Manhattan Plaza (mn38)
Multifamily Housing in New York City, NY · 400 W 43rd St · 10036
At a glance
Manhattan Plaza (mn38) is a 1,698,128-square-foot multifamily housing building at 400 W 43rd St in New York City, New York, built in 1974. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 19 out of 100 (grade D), a site energy-use intensity of 76.8 kBtu/ft² and 11,583 tCO₂e of greenhouse-gas emissions. That score is higher than 11% 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 | 19 (band D) |
| Site EUI | 76.8 kBtu/ft² |
| Source EUI | 158.1 kBtu/ft² |
| GHG emissions | 11,583 tCO₂e |
| GHG intensity | 6.8 kgCO₂e/ft² |
| Electricity | 22,033,242 kWh |
| Natural gas | 551,823 therms |
| Water use | 70,167 kgal |
| Gross floor area | 1,698,128 sq ft |
| Source record | nyc:3114297:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 19 | -79 | 76.8 kBtu/ft² | 11,583 tCO₂e |
| 2023 | 98 | ±0 | 38.8 kBtu/ft² | 5,134 tCO₂e |
| 2022 | 98 | 40.0 kBtu/ft² | 4,667 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
- 400 W 43rd St
- City
- New York City
- State
- New York
- ZIP
- 10036
- Coordinates
- 40.75930, -73.99264
Within ~1 km
Nearby benchmarked buildings
- Hudson Yards Cogen Campusscore —
Other · 7,739,076 sq ft
- Manhattan Westscore —
Other · 4,153,954 sq ft
- 20-30 Hudson Yardsscore —
Office · 3,810,623 sq ft
- 50 Hudson Yardsscore 76
Office · 2,944,455 sq ft
- The Spiral - 66 Hudson Boulevardscore 82
Office · 2,830,000 sq ft
- PENN 1 (LL97)score —
Office · 2,488,353 sq ft
See also: most efficient in New York City · biggest emitters
How does Manhattan Plaza (mn38) 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. Manhattan Plaza (mn38)'s ENERGY STAR score of 19 compares with an average of 63 across the 22,829 that report a score; it scores higher than 11% of them and lower than 88%. Its site EUI of 76.8 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 6.8 kgCO₂e/ft² is about 31% above the group average of 5.2 kgCO₂e/ft².
At 1,698,128 sq ft, it is about 1582% above the average floor area of 100,951 sq ft for those buildings. It was built in 1974, 22 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 Manhattan Plaza (mn38)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Manhattan Plaza (mn38), covering report years 2022–2024. Its ENERGY STAR score went from 98 in 2022 to 19 in 2024 (-79 points); its best year on file was 2022, at 98. Site EUI moved from 40.0 kBtu/ft² (2022) to 76.8 kBtu/ft² (2024), an 92% increase. Reported emissions went from 4,667 tCO₂e to 11,583 tCO₂e over the same span (up 148%).
What does an ENERGY STAR score of 19 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 19 means the building performs better than about 19% of its national peers. BuildingCensus bands the score into report-card grades; 19 falls in band D — lowest band (1–54). It sits 56 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. Manhattan Plaza (mn38)'s 76.8 kBtu/ft² across 1,698,128 sq ft works out to about 130.4 billion Btu (38,221 MWh-equivalent) in 2024. Its source EUI of 158.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 22,033,242 kWh of electricity, 551,823 therms of natural gas and 70,167 thousand gallons of water for the year.
Which law requires Manhattan Plaza (mn38) to report its energy use?
Manhattan Plaza (mn38) 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:3114297:2024). 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
- Linden Buildings· 1,697,835 sq ft · score 36 (D)
- Gateway Plaza_395 South End Avenue· 1,692,292 sq ft · EUI 50.7 kBtu/ft²
- THROGGS NECK/THROGGS NECK ADDITION CAMPUS· 1,682,250 sq ft · score 1 (D)
- Amalgamated Housing Corporation· 1,678,527 sq ft · score 84 (B)
- MITCHEL· 1,668,042 sq ft · score 5 (D)
- 675 Lincoln Avenue - data· 1,647,363 sq ft · score 100 (A)
- 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 Manhattan Plaza (mn38)'s energy grade?
Manhattan Plaza (mn38) scores 19 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Manhattan Plaza (mn38) use?
Its 2024 site energy-use intensity was 76.8 kBtu/ft² (158.1 kBtu/ft² source) across 1,698,128 sq ft, including 22,033,242 kWh of electricity and 551,823 therms of natural gas.
What are Manhattan Plaza (mn38)'s carbon emissions?
Manhattan Plaza (mn38) reported 11,583 tCO₂e of greenhouse-gas emissions (6.8 kgCO₂e/ft²) for 2024.
Where is Manhattan Plaza (mn38)?
Manhattan Plaza (mn38) is at 400 W 43rd St, in New York City, New York 10036. Its coordinates are 40.75930, -73.99264 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Manhattan Plaza (mn38) and when was it built?
Manhattan Plaza (mn38) has 1,698,128 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1974 as its year built. It is classed as multifamily housing.
Is Manhattan Plaza (mn38) 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, “Manhattan Plaza (mn38), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/manhattan-plaza-mn38-ddf0b3de (data as of October 2, 2026).