IMP Management LLC - 621 west 46th st
Office in New York City, NY · 621 west 46th st · 10036
At a glance
IMP Management LLC - 621 west 46th st is a 37,100-square-foot office building in New York City, New York, built in 2006. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 108.5 kBtu/ft² and 371 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 108.5 kBtu/ft² |
| Source EUI | 233.3 kBtu/ft² |
| GHG emissions | 371 tCO₂e |
| GHG intensity | 10.0 kgCO₂e/ft² |
| Electricity | 741,919 kWh |
| Natural gas | 14,929 therms |
| Water use | 2,112 kgal |
| Gross floor area | 37,100 sq ft |
| Source record | nyc:6596317:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 108.5 kBtu/ft² | 371 tCO₂e | |
| 2023 | — | 117.6 kBtu/ft² | 377 tCO₂e | |
| 2022 | — | 55.4 kBtu/ft² | 151 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
- 621 west 46th st
- City
- New York City
- State
- New York
- ZIP
- 10036
- Coordinates
- 40.76362, -73.99702
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does IMP Management LLC - 621 west 46th st 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 108.5 kBtu/ft² is about 68% 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 10.0 kgCO₂e/ft² is about 72% above the group average of 5.8 kgCO₂e/ft².
At 37,100 sq ft, it is about 82% below the average floor area of 205,440 sq ft for those buildings. It was built in 2006, 66 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 IMP Management LLC - 621 west 46th st's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for IMP Management LLC - 621 west 46th st, covering report years 2022–2024. Site EUI moved from 55.4 kBtu/ft² (2022) to 108.5 kBtu/ft² (2024), an 96% increase. Reported emissions went from 151 tCO₂e to 371 tCO₂e over the same span (up 145%).
What does a site EUI of 108.5 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. IMP Management LLC - 621 west 46th st's 108.5 kBtu/ft² across 37,100 sq ft works out to about 4 billion Btu (1,180 MWh-equivalent) in 2024. Its source EUI of 233.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 741,919 kWh of electricity, 14,929 therms of natural gas and 2,112 thousand gallons of water for the year.
Which law requires IMP Management LLC - 621 west 46th st to report its energy use?
IMP Management LLC - 621 west 46th 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:6596317:2024). 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 office buildings in New York City
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- Juyi inc.· 37,000 sq ft · score 86 (A)
- Carolyn McLaughlin Community Center· 37,000 sq ft · EUI 33.0 kBtu/ft²
- Greene Tree Management - 331 Park Ave South· 36,921 sq ft · score 9 (D)
- Richard: 36-01 36th Ave.· 36,915 sq ft · score 90 (A)
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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 IMP Management LLC - 621 west 46th st's energy grade?
IMP Management LLC - 621 west 46th st did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 108.5 kBtu/ft².
How much energy does IMP Management LLC - 621 west 46th st use?
Its 2024 site energy-use intensity was 108.5 kBtu/ft² (233.3 kBtu/ft² source) across 37,100 sq ft, including 741,919 kWh of electricity and 14,929 therms of natural gas.
What are IMP Management LLC - 621 west 46th st's carbon emissions?
IMP Management LLC - 621 west 46th st reported 371 tCO₂e of greenhouse-gas emissions (10.0 kgCO₂e/ft²) for 2024.
Where is IMP Management LLC - 621 west 46th st?
IMP Management LLC - 621 west 46th st is in New York City, New York 10036. Its coordinates are 40.76362, -73.99702 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is IMP Management LLC - 621 west 46th st and when was it built?
IMP Management LLC - 621 west 46th st has 37,100 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2006 as its year built. It is classed as office.
Is IMP Management LLC - 621 west 46th 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, “IMP Management LLC - 621 west 46th st, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/imp-management-llc-621-west-46th-st-e1fb6dea (data as of October 2, 2026).