525 Neptune Ave
Multifamily Housing in New York City, NY · 525 NEPTUNE AVENUE · 11228
At a glance
525 Neptune Ave is a 600,000-square-foot multifamily housing building at 525 NEPTUNE AVENUE in New York City, New York, built in 1965. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 6.0 kBtu/ft² and 192 tCO₂e of greenhouse-gas emissions. That score is higher than 90% 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 | 100 (band A) |
| Site EUI | 6.0 kBtu/ft² |
| Source EUI | 6.3 kBtu/ft² |
| GHG emissions | 192 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Natural gas | 36,231 therms |
| Gross floor area | 600,000 sq ft |
| Source record | nyc:6621579:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 6.0 kBtu/ft² | 192 tCO₂e |
| 2023 | 100 | ±0 | 5.9 kBtu/ft² | 189 tCO₂e |
| 2022 | 100 | 5.8 kBtu/ft² | 186 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
- 525 NEPTUNE AVENUE
- City
- New York City
- State
- New York
- ZIP
- 11228
- Coordinates
- 40.57988, -73.97286
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 525 Neptune Ave 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. 525 Neptune Ave's ENERGY STAR score of 100 compares with an average of 63 across the 22,829 that report a score; it scores higher than 90% of them. Its site EUI of 6.0 kBtu/ft² is about 92% 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 0.3 kgCO₂e/ft² is about 94% below the group average of 5.2 kgCO₂e/ft².
At 600,000 sq ft, it is about 494% above the average floor area of 100,951 sq ft for those buildings. It was built in 1965, 13 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 525 Neptune Ave's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 525 Neptune Ave, covering report years 2022–2024. Its ENERGY STAR score was 100 in both 2022 and 2024. Site EUI moved from 5.8 kBtu/ft² (2022) to 6.0 kBtu/ft² (2024), an 3% increase. Reported emissions went from 186 tCO₂e to 192 tCO₂e over the same span (up 3%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. 525 Neptune Ave's 6.0 kBtu/ft² across 600,000 sq ft works out to about 3.6 billion Btu (1,055 MWh-equivalent) in 2024. Its source EUI of 6.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 36,231 therms of natural gas for the year.
Which law requires 525 Neptune Ave to report its energy use?
525 Neptune Ave 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:6621579:2024). 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
- 150 Beach 77th St· 599,734 sq ft · score 100 (A)
- 7400 Shore Front Parkway· 599,679 sq ft · score 100 (A)
- (5550) - Jamie Towers Housing Co.· 598,475 sq ft · score 20 (D)
- 28-10 Jackson Avenue· 597,606 sq ft · score 68 (C)
- Halstead - 50 Riverside Blvd NY, NY 10069· 597,447 sq ft · score 70 (B)
- Pelham Parkway - Bldgs 1-9· 597,100 sq ft · EUI 188.2 kBtu/ft²
- 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 525 Neptune Ave's energy grade?
525 Neptune Ave scores 100 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 525 Neptune Ave use?
Its 2024 site energy-use intensity was 6.0 kBtu/ft² (6.3 kBtu/ft² source) across 600,000 sq ft and 36,231 therms of natural gas.
What are 525 Neptune Ave's carbon emissions?
525 Neptune Ave reported 192 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2024.
Where is 525 Neptune Ave?
525 Neptune Ave is at 525 NEPTUNE AVENUE, in New York City, New York 11228. Its coordinates are 40.57988, -73.97286 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 525 Neptune Ave and when was it built?
525 Neptune Ave has 600,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1965 as its year built. It is classed as multifamily housing.
Is 525 Neptune Ave 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, “525 Neptune Ave, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/525-neptune-ave-2e933758 (data as of October 2, 2026).