L+M Prospect Plaza LLC (2040)
Multifamily Housing in New York City, NY · 1797 Park Place · 11233
At a glance
L+M Prospect Plaza LLC (2040) is a 203,442-square-foot multifamily housing building at 1797 Park Place in New York City, New York, built in 2009. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 55 out of 100 (grade C), a site energy-use intensity of 62.9 kBtu/ft² and 871 tCO₂e of greenhouse-gas emissions. That score is higher than 36% 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 | 55 (band C) |
| Site EUI | 62.9 kBtu/ft² |
| Source EUI | 92.6 kBtu/ft² |
| GHG emissions | 871 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 905,189 kWh |
| Natural gas | 97,014 therms |
| Water use | 11,762 kgal |
| Gross floor area | 203,442 sq ft |
| Source record | nyc:4043095:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 55 | -2 | 62.9 kBtu/ft² | 871 tCO₂e |
| 2023 | 57 | -34 | 60.9 kBtu/ft² | 826 tCO₂e |
| 2022 | 91 | 56.3 kBtu/ft² | 649 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
- 1797 Park Place
- City
- New York City
- State
- New York
- ZIP
- 11233
- Coordinates
- 40.67167, -73.91797
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does L+M Prospect Plaza LLC (2040) 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. L+M Prospect Plaza LLC (2040)'s ENERGY STAR score of 55 compares with an average of 63 across the 22,829 that report a score; it scores higher than 36% of them and lower than 63%. Its site EUI of 62.9 kBtu/ft² is about 16% below the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.3 kgCO₂e/ft² is about 18% below the group average of 5.2 kgCO₂e/ft².
At 203,442 sq ft, it is about twice the average floor area of 100,951 sq ft for those buildings. It was built in 2009, 57 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 L+M Prospect Plaza LLC (2040)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for L+M Prospect Plaza LLC (2040), covering report years 2022–2024. Its ENERGY STAR score went from 91 in 2022 to 55 in 2024 (-36 points); its best year on file was 2022, at 91. Site EUI moved from 56.3 kBtu/ft² (2022) to 62.9 kBtu/ft² (2024), an 12% increase. Reported emissions went from 649 tCO₂e to 871 tCO₂e over the same span (up 34%).
What does an ENERGY STAR score of 55 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 55 means the building performs better than about 55% of its national peers. BuildingCensus bands the score into report-card grades; 55 falls in band C — below median (55–69). It sits 20 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. L+M Prospect Plaza LLC (2040)'s 62.9 kBtu/ft² across 203,442 sq ft works out to about 12.8 billion Btu (3,750 MWh-equivalent) in 2024. Its source EUI of 92.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 905,189 kWh of electricity, 97,014 therms of natural gas and 11,762 thousand gallons of water for the year.
Which law requires L+M Prospect Plaza LLC (2040) to report its energy use?
L+M Prospect Plaza LLC (2040) 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:4043095:2024). 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.
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- 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 L+M Prospect Plaza LLC (2040)'s energy grade?
L+M Prospect Plaza LLC (2040) scores 55 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 L+M Prospect Plaza LLC (2040) use?
Its 2024 site energy-use intensity was 62.9 kBtu/ft² (92.6 kBtu/ft² source) across 203,442 sq ft, including 905,189 kWh of electricity and 97,014 therms of natural gas.
What are L+M Prospect Plaza LLC (2040)'s carbon emissions?
L+M Prospect Plaza LLC (2040) reported 871 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2024.
Where is L+M Prospect Plaza LLC (2040)?
L+M Prospect Plaza LLC (2040) is at 1797 Park Place, in New York City, New York 11233. Its coordinates are 40.67167, -73.91797 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is L+M Prospect Plaza LLC (2040) and when was it built?
L+M Prospect Plaza LLC (2040) has 203,442 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2009 as its year built. It is classed as multifamily housing.
Is L+M Prospect Plaza LLC (2040) 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, “L+M Prospect Plaza LLC (2040), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/l-m-prospect-plaza-llc-2040-d68b6c57 (data as of October 2, 2026).