Thomas Block

Off Market

100 Commercial Street, Portland, ME 04101

  • Office
  • General Office
  • 61,657 Sqft

Thomas Block, Portland, ME 04101 - Office Space

Thomas Block is located at 100 Commercial Street in the Downtown Portland neighborhood, ME, Portland, 04101. The Class B Office building was completed in 1980 and features a total of 61,657 Sqft.

There are 37 office spaces for lease in the Downtown Portland neighborhood, totaling 191,595 Sqft of available office space. The office space availability for the 04101 zip code is 209,542 Sqft, in 42 office spaces. The average asking office rent per sq. ft. in Downtown Portland is $22.01/sqft/year. For Class A office buildings the average office rate is $25.66/sqft/year, for Class B office buildings the average office rate is $19.82/sqft/year.

In Downtown Portland, there are 40 class B office buildings. In 1980, the same year Thomas Block was built, 5 more commercial properties (office, industrial, retail) over 50,000 square feet were built in Portland, featuring 336,744 square feet of commercial space.

Nearby Listings

Nearby Properties


  • City Portland
  • Neighborhood Downtown Portland
  • Zip Code 04101
  • Market Portland ME
  • Property Type Office - General Office
  • Property Size 61,657 Sqft
  • Lot Size 0.35 Acre
  • Property Tenancy Multi-Tenant
  • Building Class B
  • Year Built 1980

Downtown Portland Demographics

The average household income in zip code 04101 is $53,885, from a total of 8,797 households. In terms of employment, there are 87.34 % white-collar and 12.66 % blue-collar jobs in zip code 04101.


  • Total Population3,553
  • Male Population(50.7 %) 1,801
  • Female Population(49.3 %) 1,752
  • Median Age34.00


  • Average Household Income$56,466
  • Median Household Income$44,151
  • Median Income Under 25$29,189
  • Median Income 25-44$47,774
  • Median Income 45-64$49,368
  • Median Income Over 65$32,980


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