420 42nd Street
Multifamily Housing in New York City, NY · 11232
At a glance
420 42nd Street is a 37,600-square-foot multifamily housing building in New York City, New York, built in 2007. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 79 out of 100 (grade B), a site energy-use intensity of 82.0 kBtu/ft² and 152 tCO₂e of greenhouse-gas emissions. That score is higher than 62% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 79 (band B) |
| Site EUI | 82.0 kBtu/ft² |
| Source EUI | 114.9 kBtu/ft² |
| GHG emissions | 152 tCO₂e |
| GHG intensity | 5.4 kgCO₂e/ft² |
| Electricity | 136,034 kWh |
| Natural gas | 18,536 therms |
| Water use | 1,787 kgal |
| Gross floor area | 37,600 sq ft |
| Source record | nyc:7078757:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 79 | +31 | 82.0 kBtu/ft² | 152 tCO₂e |
| 2023 | 48 | -4 | 104.2 kBtu/ft² | 152 tCO₂e |
| 2022 | 52 | 108.5 kBtu/ft² | 146 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
- 420 42nd Street
- City
- New York City
- State
- New York
- ZIP
- 11232
- Coordinates
- 40.65051, -74.00721
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 420 42nd Street compare with other multifamily housing buildings in New York City?
The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. 420 42nd Street's ENERGY STAR score of 79 compares with an average of 63 across the 22,829 that report a score; it scores higher than 62% of them and lower than 37%. Its site EUI of 82.0 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 5.4 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 37,600 sq ft, it is about 63% below the average floor area of 100,951 sq ft for those buildings. It was built in 2007, 55 years later than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 420 42nd Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 420 42nd Street, covering report years 2022–2024. Its ENERGY STAR score went from 52 in 2022 to 79 in 2024 (+27 points). Site EUI moved from 108.5 kBtu/ft² (2022) to 82.0 kBtu/ft² (2024), a 24% decrease. Reported emissions went from 146 tCO₂e to 152 tCO₂e over the same span (up 4%).
What does an ENERGY STAR score of 79 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 79 means the building performs better than about 79% of its national peers. BuildingCensus bands the score into report-card grades; 79 falls in band B — above median (70–84). 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. 420 42nd Street's 82.0 kBtu/ft² across 37,600 sq ft works out to about 3.1 billion Btu (904 MWh-equivalent) in 2024. Its source EUI of 114.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 136,034 kWh of electricity, 18,536 therms of natural gas and 1,787 thousand gallons of water for the year.
Which law requires 420 42nd Street to report its energy use?
420 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:7078757:2024). 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 multifamily housing buildings in New York City
- 15 Jackson Street· 37,592 sq ft · score 61 (C)
- 15 JACKSON ST.· 37,592 sq ft · score 73 (B)
- 15 Jackson Street· 37,592 sq ft · score 79 (B)
- Bryant· 37,590 sq ft · score 33 (D)
- 912 SARATOGA AVENUE· 37,584 sq ft · score 100 (A)
- Marion Heights Associates, LLC· 37,572 sq ft · score 71 (B)
- Multifamily Housing buildings in New York City· 33,022 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 420 42nd Street's energy grade?
420 42nd Street scores 79 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 420 42nd Street use?
Its 2024 site energy-use intensity was 82.0 kBtu/ft² (114.9 kBtu/ft² source) across 37,600 sq ft, including 136,034 kWh of electricity and 18,536 therms of natural gas.
What are 420 42nd Street's carbon emissions?
420 42nd Street reported 152 tCO₂e of greenhouse-gas emissions (5.4 kgCO₂e/ft²) for 2024.
Where is 420 42nd Street?
420 42nd Street is in New York City, New York 11232. Its coordinates are 40.65051, -74.00721 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 420 42nd Street and when was it built?
420 42nd Street has 37,600 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2007 as its year built. It is classed as multifamily housing.
Is 420 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).
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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, “420 42nd Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/420-42nd-street-0b7ff43d (data as of October 2, 2026).