545 Prospect Ass.,LLC (555 Prospect Place)
Multifamily Housing in New York City, NY · 545 Prospect Place · 11238
At a glance
545 Prospect Ass.,LLC (555 Prospect Place) is a 172,800-square-foot multifamily housing building at 545 Prospect Place in New York City, New York, built in 1930. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D), a site energy-use intensity of 198.1 kBtu/ft² and 2,097 tCO₂e of greenhouse-gas emissions. That score is higher than 0% 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 | 1 (band D) |
| Site EUI | 198.1 kBtu/ft² |
| Source EUI | 253.6 kBtu/ft² |
| GHG emissions | 2,097 tCO₂e |
| GHG intensity | 12.1 kgCO₂e/ft² |
| Electricity | 1,317,526 kWh |
| Natural gas | 297,428 therms |
| Gross floor area | 172,800 sq ft |
| Source record | nyc:3541203:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 1 | -94 | 198.1 kBtu/ft² | 2,097 tCO₂e |
| 2023 | 95 | -2 | 26.0 kBtu/ft² | 488 tCO₂e |
| 2022 | 97 | 26.7 kBtu/ft² | 390 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
- 545 Prospect Place
- City
- New York City
- State
- New York
- ZIP
- 11238
- Coordinates
- 40.67550, -73.95850
Within ~1 km
Nearby benchmarked buildings
Museum · 550,409 sq ft
- Bedford Union Armoryscore 33
Multifamily Housing · 527,267 sq ft
Multifamily Housing · 373,445 sq ft
- Bedford Courts III LLCscore 100
Multifamily Housing · 370,568 sq ft
K-12 School · 328,800 sq ft
K-12 School · 324,000 sq ft
See also: most efficient in New York City · biggest emitters
How does 545 Prospect Ass.,LLC (555 Prospect Place) 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. 545 Prospect Ass.,LLC (555 Prospect Place)'s ENERGY STAR score of 1 compares with an average of 63 across the 22,829 that report a score; it scores higher than 0% of them and lower than 97%. Its site EUI of 198.1 kBtu/ft² is about 164% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 12.1 kgCO₂e/ft² is about 133% above the group average of 5.2 kgCO₂e/ft².
At 172,800 sq ft, it is about 71% above the average floor area of 100,951 sq ft for those buildings. It was built in 1930, 22 years earlier 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 545 Prospect Ass.,LLC (555 Prospect Place)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 545 Prospect Ass.,LLC (555 Prospect Place), covering report years 2022–2024. Its ENERGY STAR score went from 97 in 2022 to 1 in 2024 (-96 points); its best year on file was 2022, at 97. Site EUI moved from 26.7 kBtu/ft² (2022) to 198.1 kBtu/ft² (2024), an 642% increase. Reported emissions went from 390 tCO₂e to 2,097 tCO₂e over the same span (up 437%).
What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 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. 545 Prospect Ass.,LLC (555 Prospect Place)'s 198.1 kBtu/ft² across 172,800 sq ft works out to about 34.2 billion Btu (10,032 MWh-equivalent) in 2024. Its source EUI of 253.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,317,526 kWh of electricity and 297,428 therms of natural gas for the year.
Which law requires 545 Prospect Ass.,LLC (555 Prospect Place) to report its energy use?
545 Prospect Ass.,LLC (555 Prospect Place) 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:3541203:2024). 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
- Stonehenge - 555 Sixth Avenue· 172,746 sq ft · score 16 (D)
- Copy of Stonehenge - 555 Sixth Ave· 172,746 sq ft · score 10 (D)
- Palmers Dock, LLC (2033)· 172,738 sq ft · score 50 (D)
- CC - 164 Kent Avenue· 172,738 sq ft · score 11 (D)
- 1049 Fifth Avenue Condominium (1049 Fifth Avenue)· 172,713 sq ft · score 40 (D)
- 2850 West 24th Street· 172,644 sq ft · score 21 (D)
- 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 545 Prospect Ass.,LLC (555 Prospect Place)'s energy grade?
545 Prospect Ass.,LLC (555 Prospect Place) scores 1 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 545 Prospect Ass.,LLC (555 Prospect Place) use?
Its 2024 site energy-use intensity was 198.1 kBtu/ft² (253.6 kBtu/ft² source) across 172,800 sq ft, including 1,317,526 kWh of electricity and 297,428 therms of natural gas.
What are 545 Prospect Ass.,LLC (555 Prospect Place)'s carbon emissions?
545 Prospect Ass.,LLC (555 Prospect Place) reported 2,097 tCO₂e of greenhouse-gas emissions (12.1 kgCO₂e/ft²) for 2024.
Where is 545 Prospect Ass.,LLC (555 Prospect Place)?
545 Prospect Ass.,LLC (555 Prospect Place) is at 545 Prospect Place, in New York City, New York 11238. Its coordinates are 40.67550, -73.95850 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 545 Prospect Ass.,LLC (555 Prospect Place) and when was it built?
545 Prospect Ass.,LLC (555 Prospect Place) has 172,800 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1930 as its year built. It is classed as multifamily housing.
Is 545 Prospect Ass.,LLC (555 Prospect Place) 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, “545 Prospect Ass.,LLC (555 Prospect Place), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/545-prospect-ass-llc-555-prospect-place-d449ea0a (data as of October 2, 2026).