45 Main Associates LLC
Office in New York City, NY · 45 Main Street · 11201
At a glance
45 Main Associates LLC is a 494,933-square-foot office building at 45 Main Street in New York City, New York, built in 1906. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 90 out of 100 (grade A), a site energy-use intensity of 42.0 kBtu/ft² and 1,956 tCO₂e of greenhouse-gas emissions. That score is higher than 74% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 90 (band A) |
| Site EUI | 42.0 kBtu/ft² |
| Source EUI | 92.7 kBtu/ft² |
| GHG emissions | 1,956 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 4,027,417 kWh |
| Natural gas | 70,560 therms |
| Water use | 2,063 kgal |
| Gross floor area | 494,933 sq ft |
| Source record | nyc:9498587:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 90 | +7 | 42.0 kBtu/ft² | 1,956 tCO₂e |
| 2023 | 83 | -7 | 56.5 kBtu/ft² | 2,249 tCO₂e |
| 2022 | 90 | 43.6 kBtu/ft² | 1,529 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 45 Main Street
- City
- New York City
- State
- New York
- ZIP
- 11201
- Coordinates
- 40.70280, -73.99068
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 45 Main Associates LLC 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. 45 Main Associates LLC's ENERGY STAR score of 90 compares with an average of 72 across the 2,519 that report a score; it scores higher than 74% of them and lower than 23%. Its site EUI of 42.0 kBtu/ft² is about 35% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.0 kgCO₂e/ft² is about 32% below the group average of 5.8 kgCO₂e/ft².
At 494,933 sq ft, it is about 141% above the average floor area of 205,440 sq ft for those buildings. It was built in 1906, 34 years earlier 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 45 Main Associates LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 45 Main Associates LLC, covering report years 2022–2024. Its ENERGY STAR score was 90 in both 2022 and 2024. Site EUI moved from 43.6 kBtu/ft² (2022) to 42.0 kBtu/ft² (2024), a 4% decrease. Reported emissions went from 1,529 tCO₂e to 1,956 tCO₂e over the same span (up 28%).
What does an ENERGY STAR score of 90 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In New York City, 43% of scored buildings are at 75 or above.
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. 45 Main Associates LLC's 42.0 kBtu/ft² across 494,933 sq ft works out to about 20.8 billion Btu (6,092 MWh-equivalent) in 2024. Its source EUI of 92.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,027,417 kWh of electricity, 70,560 therms of natural gas and 2,063 thousand gallons of water for the year.
Which law requires 45 Main Associates LLC to report its energy use?
45 Main Associates LLC 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:9498587:2024). 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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- All New York City benchmarked buildings· Local Law 84 (LL84)
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- Biggest emitters in New York City
Frequently asked questions
What is 45 Main Associates LLC's energy grade?
45 Main Associates LLC scores 90 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 45 Main Associates LLC use?
Its 2024 site energy-use intensity was 42.0 kBtu/ft² (92.7 kBtu/ft² source) across 494,933 sq ft, including 4,027,417 kWh of electricity and 70,560 therms of natural gas.
What are 45 Main Associates LLC's carbon emissions?
45 Main Associates LLC reported 1,956 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 2024.
Where is 45 Main Associates LLC?
45 Main Associates LLC is at 45 Main Street, in New York City, New York 11201. Its coordinates are 40.70280, -73.99068 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 45 Main Associates LLC and when was it built?
45 Main Associates LLC has 494,933 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1906 as its year built. It is classed as office.
Is 45 Main Associates LLC 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, “45 Main Associates LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/45-main-associates-llc-1c66c7bd (data as of October 2, 2026).