Flatiron: 110 Madison Ave.
Multifamily Housing in New York City, NY · 110 Madison Avenue · 10016
At a glance
Flatiron: 110 Madison Ave. is a 33,169-square-foot multifamily housing building at 110 Madison Avenue in New York City, New York, built in 2013. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 34.3 kBtu/ft² and 89 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 34.3 kBtu/ft² |
| Source EUI | 59.9 kBtu/ft² |
| GHG emissions | 89 tCO₂e |
| GHG intensity | 2.7 kgCO₂e/ft² |
| Electricity | 133,016 kWh |
| Natural gas | 6,835 therms |
| Gross floor area | 33,169 sq ft |
| Source record | nyc:6831554:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 34.3 kBtu/ft² | 89 tCO₂e | |
| 2023 | — | 43.7 kBtu/ft² | 109 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 110 Madison Avenue
- City
- New York City
- State
- New York
- ZIP
- 10016
- Coordinates
- 40.74501, -73.98497
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 —
Office · 2,439,745 sq ft
- 11 Madison Avenuescore 77
Office · 2,228,574 sq ft
- (71003A) Herald Square Macy'sscore 70
Retail Store · 2,192,088 sq ft
- One Vanderbilt Avenuescore 43
Office · 1,828,353 sq ft
See also: most efficient in New York City · biggest emitters
How does Flatiron: 110 Madison Ave. 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. Its site EUI of 34.3 kBtu/ft² is about half of 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 2.7 kgCO₂e/ft² is about half of the group average of 5.2 kgCO₂e/ft².
At 33,169 sq ft, it is about 67% below the average floor area of 100,951 sq ft for those buildings. It was built in 2013, 61 years later 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 Flatiron: 110 Madison Ave.'s energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Flatiron: 110 Madison Ave., covering report years 2023–2024. Site EUI moved from 43.7 kBtu/ft² (2023) to 34.3 kBtu/ft² (2024), a 22% decrease. Reported emissions went from 109 tCO₂e to 89 tCO₂e over the same span (down 19%).
What does a site EUI of 34.3 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. Flatiron: 110 Madison Ave.'s 34.3 kBtu/ft² across 33,169 sq ft works out to about 1.1 billion Btu (333 MWh-equivalent) in 2024. Its source EUI of 59.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 133,016 kWh of electricity and 6,835 therms of natural gas for the year.
Which law requires Flatiron: 110 Madison Ave. to report its energy use?
Flatiron: 110 Madison Ave. 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:6831554:2024). 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
- URC (Urban Renaissance)- 765 East 166th St· 33,165 sq ft · score 20 (D)
- 650 Madison St· 33,150 sq ft · score 5 (D)
- 43-45 East 19th Street Owners Corp.· 33,150 sq ft · EUI 171.3 kBtu/ft²
- 45-47 Crosby Street· 33,150 sq ft · EUI 26.8 kBtu/ft²
- Pinnacle - 218 25th Street· 33,150 sq ft · score 76 (B)
- Grunberg : 66 W 77th St· 33,149 sq ft · score 100 (A)
- 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 Flatiron: 110 Madison Ave.'s energy grade?
Flatiron: 110 Madison Ave. did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 34.3 kBtu/ft².
How much energy does Flatiron: 110 Madison Ave. use?
Its 2024 site energy-use intensity was 34.3 kBtu/ft² (59.9 kBtu/ft² source) across 33,169 sq ft, including 133,016 kWh of electricity and 6,835 therms of natural gas.
What are Flatiron: 110 Madison Ave.'s carbon emissions?
Flatiron: 110 Madison Ave. reported 89 tCO₂e of greenhouse-gas emissions (2.7 kgCO₂e/ft²) for 2024.
Where is Flatiron: 110 Madison Ave.?
Flatiron: 110 Madison Ave. is at 110 Madison Avenue, in New York City, New York 10016. Its coordinates are 40.74501, -73.98497 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Flatiron: 110 Madison Ave. and when was it built?
Flatiron: 110 Madison Ave. has 33,169 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2013 as its year built. It is classed as multifamily housing.
Is Flatiron: 110 Madison Ave. 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).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Flatiron: 110 Madison Ave., New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/flatiron-110-madison-ave-20885944 (data as of October 2, 2026).