26 East 91st Street AKA 1270 Madison Avenue
Multifamily Housing in New York City, NY · 10128
At a glance
26 East 91st Street AKA 1270 Madison Avenue is a 32,929-square-foot multifamily housing building in New York City, New York, built in 1911. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D), a site energy-use intensity of 132.9 kBtu/ft² and 317 tCO₂e of greenhouse-gas emissions. That score is higher than 0% 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 | 1 (band D) |
| Site EUI | 132.9 kBtu/ft² |
| Source EUI | 212.4 kBtu/ft² |
| GHG emissions | 317 tCO₂e |
| GHG intensity | 9.6 kgCO₂e/ft² |
| Electricity | 401,597 kWh |
| Natural gas | 30,069 therms |
| Gross floor area | 32,929 sq ft |
| Source record | nyc:6113770:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 1 | ±0 | 132.9 kBtu/ft² | 317 tCO₂e |
| 2023 | 1 | ±0 | 190.3 kBtu/ft² | 417 tCO₂e |
| 2022 | 1 | 209.7 kBtu/ft² | 415 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
- 26 East 91st Street AKA 1270 Madison Avenue
- City
- New York City
- State
- New York
- ZIP
- 10128
- Coordinates
- 40.78427, -73.95707
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 26 East 91st Street AKA 1270 Madison Avenue 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. 26 East 91st Street AKA 1270 Madison Avenue's ENERGY STAR score of 1 compares with an average of 63 across the 22,829 that report a score; it scores higher than 0% of them and lower than 97%. Its site EUI of 132.9 kBtu/ft² is about 77% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 9.6 kgCO₂e/ft² is about 85% above the group average of 5.2 kgCO₂e/ft².
At 32,929 sq ft, it is about 67% below the average floor area of 100,951 sq ft for those buildings. It was built in 1911, 41 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 26 East 91st Street AKA 1270 Madison Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 26 East 91st Street AKA 1270 Madison Avenue, covering report years 2022–2024. Its ENERGY STAR score was 1 in both 2022 and 2024. Site EUI moved from 209.7 kBtu/ft² (2022) to 132.9 kBtu/ft² (2024), a 37% decrease. Reported emissions went from 415 tCO₂e to 317 tCO₂e over the same span (down 23%).
What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 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. 26 East 91st Street AKA 1270 Madison Avenue's 132.9 kBtu/ft² across 32,929 sq ft works out to about 4.4 billion Btu (1,283 MWh-equivalent) in 2024. Its source EUI of 212.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 401,597 kWh of electricity and 30,069 therms of natural gas for the year.
Which law requires 26 East 91st Street AKA 1270 Madison Avenue to report its energy use?
26 East 91st Street AKA 1270 Madison Avenue 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:6113770:2024). 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
- 47 Arden Street· 32,928 sq ft · score 67 (C)
- 287 Associates L.P.· 32,928 sq ft · score 3 (D)
- 60 East 55th Street AKA 948 Clarkson Avenue· 32,928 sq ft · score 17 (D)
- 287 Associates, L.P. (287 Prospect Avenue)· 32,928 sq ft · score 4 (D)
- 34-25 150th Place· 32,925 sq ft
- 34-25 Rear 150th Place· 32,925 sq ft
- Multifamily Housing buildings in New York City· 33,022 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 26 East 91st Street AKA 1270 Madison Avenue's energy grade?
26 East 91st Street AKA 1270 Madison Avenue scores 1 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 26 East 91st Street AKA 1270 Madison Avenue use?
Its 2024 site energy-use intensity was 132.9 kBtu/ft² (212.4 kBtu/ft² source) across 32,929 sq ft, including 401,597 kWh of electricity and 30,069 therms of natural gas.
What are 26 East 91st Street AKA 1270 Madison Avenue's carbon emissions?
26 East 91st Street AKA 1270 Madison Avenue reported 317 tCO₂e of greenhouse-gas emissions (9.6 kgCO₂e/ft²) for 2024.
Where is 26 East 91st Street AKA 1270 Madison Avenue?
26 East 91st Street AKA 1270 Madison Avenue is in New York City, New York 10128. Its coordinates are 40.78427, -73.95707 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 26 East 91st Street AKA 1270 Madison Avenue and when was it built?
26 East 91st Street AKA 1270 Madison Avenue has 32,929 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1911 as its year built. It is classed as multifamily housing.
Is 26 East 91st Street AKA 1270 Madison Avenue 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, “26 East 91st Street AKA 1270 Madison Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/26-east-91st-street-aka-1270-madison-avenue-9accbed6 (data as of October 2, 2026).