The Gage Building

Off Market

18 South Michigan Avenue, Chicago, IL 60603

  • Office
  • General Office
  • 182,618 Sqft

The Gage Building, Chicago, IL 60603 - Office Space

The Gage Building is located at 18 South Michigan Avenue in the Downtown Chicago neighborhood, IL, Chicago, 60603. The Class B Office building was completed in 1899 and features a total of 182,618 Sqft.

There are 114 office spaces for lease in the Downtown Chicago neighborhood, totaling 763,259 Sqft of available office space. The office space availability for the 60603 zip code is 2,055,794 Sqft, in 225 office spaces. The average asking office rent per sq. ft. in Downtown Chicago is $4.54/sqft/year. For Class A office buildings the average office rate is $10.38/sqft/year, for Class B office buildings the average office rate is $2.2/sqft/year.

In Downtown Chicago, there are 20 class B office buildings. In Downtown Chicago, there are a total of 4 LEED certified office buildings. In 1899, the same year The Gage Building was built, 12 more commercial properties (office, industrial, retail) over 50,000 square feet were built in Chicago, featuring 759,284 square feet of commercial space.

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  • City Chicago
  • Neighborhood Downtown Chicago
  • Zip Code 60603
  • Market Urban Chicago
  • Property Type Office - General Office
  • Property Size 182,618 Sqft
  • Lot Size 0.52 Acre
  • Property Tenancy Multi-Tenant
  • Building Class B
  • Year Built 1899

Downtown Chicago Demographics

The average household income in zip code 60603 is $221,184, from a total of 563 households. In terms of employment, there are 99.42 % white-collar and 0.58 % blue-collar jobs in zip code 60603.


  • Total Population20,965
  • Male Population(47.6 %) 9,986
  • Female Population(52.4 %) 10,979
  • Median Age35.00


  • Average Household Income$147,975
  • Median Household Income$112,390
  • Median Income Under 25$8,512
  • Median Income 25-44$118,313
  • Median Income 45-64$144,151
  • Median Income Over 65$74,461


Check out the links below if you're interested in other types of properties for lease or for sale in Downtown Chicago: