108 E. 91ST STREET
Multifamily Housing in New York City, NY · 108 E. 91St Street · 10128
At a glance
108 E. 91ST STREET is a 41,600-square-foot multifamily housing building at 108 E. 91St Street in New York City, New York, built in 1928. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 30.3 kBtu/ft² and 97 tCO₂e of greenhouse-gas emissions. That score is higher than 90% 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 | 100 (band A) |
| Site EUI | 30.3 kBtu/ft² |
| Source EUI | 52.4 kBtu/ft² |
| GHG emissions | 97 tCO₂e |
| GHG intensity | 2.3 kgCO₂e/ft² |
| Electricity | 143,349 kWh |
| Natural gas | 7,722 therms |
| Water use | 1,109 kgal |
| Gross floor area | 41,600 sq ft |
| Source record | nyc:6379872:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 30.3 kBtu/ft² | 97 tCO₂e |
| 2023 | 100 | +5 | 43.4 kBtu/ft² | 122 tCO₂e |
| 2022 | 95 | 74.1 kBtu/ft² | 179 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
- 108 E. 91St Street
- City
- New York City
- State
- New York
- ZIP
- 10128
- Coordinates
- 40.78313, -73.95436
Within ~1 km
Nearby benchmarked buildings
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- CARVER Bldgs 1-6score 12
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- Annenbergscore —
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See also: most efficient in New York City · biggest emitters
How does 108 E. 91ST STREET 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. 108 E. 91ST STREET's ENERGY STAR score of 100 compares with an average of 63 across the 22,829 that report a score; it scores higher than 90% of them. Its site EUI of 30.3 kBtu/ft² is about 60% below 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 2.3 kgCO₂e/ft² is about 55% below the group average of 5.2 kgCO₂e/ft².
At 41,600 sq ft, it is about 59% below the average floor area of 100,951 sq ft for those buildings. It was built in 1928, 24 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 108 E. 91ST STREET's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 108 E. 91ST STREET, covering report years 2022–2024. Its ENERGY STAR score went from 95 in 2022 to 100 in 2024 (+5 points); its best year on file was 2023, at 100. Site EUI moved from 74.1 kBtu/ft² (2022) to 30.3 kBtu/ft² (2024), a 59% decrease. Reported emissions went from 179 tCO₂e to 97 tCO₂e over the same span (down 46%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 108 E. 91ST STREET's 30.3 kBtu/ft² across 41,600 sq ft works out to about 1.3 billion Btu (369 MWh-equivalent) in 2024. Its source EUI of 52.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 143,349 kWh of electricity, 7,722 therms of natural gas and 1,109 thousand gallons of water for the year.
Which law requires 108 E. 91ST STREET to report its energy use?
108 E. 91ST STREET 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:6379872:2024). 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 multifamily housing buildings in New York City
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- Woodlawn 278-305 LLC· 41,571 sq ft · score 80 (B)
- A&E - Queens 3 - 39-25 65 Street· 41,558 sq ft · score 82 (B)
- 14 Hope Street· 41,553 sq ft · score 69 (C)
- 518 Fort Washington Ave· 41,552 sq ft · score 51 (D)
- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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Frequently asked questions
What is 108 E. 91ST STREET's energy grade?
108 E. 91ST STREET scores 100 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 108 E. 91ST STREET use?
Its 2024 site energy-use intensity was 30.3 kBtu/ft² (52.4 kBtu/ft² source) across 41,600 sq ft, including 143,349 kWh of electricity and 7,722 therms of natural gas.
What are 108 E. 91ST STREET's carbon emissions?
108 E. 91ST STREET reported 97 tCO₂e of greenhouse-gas emissions (2.3 kgCO₂e/ft²) for 2024.
Where is 108 E. 91ST STREET?
108 E. 91ST STREET is at 108 E. 91St Street, in New York City, New York 10128. Its coordinates are 40.78313, -73.95436 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 108 E. 91ST STREET and when was it built?
108 E. 91ST STREET has 41,600 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1928 as its year built. It is classed as multifamily housing.
Is 108 E. 91ST STREET 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, “108 E. 91ST STREET, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/108-e-91st-street-b49c5d6b (data as of October 2, 2026).