Morgan Manhattan: 434 E 91st St
Self-Storage Facility in New York City, NY · 434 E 91st St · 10128
At a glance
Morgan Manhattan: 434 E 91st St is a 29,372-square-foot self-storage facility in New York City, New York, built in 1920. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 11.4 kBtu/ft² and 31 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 11.4 kBtu/ft² |
| Source EUI | 20.5 kBtu/ft² |
| GHG emissions | 31 tCO₂e |
| GHG intensity | 1.1 kgCO₂e/ft² |
| Electricity | 42,821 kWh |
| Gross floor area | 29,372 sq ft |
| Source record | nyc:6282808:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 11.4 kBtu/ft² | 31 tCO₂e | |
| 2023 | — | 7.8 kBtu/ft² | 22 tCO₂e | |
| 2022 | — | 17.7 kBtu/ft² | 40 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
- 434 E 91st St
- City
- New York City
- State
- New York
- ZIP
- 10128
- Coordinates
- 40.77981, -73.94644
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Morgan Manhattan: 434 E 91st St compare with other self-storage facility buildings in New York City?
The latest disclosures cover 481 self-storage facility buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 11.4 kBtu/ft² is about half of the average of 21.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.1 kgCO₂e/ft² is about 38% below the group average of 1.7 kgCO₂e/ft².
At 29,372 sq ft, it is about 70% below the average floor area of 98,872 sq ft for those buildings. It was built in 1920, 63 years earlier than the group's average year built (1983). Across all 24 jurisdictions BuildingCensus covers, the 3,050 self-storage facility buildings average an ENERGY STAR score of 75 and a site EUI of 9.4 kBtu/ft².
How has Morgan Manhattan: 434 E 91st St's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Morgan Manhattan: 434 E 91st St, covering report years 2022–2024. Site EUI moved from 17.7 kBtu/ft² (2022) to 11.4 kBtu/ft² (2024), a 36% decrease. Reported emissions went from 40 tCO₂e to 31 tCO₂e over the same span (down 23%).
What does a site EUI of 11.4 kBtu/ft² mean?
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. Morgan Manhattan: 434 E 91st St's 11.4 kBtu/ft² across 29,372 sq ft works out to about 0.3 billion Btu (98 MWh-equivalent) in 2024. Its source EUI of 20.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 42,821 kWh of electricity for the year.
Which law requires Morgan Manhattan: 434 E 91st St to report its energy use?
Morgan Manhattan: 434 E 91st St 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:6282808:2024). 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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- 11-02 Queens Plaza· 27,602 sq ft · EUI 23.7 kBtu/ft²
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- Self-Storage Facility buildings in New York City· 481 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 Morgan Manhattan: 434 E 91st St's energy grade?
Morgan Manhattan: 434 E 91st St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 11.4 kBtu/ft².
How much energy does Morgan Manhattan: 434 E 91st St use?
Its 2024 site energy-use intensity was 11.4 kBtu/ft² (20.5 kBtu/ft² source) across 29,372 sq ft, including 42,821 kWh of electricity.
What are Morgan Manhattan: 434 E 91st St's carbon emissions?
Morgan Manhattan: 434 E 91st St reported 31 tCO₂e of greenhouse-gas emissions (1.1 kgCO₂e/ft²) for 2024.
Where is Morgan Manhattan: 434 E 91st St?
Morgan Manhattan: 434 E 91st St is in New York City, New York 10128. Its coordinates are 40.77981, -73.94644 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Morgan Manhattan: 434 E 91st St and when was it built?
Morgan Manhattan: 434 E 91st St has 29,372 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1920 as its year built. It is classed as self-storage facility.
Is Morgan Manhattan: 434 E 91st St 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, “Morgan Manhattan: 434 E 91st St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/morgan-manhattan-434-e-91st-st-9c25be9a (data as of October 2, 2026).