171 Madison Association
Office in New York City, NY · 171 Madison Avenue · 10016
At a glance
171 Madison Association is a 129,230-square-foot office building at 171 Madison Avenue in New York City, New York, built in 1914. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 72 out of 100 (grade B), a site energy-use intensity of 90.4 kBtu/ft² and 1,100 tCO₂e of greenhouse-gas emissions. That score is higher than 38% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 72 (band B) |
| Site EUI | 90.4 kBtu/ft² |
| Source EUI | 184.9 kBtu/ft² |
| GHG emissions | 1,100 tCO₂e |
| GHG intensity | 8.5 kgCO₂e/ft² |
| Electricity | 1,966,024 kWh |
| Natural gas | 19,516 therms |
| Gross floor area | 129,230 sq ft |
| Source record | nyc:2647367:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 72 | -10 | 90.4 kBtu/ft² | 1,100 tCO₂e |
| 2023 | 82 | +2 | 80.9 kBtu/ft² | 912 tCO₂e |
| 2022 | 80 | 86.2 kBtu/ft² | 846 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
- 171 Madison Avenue
- City
- New York City
- State
- New York
- ZIP
- 10016
- Coordinates
- 40.74726, -73.98332
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 171 Madison Association compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. 171 Madison Association's ENERGY STAR score of 72 compares with an average of 72 across the 2,519 that report a score; it scores higher than 38% of them and lower than 61%. Its site EUI of 90.4 kBtu/ft² is about 40% above the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 8.5 kgCO₂e/ft² is about 47% above the group average of 5.8 kgCO₂e/ft².
At 129,230 sq ft, it is about 37% below the average floor area of 205,440 sq ft for those buildings. It was built in 1914, 26 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 171 Madison Association's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 171 Madison Association, covering report years 2022–2024. Its ENERGY STAR score went from 80 in 2022 to 72 in 2024 (-8 points); its best year on file was 2023, at 82. Site EUI moved from 86.2 kBtu/ft² (2022) to 90.4 kBtu/ft² (2024), an 5% increase. Reported emissions went from 846 tCO₂e to 1,100 tCO₂e over the same span (up 30%).
What does an ENERGY STAR score of 72 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: a score of 72 means the building performs better than about 72% of its national peers. BuildingCensus bands the score into report-card grades; 72 falls in band B — above median (70–84). It sits 3 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. 171 Madison Association's 90.4 kBtu/ft² across 129,230 sq ft works out to about 11.7 billion Btu (3,424 MWh-equivalent) in 2024. Its source EUI of 184.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,966,024 kWh of electricity and 19,516 therms of natural gas for the year.
Which law requires 171 Madison Association to report its energy use?
171 Madison Association 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:2647367:2024). 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 office buildings in New York City
- 40 West 25th Street· 128,965 sq ft · score 94 (A)
- 38 East 19th Street· 128,964 sq ft · EUI 116.9 kBtu/ft²
- 291 Broadway Realty Associates, LLC· 128,940 sq ft · score 73 (B)
- ACHS Management: 238 Bedford Ave· 128,877 sq ft · score 2 (D)
- 139 Centre Street· 127,879 sq ft · score 100 (A)
- 1 East 33rd Street· 127,866 sq ft · score 60 (C)
- Office buildings in New York City· 3,384 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 171 Madison Association's energy grade?
171 Madison Association scores 72 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 171 Madison Association use?
Its 2024 site energy-use intensity was 90.4 kBtu/ft² (184.9 kBtu/ft² source) across 129,230 sq ft, including 1,966,024 kWh of electricity and 19,516 therms of natural gas.
What are 171 Madison Association's carbon emissions?
171 Madison Association reported 1,100 tCO₂e of greenhouse-gas emissions (8.5 kgCO₂e/ft²) for 2024.
Where is 171 Madison Association?
171 Madison Association is at 171 Madison Avenue, in New York City, New York 10016. Its coordinates are 40.74726, -73.98332 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 171 Madison Association and when was it built?
171 Madison Association has 129,230 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1914 as its year built. It is classed as office.
Is 171 Madison Association 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, “171 Madison Association, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/171-madison-association-f3de3e13 (data as of October 2, 2026).