79 Madison Avenue
Office in New York City, NY · 10016
At a glance
79 Madison Avenue is a 240,053-square-foot office building in New York City, New York, built in 1928. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 95 out of 100 (grade A), a site energy-use intensity of 43.5 kBtu/ft² and 1,017 tCO₂e of greenhouse-gas emissions. That score is higher than 87% 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 | 95 (band A) |
| Site EUI | 43.5 kBtu/ft² |
| Source EUI | 88.1 kBtu/ft² |
| GHG emissions | 1,017 tCO₂e |
| GHG intensity | 4.2 kgCO₂e/ft² |
| Electricity | 1,733,446 kWh |
| Natural gas | 0 therms |
| Water use | 1,148 kgal |
| Gross floor area | 240,053 sq ft |
| Source record | nyc:2695083:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 95 | ±0 | 43.5 kBtu/ft² | 1,017 tCO₂e |
| 2023 | 95 | +3 | 38.3 kBtu/ft² | 952 tCO₂e |
| 2022 | 92 | 49.5 kBtu/ft² | 1,019 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
- 79 Madison Avenue
- City
- New York City
- State
- New York
- ZIP
- 10016
- Coordinates
- 40.74410, -73.98562
Within ~1 km
Nearby benchmarked buildings
- ESRT - Empire State Buildingscore 78
Office · 2,852,257 sq ft
- PENN 1 (LL97)score —
Office · 2,488,353 sq ft
- PENN 1 (Offices)score —
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- 11 Madison Avenuescore 77
Office · 2,228,574 sq ft
- (71003A) Herald Square Macy'sscore 70
Retail Store · 2,192,088 sq ft
- 51 Madisonscore 79
Office · 1,485,386 sq ft
See also: most efficient in New York City · biggest emitters
How does 79 Madison Avenue 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. 79 Madison Avenue's ENERGY STAR score of 95 compares with an average of 72 across the 2,519 that report a score; it scores higher than 87% of them and lower than 11%. Its site EUI of 43.5 kBtu/ft² is about 33% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.2 kgCO₂e/ft² is about 27% below the group average of 5.8 kgCO₂e/ft².
At 240,053 sq ft, it is about 17% above the average floor area of 205,440 sq ft for those buildings. It was built in 1928, 12 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 79 Madison Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 79 Madison Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 92 in 2022 to 95 in 2024 (+3 points); its best year on file was 2023, at 95. Site EUI moved from 49.5 kBtu/ft² (2022) to 43.5 kBtu/ft² (2024), a 12% decrease. Reported emissions went from 1,019 tCO₂e to 1,017 tCO₂e over the same span (down 0%).
What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 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. 79 Madison Avenue's 43.5 kBtu/ft² across 240,053 sq ft works out to about 10.4 billion Btu (3,060 MWh-equivalent) in 2024. Its source EUI of 88.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,733,446 kWh of electricity, 0 therms of natural gas and 1,148 thousand gallons of water for the year.
Which law requires 79 Madison Avenue to report its energy use?
79 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:2695083:2024). 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
- 915 BROADWAY· 240,012 sq ft · score 85 (A)
- 2 Gansevoort· 239,825 sq ft · score 91 (A)
- 28-40 West 23rd Street - Building 2· 238,838 sq ft
- 150 Varick Street· 238,681 sq ft · EUI 62.8 kBtu/ft²
- 360 Lexington Avenue· 238,294 sq ft · score 79 (B)
- 360 Lexington Ave· 238,293 sq ft · score 80 (B)
- 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 79 Madison Avenue's energy grade?
79 Madison Avenue scores 95 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 79 Madison Avenue use?
Its 2024 site energy-use intensity was 43.5 kBtu/ft² (88.1 kBtu/ft² source) across 240,053 sq ft, including 1,733,446 kWh of electricity and 0 therms of natural gas.
What are 79 Madison Avenue's carbon emissions?
79 Madison Avenue reported 1,017 tCO₂e of greenhouse-gas emissions (4.2 kgCO₂e/ft²) for 2024.
Where is 79 Madison Avenue?
79 Madison Avenue is in New York City, New York 10016. Its coordinates are 40.74410, -73.98562 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 79 Madison Avenue and when was it built?
79 Madison Avenue has 240,053 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1928 as its year built. It is classed as office.
Is 79 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, “79 Madison Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/79-madison-avenue-e11fa08e (data as of October 2, 2026).