Horan Hall Residence
Residence Hall/Dormitory in New York City, NY · 4381 Post Road · 10471
At a glance
Horan Hall Residence is a 148,224-square-foot residence hall/dormitory at 4381 Post Road in New York City, New York, built in 1990. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 50 out of 100 (grade D), a site energy-use intensity of 97.1 kBtu/ft² and 1,001 tCO₂e of greenhouse-gas emissions. That score is higher than 18% of the 177 scored residence hall/dormitory buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 50 (band D) |
| Site EUI | 97.1 kBtu/ft² |
| Source EUI | 147.0 kBtu/ft² |
| GHG emissions | 1,001 tCO₂e |
| GHG intensity | 6.8 kgCO₂e/ft² |
| Electricity | 1,120,168 kWh |
| Natural gas | 105,660 therms |
| Water use | 4,393 kgal |
| Gross floor area | 148,224 sq ft |
| Source record | nyc:2806383:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 50 | -29 | 97.1 kBtu/ft² | 1,001 tCO₂e |
| 2023 | 79 | +17 | 53.6 kBtu/ft² | 586 tCO₂e |
| 2022 | 62 | 87.2 kBtu/ft² | 774 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
- 4381 Post Road
- City
- New York City
- State
- New York
- ZIP
- 10471
- Coordinates
- 40.89082, -73.89844
Within ~1 km
Nearby benchmarked buildings
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See also: most efficient in New York City · biggest emitters
How does Horan Hall Residence compare with other residence hall/dormitory buildings in New York City?
The latest disclosures cover 343 residence hall/dormitory buildings in New York City, out of 48,310 buildings citywide. Horan Hall Residence's ENERGY STAR score of 50 compares with an average of 69 across the 177 that report a score; it scores higher than 18% of them and lower than 81%. Its site EUI of 97.1 kBtu/ft² is about 22% above the average of 79.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 6.8 kgCO₂e/ft² is about 23% above the group average of 5.5 kgCO₂e/ft².
At 148,224 sq ft, it is about 73% above the average floor area of 85,583 sq ft for those buildings. It was built in 1990, 44 years later than the group's average year built (1947). Across all 24 jurisdictions BuildingCensus covers, the 702 residence hall/dormitory buildings average an ENERGY STAR score of 70 and a site EUI of 70.7 kBtu/ft².
How has Horan Hall Residence's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Horan Hall Residence, covering report years 2022–2024. Its ENERGY STAR score went from 62 in 2022 to 50 in 2024 (-12 points); its best year on file was 2023, at 79. Site EUI moved from 87.2 kBtu/ft² (2022) to 97.1 kBtu/ft² (2024), an 11% increase. Reported emissions went from 774 tCO₂e to 1,001 tCO₂e over the same span (up 29%).
What does an ENERGY STAR score of 50 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 50 means the building performs better than about 50% of its national peers. BuildingCensus bands the score into report-card grades; 50 falls in band D — lowest band (1–54). It sits 25 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. Horan Hall Residence's 97.1 kBtu/ft² across 148,224 sq ft works out to about 14.4 billion Btu (4,218 MWh-equivalent) in 2024. Its source EUI of 147.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,120,168 kWh of electricity, 105,660 therms of natural gas and 4,393 thousand gallons of water for the year.
Which law requires Horan Hall Residence to report its energy use?
Horan Hall Residence 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:2806383:2024). 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 residence hall/dormitory buildings in New York City
- 334 E 26th (Vilcek)· 147,994 sq ft · score 63 (C)
- 24th Street Residence Hall (407 First)· 147,851 sq ft · score 91 (A)
- Alumni Hall· 147,029 sq ft · score 41 (D)
- D'Agostino Hall· 146,061 sq ft · score 100 (A)
- 1925 EASTCHESTER ROAD· 145,302 sq ft · score 1 (D)
- 1945 EASTCHESTER ROAD· 145,302 sq ft
- Residence Hall/Dormitory buildings in New York City· 343 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 Horan Hall Residence's energy grade?
Horan Hall Residence scores 50 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 Horan Hall Residence use?
Its 2024 site energy-use intensity was 97.1 kBtu/ft² (147.0 kBtu/ft² source) across 148,224 sq ft, including 1,120,168 kWh of electricity and 105,660 therms of natural gas.
What are Horan Hall Residence's carbon emissions?
Horan Hall Residence reported 1,001 tCO₂e of greenhouse-gas emissions (6.8 kgCO₂e/ft²) for 2024.
Where is Horan Hall Residence?
Horan Hall Residence is at 4381 Post Road, in New York City, New York 10471. Its coordinates are 40.89082, -73.89844 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Horan Hall Residence and when was it built?
Horan Hall Residence has 148,224 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1990 as its year built. It is classed as residence hall/dormitory.
Is Horan Hall Residence 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, “Horan Hall Residence, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/horan-hall-residence-0e4bf100 (data as of October 2, 2026).