The Residences at PS 186
Multifamily Housing in New York City, NY · 521 W. 145Th Street · 10031
At a glance
The Residences at PS 186 is a 111,824-square-foot multifamily housing building at 521 W. 145Th Street in New York City, New York, built in 1902. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 99 out of 100 (grade A), a site energy-use intensity of 26.6 kBtu/ft² and 262 tCO₂e of greenhouse-gas emissions. That score is higher than 88% 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 | 99 (band A) |
| Site EUI | 26.6 kBtu/ft² |
| Source EUI | 54.2 kBtu/ft² |
| GHG emissions | 262 tCO₂e |
| GHG intensity | 2.3 kgCO₂e/ft² |
| Electricity | 493,005 kWh |
| Natural gas | 12,917 therms |
| Water use | 4,309 kgal |
| Gross floor area | 111,824 sq ft |
| Source record | nyc:5870886:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 99 | +4 | 26.6 kBtu/ft² | 262 tCO₂e |
| 2023 | 95 | +13 | 35.8 kBtu/ft² | 303 tCO₂e |
| 2022 | 82 | 55.0 kBtu/ft² | 380 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
- 521 W. 145Th Street
- City
- New York City
- State
- New York
- ZIP
- 10031
- Coordinates
- 40.82558, -73.94840
Within ~1 km
Nearby benchmarked buildings
- Benchmarking Group - 10score —
College/University · 3,385,955 sq ft
- DREW-HAMILTONscore 46
Multifamily Housing · 1,108,700 sq ft
College/University · 885,656 sq ft
College/University · 620,782 sq ft
- 626 Riverside Drscore 93
Multifamily Housing · 442,500 sq ft
- 300 West 145 Streetscore 31
Multifamily Housing · 339,930 sq ft
See also: most efficient in New York City · biggest emitters
How does The Residences at PS 186 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. The Residences at PS 186's ENERGY STAR score of 99 compares with an average of 63 across the 22,829 that report a score; it scores higher than 88% of them and lower than 10%. Its site EUI of 26.6 kBtu/ft² is about 64% 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 2.3 kgCO₂e/ft² is about 55% below the group average of 5.2 kgCO₂e/ft².
At 111,824 sq ft, it is about 11% above the average floor area of 100,951 sq ft for those buildings. It was built in 1902, 50 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 The Residences at PS 186's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for The Residences at PS 186, covering report years 2022–2024. Its ENERGY STAR score went from 82 in 2022 to 99 in 2024 (+17 points). Site EUI moved from 55.0 kBtu/ft² (2022) to 26.6 kBtu/ft² (2024), a 52% decrease. Reported emissions went from 380 tCO₂e to 262 tCO₂e over the same span (down 31%).
What does an ENERGY STAR score of 99 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 99 means the building performs better than about 99% of its national peers. BuildingCensus bands the score into report-card grades; 99 falls in band A — high performer (85–100). 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. The Residences at PS 186's 26.6 kBtu/ft² across 111,824 sq ft works out to about 3 billion Btu (872 MWh-equivalent) in 2024. Its source EUI of 54.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 493,005 kWh of electricity, 12,917 therms of natural gas and 4,309 thousand gallons of water for the year.
Which law requires The Residences at PS 186 to report its energy use?
The Residences at PS 186 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:5870886:2024). 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
- Diamond: 1574 Beach Ave· 111,815 sq ft · score 87 (A)
- AKAM - 104 West 70th Street· 111,795 sq ft · score 70 (B)
- LOST JK: 224 Highland Blvd· 111,778 sq ft
- Halstead - 446 Kent Ave BK, NY 11249· 111,754 sq ft · score 74 (B)
- 3815 Putnam Avenue West· 111,720 sq ft · score 49 (D)
- AKAM - 130 West 30th Street· 111,713 sq ft · score 22 (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 The Residences at PS 186's energy grade?
The Residences at PS 186 scores 99 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Residences at PS 186 use?
Its 2024 site energy-use intensity was 26.6 kBtu/ft² (54.2 kBtu/ft² source) across 111,824 sq ft, including 493,005 kWh of electricity and 12,917 therms of natural gas.
What are The Residences at PS 186's carbon emissions?
The Residences at PS 186 reported 262 tCO₂e of greenhouse-gas emissions (2.3 kgCO₂e/ft²) for 2024.
Where is The Residences at PS 186?
The Residences at PS 186 is at 521 W. 145Th Street, in New York City, New York 10031. Its coordinates are 40.82558, -73.94840 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is The Residences at PS 186 and when was it built?
The Residences at PS 186 has 111,824 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1902 as its year built. It is classed as multifamily housing.
Is The Residences at PS 186 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, “The Residences at PS 186, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/the-residences-at-ps-186-28fbf88f (data as of October 2, 2026).