 7%).
What does a site EUI of 145.1 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. Ruppert House Commercial's 145.1 kBtu/ft² across 51,746 sq ft works out to about 7.5 billion Btu (2,200 MWh-equivalent) in 2024. Its source EUI of 267.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,010,398 kWh of electricity, 20,040 therms of natural gas and 16,714 thousand gallons of water for the year.
Which law requires Ruppert House Commercial to report its energy use?
Ruppert House Commercial 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:12905413:2024). 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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- Office buildings in New York City· 3,384 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 Ruppert House Commercial's energy grade?
Ruppert House Commercial did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 145.1 kBtu/ft².
How much energy does Ruppert House Commercial use?
Its 2024 site energy-use intensity was 145.1 kBtu/ft² (267.3 kBtu/ft² source) across 51,746 sq ft, including 1,010,398 kWh of electricity and 20,040 therms of natural gas.
What are Ruppert House Commercial's carbon emissions?
Ruppert House Commercial reported 656 tCO₂e of greenhouse-gas emissions (12.7 kgCO₂e/ft²) for 2024.
Where is Ruppert House Commercial?
Ruppert House Commercial is at 1645 3Rd Avenue, in New York City, New York 10128. Its coordinates are 40.78272, -73.95112 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Ruppert House Commercial and when was it built?
Ruppert House Commercial has 51,746 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1975 as its year built. It is classed as office.
Is Ruppert House Commercial 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, “Ruppert House Commercial, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/ruppert-house-commercial-9c09d0b7 (data as of October 2, 2026).