Geffner House
Multifamily Housing in New York City, NY · 351 W. 42Nd Street · 10036
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 94 (band A) |
| Site EUI | 90.6 kBtu/ft² |
| Source EUI | 122.0 kBtu/ft² |
| GHG emissions | 859 tCO₂e |
| GHG intensity | 7.3 kgCO₂e/ft² |
| Electricity | 580,607 kWh |
| Natural gas | 4,197 therms |
| Gross floor area | 117,008 sq ft |
| Source record | nyc:10759560:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 94 | +1 | 90.6 kBtu/ft² | 859 tCO₂e |
| 2023 | 93 | -1 | 93.5 kBtu/ft² | 870 tCO₂e |
| 2022 | 94 | 95.0 kBtu/ft² | 826 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
- 351 W. 42Nd Street
- City
- New York City
- State
- New York
- ZIP
- 10036
- Coordinates
- 40.75785, -73.99123
Within ~1 km
Nearby benchmarked buildings
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- PENN 1 (LL97)score —
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- One Bryant Parkscore 62
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- (71003A) Herald Square Macy'sscore 70
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See also: most efficient in New York City · biggest emitters
Frequently asked questions
What is Geffner House's energy grade?
Geffner House scores 94 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 Geffner House use?
Its 2024 site energy-use intensity was 90.6 kBtu/ft² (122.0 kBtu/ft² source) across 117,008 sq ft, including 580,607 kWh of electricity and 4,197 therms of natural gas.
What are Geffner House's carbon emissions?
Geffner House reported 859 tCO₂e of greenhouse-gas emissions (7.3 kgCO₂e/ft²) for 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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Dataset updated . Source: Energy and Water Data Disclosure disclosure, record nyc:10759560:2024.