45 West 34th Street
Office in New York City, NY · 10001
At a glance
45 West 34th Street is a 89,582-square-foot office building in New York City, New York, built in 1907. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 61 out of 100 (grade C), a site energy-use intensity of 43.9 kBtu/ft² and 452 tCO₂e of greenhouse-gas emissions. That score is higher than 25% 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 | 61 (band C) |
| Site EUI | 43.9 kBtu/ft² |
| Source EUI | 122.8 kBtu/ft² |
| GHG emissions | 452 tCO₂e |
| GHG intensity | 5.0 kgCO₂e/ft² |
| Electricity | 1,151,781 kWh |
| Natural gas | 0 therms |
| Water use | 848 kgal |
| Gross floor area | 89,582 sq ft |
| Source record | nyc:2653190:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 61 | +3 | 43.9 kBtu/ft² | 452 tCO₂e |
| 2023 | 58 | +21 | 55.4 kBtu/ft² | 463 tCO₂e |
| 2022 | 37 | 112.2 kBtu/ft² | 640 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 West 34th Street
- City
- New York City
- State
- New York
- ZIP
- 10001
- Coordinates
- 40.74934, -73.98669
Within ~1 km
Nearby benchmarked buildings
- ESRT - Empire State Buildingscore 78
Office · 2,852,257 sq ft
- PENN 1 (LL97)score —
Office · 2,488,353 sq ft
- PENN 1 (Offices)score —
Office · 2,439,745 sq ft
- One Bryant Parkscore 62
Financial Office · 2,237,686 sq ft
- 11 Madison Avenuescore 77
Office · 2,228,574 sq ft
- (71003A) Herald Square Macy'sscore 70
Retail Store · 2,192,088 sq ft
See also: most efficient in New York City · biggest emitters
How does 45 West 34th 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. 45 West 34th Street's ENERGY STAR score of 61 compares with an average of 72 across the 2,519 that report a score; it scores higher than 25% of them and lower than 74%. Its site EUI of 43.9 kBtu/ft² is about 32% 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 5.0 kgCO₂e/ft² is about 13% below the group average of 5.8 kgCO₂e/ft².
At 89,582 sq ft, it is about 56% below the average floor area of 205,440 sq ft for those buildings. It was built in 1907, 33 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 West 34th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 45 West 34th Street, covering report years 2022–2024. Its ENERGY STAR score went from 37 in 2022 to 61 in 2024 (+24 points). Site EUI moved from 112.2 kBtu/ft² (2022) to 43.9 kBtu/ft² (2024), a 61% decrease. Reported emissions went from 640 tCO₂e to 452 tCO₂e over the same span (down 29%).
What does an ENERGY STAR score of 61 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 61 means the building performs better than about 61% of its national peers. BuildingCensus bands the score into report-card grades; 61 falls in band C — below median (55–69). It sits 14 points below 75, the threshold for ENERGY STAR certification. 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 West 34th Street's 43.9 kBtu/ft² across 89,582 sq ft works out to about 3.9 billion Btu (1,153 MWh-equivalent) in 2024. Its source EUI of 122.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,151,781 kWh of electricity, 0 therms of natural gas and 848 thousand gallons of water for the year.
Which law requires 45 West 34th Street to report its energy use?
45 West 34th 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:2653190:2024). 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
- 71 WEST STREET· 89,570 sq ft · EUI 26.7 kBtu/ft²
- 260 West 36th Street· 89,513 sq ft · score 87 (A)
- D Building· 89,506 sq ft · score 81 (B)
- 511 West 25th Street· 89,436 sq ft · EUI 38.7 kBtu/ft²
- 38 East 32nd Street· 89,413 sq ft · score 90 (A)
- United Capital Corp - 424 E 147th St.· 89,311 sq ft · score 65 (C)
- 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 45 West 34th Street's energy grade?
45 West 34th Street scores 61 out of 100 on ENERGY STAR — band C, below median (55–69) — 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 West 34th Street use?
Its 2024 site energy-use intensity was 43.9 kBtu/ft² (122.8 kBtu/ft² source) across 89,582 sq ft, including 1,151,781 kWh of electricity and 0 therms of natural gas.
What are 45 West 34th Street's carbon emissions?
45 West 34th Street reported 452 tCO₂e of greenhouse-gas emissions (5.0 kgCO₂e/ft²) for 2024.
Where is 45 West 34th Street?
45 West 34th Street is in New York City, New York 10001. Its coordinates are 40.74934, -73.98669 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 45 West 34th Street and when was it built?
45 West 34th Street has 89,582 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1907 as its year built. It is classed as office.
Is 45 West 34th 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).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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 West 34th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/45-west-34th-street-b7a5b391 (data as of October 2, 2026).