42nd Street
Mixed Use Property in New York City, NY · 234 W 42 St. · 10036
At a glance
42nd Street is a 631,262-square-foot mixed use property building at 234 W 42 St. in New York City, New York, built in 1999. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 144.0 kBtu/ft² and 8,438 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 144.0 kBtu/ft² |
| Source EUI | 312.6 kBtu/ft² |
| GHG emissions | 8,438 tCO₂e |
| GHG intensity | 13.4 kgCO₂e/ft² |
| Electricity | 17,064,719 kWh |
| Natural gas | 326,956 therms |
| Gross floor area | 631,262 sq ft |
| Source record | nyc:2678609:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 144.0 kBtu/ft² | 8,438 tCO₂e | |
| 2023 | — | 133.0 kBtu/ft² | 7,671 tCO₂e | |
| 2022 | — | 136.7 kBtu/ft² | 6,265 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
- 234 W 42 St.
- City
- New York City
- State
- New York
- ZIP
- 10036
- Coordinates
- 40.75675, -73.98866
Within ~1 km
Nearby benchmarked buildings
- 1633 Broadway - Paramount Plazascore 75
Office · 2,837,932 sq ft
- 1221 Avenue of the Americasscore 86
Office · 2,636,182 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
- (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 42nd Street compare with other mixed use property buildings in New York City?
The latest disclosures cover 395 mixed use property buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 144.0 kBtu/ft² is about 55% above the average of 92.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 13.4 kgCO₂e/ft² is about 69% above the group average of 7.9 kgCO₂e/ft².
At 631,262 sq ft, it is about 181% above the average floor area of 224,815 sq ft for those buildings. It was built in 1999, 42 years later than the group's average year built (1958). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has 42nd Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 42nd Street, covering report years 2022–2024. Site EUI moved from 136.7 kBtu/ft² (2022) to 144.0 kBtu/ft² (2024), an 5% increase. Reported emissions went from 6,265 tCO₂e to 8,438 tCO₂e over the same span (up 35%).
What does a site EUI of 144.0 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. 42nd Street's 144.0 kBtu/ft² across 631,262 sq ft works out to about 90.9 billion Btu (26,641 MWh-equivalent) in 2024. Its source EUI of 312.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 17,064,719 kWh of electricity and 326,956 therms of natural gas for the year.
Which law requires 42nd Street to report its energy use?
42nd 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:2678609:2024). 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 mixed use property buildings in New York City
- 265 Cherry Street - Data· 627,895 sq ft
- 120 Park Avenue (118 PARK AVENUE)· 594,830 sq ft · EUI 103.2 kBtu/ft²
- 150 East 58th Street· 593,382 sq ft · score 58 (C)
- The Olivia· 555,125 sq ft · EUI 76.8 kBtu/ft²
- LL84 NYU Langone Skirball Building· 554,128 sq ft · EUI 5.1 kBtu/ft²
- KERN57 - 303 East 57th Street· 539,027 sq ft · score 1 (D)
- Mixed Use Property buildings in New York City· 395 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 42nd Street's energy grade?
42nd Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 144.0 kBtu/ft².
How much energy does 42nd Street use?
Its 2024 site energy-use intensity was 144.0 kBtu/ft² (312.6 kBtu/ft² source) across 631,262 sq ft, including 17,064,719 kWh of electricity and 326,956 therms of natural gas.
What are 42nd Street's carbon emissions?
42nd Street reported 8,438 tCO₂e of greenhouse-gas emissions (13.4 kgCO₂e/ft²) for 2024.
Where is 42nd Street?
42nd Street is at 234 W 42 St., in New York City, New York 10036. Its coordinates are 40.75675, -73.98866 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 42nd Street and when was it built?
42nd Street has 631,262 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1999 as its year built. It is classed as mixed use property.
Is 42nd 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, “42nd Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/42nd-street-531baddb (data as of October 2, 2026).