The Capitol Lofts is a building located at 711 Main Street in downtown Houston, Texas. Constructed in 1908, the building was originally used for office space and was converted to residential lofts in the 1990s. The building was the tallest building in Houston and Texas until being surpassed by the Praetorian Building in Dallas, Texas as the tallest building in Texas in 1909. It remained the tallest in Houston until 1910 when surpassed by the Carter Building.