Prime: 4315 Webster Ave
Multifamily Housing in New York City, NY · 4315 Webster Ave · 10470
At a glance
Prime: 4315 Webster Ave is a 61,819-square-foot multifamily housing building in New York City, New York, built in 1958. 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 17.5 kBtu/ft² and 106 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 | 17.5 kBtu/ft² |
| Source EUI | 40.7 kBtu/ft² |
| GHG emissions | 106 tCO₂e |
| GHG intensity | 1.7 kgCO₂e/ft² |
| Electricity | 231,986 kWh |
| Natural gas | 2,883 therms |
| Water use | 3,194 kgal |
| Gross floor area | 61,819 sq ft |
| Source record | nyc:2750218:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 17.5 kBtu/ft² | 106 tCO₂e |
| 2023 | 100 | ±0 | 17.0 kBtu/ft² | 99 tCO₂e |
| 2022 | 100 | 17.1 kBtu/ft² | 81 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
- 4315 Webster Ave
- City
- New York City
- State
- New York
- ZIP
- 10470
- Coordinates
- 40.89961, -73.86200
Within ~1 km
Nearby benchmarked buildings
- The Wakefield Hospital Campusscore 56
Hospital (General Medical & Surgical) · 527,197 sq ft
Multifamily Housing · 266,706 sq ft
Multifamily Housing · 249,248 sq ft
- 613 East 233 Street Garagescore —
Parking · 234,000 sq ft
- Verco: 530 East 234th Streetscore 100
Multifamily Housing · 121,627 sq ft
- 530 E 234th Streetscore 56
Multifamily Housing · 113,670 sq ft
See also: most efficient in New York City · biggest emitters
How does Prime: 4315 Webster 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. Prime: 4315 Webster 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 17.5 kBtu/ft² is about 77% 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 1.7 kgCO₂e/ft² is about 67% below the group average of 5.2 kgCO₂e/ft².
At 61,819 sq ft, it is about 39% below the average floor area of 100,951 sq ft for those buildings. It was built in 1958, 6 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 Prime: 4315 Webster Ave's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Prime: 4315 Webster Ave, covering report years 2022–2024. Its ENERGY STAR score was 100 in both 2022 and 2024. Site EUI moved from 17.1 kBtu/ft² (2022) to 17.5 kBtu/ft² (2024), an 2% increase. Reported emissions went from 81 tCO₂e to 106 tCO₂e over the same span (up 31%).
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. Prime: 4315 Webster Ave's 17.5 kBtu/ft² across 61,819 sq ft works out to about 1.1 billion Btu (317 MWh-equivalent) in 2024. Its source EUI of 40.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 231,986 kWh of electricity, 2,883 therms of natural gas and 3,194 thousand gallons of water for the year.
Which law requires Prime: 4315 Webster Ave to report its energy use?
Prime: 4315 Webster 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:2750218:2024). 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
- 450 95th St, 11209· 61,818 sq ft · score 89 (A)
- 593 Riverside Drive· 61,812 sq ft · score 64 (C)
- Palushaj Realty - 2064 Barnes ave· 61,807 sq ft · score 88 (A)
- 21 Claremont· 61,807 sq ft · score 100 (A)
- 8020 4th Avenue· 61,803 sq ft
- MP Management - 7201 Bay Parkway· 61,800 sq ft · score 78 (B)
- 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 Prime: 4315 Webster Ave's energy grade?
Prime: 4315 Webster 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 Prime: 4315 Webster Ave use?
Its 2024 site energy-use intensity was 17.5 kBtu/ft² (40.7 kBtu/ft² source) across 61,819 sq ft, including 231,986 kWh of electricity and 2,883 therms of natural gas.
What are Prime: 4315 Webster Ave's carbon emissions?
Prime: 4315 Webster Ave reported 106 tCO₂e of greenhouse-gas emissions (1.7 kgCO₂e/ft²) for 2024.
Where is Prime: 4315 Webster Ave?
Prime: 4315 Webster Ave is in New York City, New York 10470. Its coordinates are 40.89961, -73.86200 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Prime: 4315 Webster Ave and when was it built?
Prime: 4315 Webster Ave has 61,819 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1958 as its year built. It is classed as multifamily housing.
Is Prime: 4315 Webster 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).
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, “Prime: 4315 Webster Ave, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/prime-4315-webster-ave-e58c3806 (data as of October 2, 2026).