345 Hudson Street (341 HUDSON STREET)
Office in New York City, NY · 341 HUDSON STREET · 10014
At a glance
345 Hudson Street (341 HUDSON STREET) is a 856,538-square-foot office building in New York City, New York, built in 1931. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 40.1 kBtu/ft² and 3,351 tCO₂e of greenhouse-gas emissions. That score is higher than 85% 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 | 94 (band A) |
| Site EUI | 40.1 kBtu/ft² |
| Source EUI | 92.2 kBtu/ft² |
| GHG emissions | 3,351 tCO₂e |
| GHG intensity | 3.9 kgCO₂e/ft² |
| Electricity | 7,166,395 kWh |
| Natural gas | 92,103 therms |
| Water use | 4,017 kgal |
| Gross floor area | 856,538 sq ft |
| Source record | nyc:2379262:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 94 | +1 | 40.1 kBtu/ft² | 3,351 tCO₂e |
| 2023 | 93 | +14 | 43.0 kBtu/ft² | 3,392 tCO₂e |
| 2022 | 79 | 57.3 kBtu/ft² | 3,724 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
- 341 HUDSON STREET
- City
- New York City
- State
- New York
- ZIP
- 10014
- Coordinates
- 40.72744, -74.00731
Within ~1 km
Nearby benchmarked buildings
- 550 Washington Streetscore 89
Office · 1,138,018 sq ft
- 32 Sixth Avenuescore —
Office · 1,128,856 sq ft
Office · 987,755 sq ft
- 375 Hudson (363 HUDSON STREET)score 92
Office · 885,326 sq ft
- 395 Hudson New York LLCscore 93
Office · 731,175 sq ft
- Stellar - CAMPUS - AOAscore —
Office · 615,000 sq ft
See also: most efficient in New York City · biggest emitters
How does 345 Hudson Street (341 HUDSON STREET) 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. 345 Hudson Street (341 HUDSON STREET)'s ENERGY STAR score of 94 compares with an average of 72 across the 2,519 that report a score; it scores higher than 85% of them and lower than 13%. Its site EUI of 40.1 kBtu/ft² is about 38% 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 3.9 kgCO₂e/ft² is about 33% below the group average of 5.8 kgCO₂e/ft².
At 856,538 sq ft, it is about 317% above the average floor area of 205,440 sq ft for those buildings. It was built in 1931, 9 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 345 Hudson Street (341 HUDSON STREET)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 345 Hudson Street (341 HUDSON STREET), covering report years 2022–2024. Its ENERGY STAR score went from 79 in 2022 to 94 in 2024 (+15 points). Site EUI moved from 57.3 kBtu/ft² (2022) to 40.1 kBtu/ft² (2024), a 30% decrease. Reported emissions went from 3,724 tCO₂e to 3,351 tCO₂e over the same span (down 10%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 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. 345 Hudson Street (341 HUDSON STREET)'s 40.1 kBtu/ft² across 856,538 sq ft works out to about 34.3 billion Btu (10,066 MWh-equivalent) in 2024. Its source EUI of 92.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 7,166,395 kWh of electricity, 92,103 therms of natural gas and 4,017 thousand gallons of water for the year.
Which law requires 345 Hudson Street (341 HUDSON STREET) to report its energy use?
345 Hudson Street (341 HUDSON STREET) 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:2379262:2024). 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
- Hearst Tower LL84 - LL84 Submission· 856,000 sq ft · score 55 (C)
- 485 Lexington Avenue· 855,270 sq ft · score 78 (B)
- 3 Times Square Associates LLC· 848,924 sq ft · EUI 57.4 kBtu/ft²
- 100 Pearl Street· 846,479 sq ft · score 74 (B)
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- ESRT - 1400 Broadway (1392 BROADWAY)· 831,071 sq ft · score 85 (A)
- 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 345 Hudson Street (341 HUDSON STREET)'s energy grade?
345 Hudson Street (341 HUDSON STREET) scores 94 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 345 Hudson Street (341 HUDSON STREET) use?
Its 2024 site energy-use intensity was 40.1 kBtu/ft² (92.2 kBtu/ft² source) across 856,538 sq ft, including 7,166,395 kWh of electricity and 92,103 therms of natural gas.
What are 345 Hudson Street (341 HUDSON STREET)'s carbon emissions?
345 Hudson Street (341 HUDSON STREET) reported 3,351 tCO₂e of greenhouse-gas emissions (3.9 kgCO₂e/ft²) for 2024.
Where is 345 Hudson Street (341 HUDSON STREET)?
345 Hudson Street (341 HUDSON STREET) is in New York City, New York 10014. Its coordinates are 40.72744, -74.00731 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 345 Hudson Street (341 HUDSON STREET) and when was it built?
345 Hudson Street (341 HUDSON STREET) has 856,538 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1931 as its year built. It is classed as office.
Is 345 Hudson Street (341 HUDSON STREET) 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, “345 Hudson Street (341 HUDSON STREET), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/345-hudson-street-341-hudson-street-302de709 (data as of October 2, 2026).