Mahoney
College/University in New York City, NY · 300 Howard Avenue · 10301
At a glance
Mahoney is a 12,982-square-foot college/university building at 300 Howard Avenue in New York City, New York, built in 1935. In its 2023 New York City benchmarking disclosure it reported 0 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | 0 tCO₂e |
| GHG intensity | 0.0 kgCO₂e/ft² |
| Gross floor area | 12,982 sq ft |
| Source record | nyc:15583894:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | — | 0 tCO₂e | |
| 2022 | — | — | 0 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
- 300 Howard Avenue
- City
- New York City
- State
- New York
- ZIP
- 10301
- Coordinates
- 40.62241, -74.08857
Within ~1 km
Nearby benchmarked buildings
- STAPLETONscore 28
Multifamily Housing · 736,450 sq ft
Mixed Use Property · 530,936 sq ft
- 141 PARK HILL AVENUEscore 53
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- 141 Park Hill Avenuescore —
Manufacturing/Industrial Plant · 326,646 sq ft
Multifamily Housing · 326,646 sq ft
Mixed Use Property · 265,467 sq ft
See also: most efficient in New York City · biggest emitters
How does Mahoney compare with other college/university buildings in New York City?
The latest disclosures cover 553 college/university buildings in New York City, out of 48,310 buildings citywide. Its emissions intensity of 0.0 kgCO₂e/ft² is about 100% below the group average of 6.0 kgCO₂e/ft².
At 12,982 sq ft, it is about 94% below the average floor area of 202,329 sq ft for those buildings. It was built in 1935, 12 years earlier than the group's average year built (1947). Across all 24 jurisdictions BuildingCensus covers, the 2,113 college/university buildings average an ENERGY STAR score of 68 and a site EUI of 98.7 kBtu/ft².
How has Mahoney's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Mahoney, covering report years 2022–2023. None of those years carry an ENERGY STAR score or site EUI.
Which law requires Mahoney to report its energy use?
Mahoney 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 2023 disclosure (source record nyc:15583894:2023). 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 college/university buildings in New York City
- 68 5 Ave - Sheila Design Center Annex (<25k sq ft)· 12,951 sq ft · EUI 13.4 kBtu/ft²
- CUNY SC > QC_494_Queens College: G Building· 12,909 sq ft
- CUNY SC > QC_500_Queens College: Honors Center· 12,891 sq ft
- CUNY CC > QCC_556_Queensborough CC: Y2 Building· 12,850 sq ft · EUI 271.3 kBtu/ft²
- CUNY CC > BCC_356_Bronx CC: Havemeyer Lab· 12,121 sq ft
- CUNY CC > KCC_447_Kingsborough CC: Temporary Building #6· 12,071 sq ft
- College/University buildings in New York City· 553 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 Mahoney's energy grade?
Mahoney did not report an ENERGY STAR score in its 2023 disclosure.
How much energy does Mahoney use?
No energy-use intensity was reported for 2023.
What are Mahoney's carbon emissions?
Mahoney reported 0 tCO₂e of greenhouse-gas emissions (0.0 kgCO₂e/ft²) for 2023.
Where is Mahoney?
Mahoney is at 300 Howard Avenue, in New York City, New York 10301. Its coordinates are 40.62241, -74.08857 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Mahoney and when was it built?
Mahoney has 12,982 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1935 as its year built. It is classed as college/university.
Is Mahoney covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “Mahoney, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/mahoney-7e767d7e (data as of October 2, 2026).