PERTHORI REALTY INC: 8402 4th Ave
Multifamily Housing in New York City, NY · 8402 4 AVENUE · 11209
At a glance
PERTHORI REALTY INC: 8402 4th Ave is a 38,520-square-foot multifamily housing building at 8402 4 AVENUE in New York City, New York, built in 1923. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 58 out of 100 (grade C), a site energy-use intensity of 72.7 kBtu/ft² and 169 tCO₂e of greenhouse-gas emissions. That score is higher than 39% 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 | 58 (band C) |
| Site EUI | 72.7 kBtu/ft² |
| Source EUI | 91.0 kBtu/ft² |
| GHG emissions | 169 tCO₂e |
| GHG intensity | 4.4 kgCO₂e/ft² |
| Electricity | 94,455 kWh |
| Natural gas | 24,778 therms |
| Gross floor area | 38,520 sq ft |
| Source record | nyc:25762111:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 58 | +14 | 72.7 kBtu/ft² | 169 tCO₂e |
| 2023 | 44 | +1 | 80.2 kBtu/ft² | 183 tCO₂e |
| 2022 | 43 | 93.2 kBtu/ft² | 193 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
- 8402 4 AVENUE
- City
- New York City
- State
- New York
- ZIP
- 11209
- Coordinates
- 40.62420, -74.02779
Within ~1 km
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How does PERTHORI REALTY INC: 8402 4th 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. PERTHORI REALTY INC: 8402 4th Ave's ENERGY STAR score of 58 compares with an average of 63 across the 22,829 that report a score; it scores higher than 39% of them and lower than 60%. Its site EUI of 72.7 kBtu/ft² is roughly in line with 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 4.4 kgCO₂e/ft² is about 16% below the group average of 5.2 kgCO₂e/ft².
At 38,520 sq ft, it is about 62% below the average floor area of 100,951 sq ft for those buildings. It was built in 1923, 29 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 PERTHORI REALTY INC: 8402 4th Ave's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for PERTHORI REALTY INC: 8402 4th Ave, covering report years 2022–2024. Its ENERGY STAR score went from 43 in 2022 to 58 in 2024 (+15 points). Site EUI moved from 93.2 kBtu/ft² (2022) to 72.7 kBtu/ft² (2024), a 22% decrease. Reported emissions went from 193 tCO₂e to 169 tCO₂e over the same span (down 13%).
What does an ENERGY STAR score of 58 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 58 means the building performs better than about 58% of its national peers. BuildingCensus bands the score into report-card grades; 58 falls in band C — below median (55–69). It sits 17 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. PERTHORI REALTY INC: 8402 4th Ave's 72.7 kBtu/ft² across 38,520 sq ft works out to about 2.8 billion Btu (821 MWh-equivalent) in 2024. Its source EUI of 91.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 94,455 kWh of electricity and 24,778 therms of natural gas for the year.
Which law requires PERTHORI REALTY INC: 8402 4th Ave to report its energy use?
PERTHORI REALTY INC: 8402 4th 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:25762111:2024). 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.
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- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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- Biggest emitters in New York City
Frequently asked questions
What is PERTHORI REALTY INC: 8402 4th Ave's energy grade?
PERTHORI REALTY INC: 8402 4th Ave scores 58 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does PERTHORI REALTY INC: 8402 4th Ave use?
Its 2024 site energy-use intensity was 72.7 kBtu/ft² (91.0 kBtu/ft² source) across 38,520 sq ft, including 94,455 kWh of electricity and 24,778 therms of natural gas.
What are PERTHORI REALTY INC: 8402 4th Ave's carbon emissions?
PERTHORI REALTY INC: 8402 4th Ave reported 169 tCO₂e of greenhouse-gas emissions (4.4 kgCO₂e/ft²) for 2024.
Where is PERTHORI REALTY INC: 8402 4th Ave?
PERTHORI REALTY INC: 8402 4th Ave is at 8402 4 AVENUE, in New York City, New York 11209. Its coordinates are 40.62420, -74.02779 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is PERTHORI REALTY INC: 8402 4th Ave and when was it built?
PERTHORI REALTY INC: 8402 4th Ave has 38,520 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1923 as its year built. It is classed as multifamily housing.
Is PERTHORI REALTY INC: 8402 4th 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, “PERTHORI REALTY INC: 8402 4th Ave, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/perthori-realty-inc-8402-4th-ave-86c3c7a7 (data as of October 2, 2026).