Comunilife Prospect Associates
Multifamily Housing in New York City, NY · 780 Prospect Avenue · 10455
At a glance
Comunilife Prospect Associates is a 32,766-square-foot multifamily housing building at 780 Prospect Avenue in New York City, New York, built in 2009. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 16 out of 100 (grade D), a site energy-use intensity of 99.8 kBtu/ft² and 248 tCO₂e of greenhouse-gas emissions. That score is higher than 10% 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 | 16 (band D) |
| Site EUI | 99.8 kBtu/ft² |
| Source EUI | 169.2 kBtu/ft² |
| GHG emissions | 248 tCO₂e |
| GHG intensity | 7.6 kgCO₂e/ft² |
| Electricity | 353,548 kWh |
| Natural gas | 20,641 therms |
| Gross floor area | 32,766 sq ft |
| Source record | nyc:35092689:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 16 | +7 | 99.8 kBtu/ft² | 248 tCO₂e |
| 2023 | 9 | 109.6 kBtu/ft² | 259 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
- 780 Prospect Avenue
- City
- New York City
- State
- New York
- ZIP
- 10455
- Coordinates
- 40.81896, -73.90190
Within ~1 km
Nearby benchmarked buildings
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- MCKINLEYscore 99
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See also: most efficient in New York City · biggest emitters
How does Comunilife Prospect Associates 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. Comunilife Prospect Associates's ENERGY STAR score of 16 compares with an average of 63 across the 22,829 that report a score; it scores higher than 10% of them and lower than 90%. Its site EUI of 99.8 kBtu/ft² is about 33% 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 7.6 kgCO₂e/ft² is about 46% above the group average of 5.2 kgCO₂e/ft².
At 32,766 sq ft, it is about 68% below 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 Comunilife Prospect Associates's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Comunilife Prospect Associates, covering report years 2023–2024. Its ENERGY STAR score went from 9 in 2023 to 16 in 2024 (+7 points). Site EUI moved from 109.6 kBtu/ft² (2023) to 99.8 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 259 tCO₂e to 248 tCO₂e over the same span (down 4%).
What does an ENERGY STAR score of 16 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 16 means the building performs better than about 16% of its national peers. BuildingCensus bands the score into report-card grades; 16 falls in band D — lowest band (1–54). It sits 59 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. Comunilife Prospect Associates's 99.8 kBtu/ft² across 32,766 sq ft works out to about 3.3 billion Btu (958 MWh-equivalent) in 2024. Its source EUI of 169.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 353,548 kWh of electricity and 20,641 therms of natural gas for the year.
Which law requires Comunilife Prospect Associates to report its energy use?
Comunilife Prospect Associates 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:35092689:2024). 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
- 420 Stockholm· 32,763 sq ft · score 43 (D)
- 950 55 Street· 32,763 sq ft · EUI 20.6 kBtu/ft²
- 3 East 85th Street· 32,762 sq ft · score 77 (B)
- Werber: 40-19 72nd St· 32,761 sq ft · score 85 (A)
- Andrews: 176 West 86 St· 32,758 sq ft · EUI 87.0 kBtu/ft²
- Dafnonas Estates LTD: 77 Eastern Pkwy· 32,753 sq ft · score 93 (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 Comunilife Prospect Associates's energy grade?
Comunilife Prospect Associates scores 16 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 Comunilife Prospect Associates use?
Its 2024 site energy-use intensity was 99.8 kBtu/ft² (169.2 kBtu/ft² source) across 32,766 sq ft, including 353,548 kWh of electricity and 20,641 therms of natural gas.
What are Comunilife Prospect Associates's carbon emissions?
Comunilife Prospect Associates reported 248 tCO₂e of greenhouse-gas emissions (7.6 kgCO₂e/ft²) for 2024.
Where is Comunilife Prospect Associates?
Comunilife Prospect Associates is at 780 Prospect Avenue, in New York City, New York 10455. Its coordinates are 40.81896, -73.90190 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Comunilife Prospect Associates and when was it built?
Comunilife Prospect Associates has 32,766 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 Comunilife Prospect Associates 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, “Comunilife Prospect Associates, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/comunilife-prospect-associates-ecfd2b3e (data as of October 2, 2026).