The history of Brickell Key real estate can be traced to 1896, when Henry Flagler had a 9-foot (2.7 m) deep channel dug from the mouth of the Miami River. In the process, Mr. Flagler created an off-shore property composed of two small islands. In 1943, a real estate investor, Edward N. Claughton, Sr. acquired the Brickell Key islands and eventually purchased additional bay bottom land to combine them to a 44-acre (180,000 m2) triangle-shaped tract separated from Brickell and Brickell Avenue by only a few hundred feet of water.
In the late 1970s, Swire Properties purchased most of the island real estate property from the Claughton, and began to put into place a master plan that would ultimately transform it into one of the most distinctive island communities in the world.
Also developed by Swire Properties, the Asia Condo is the final project to be constructed on the island. It features 123 total units and 33 floors completed in 2008. 
As of 2000, the population of Brickell Key had 2,189 people (excluding the demographics and population of Brickell and Mary Brickell Village). The zip code for Brickell include 33131. The area covers 0.162 square miles (0.42 km2). As of 2000, there were 1,154 males and 1,035 females. The median age for males were 33.9 years old, while the median age for females were 31.9 years old. The average household size had 1.7 people, while the average family size had 2.5 members. The percentage of married-couple families (among all households) was 30.6%, while the percentage of married-couple families with children (among all households) was 8.2%, and the percentage of single-mother households (among all households) was 1.4%. The percentage of never-married males 15 years old and over was 24.4%, while the percentage of never-married females 15 years old and over was 16.4%.
As of 2000, the percentage of people that speak English not well or not at all made up 5.9% of the population. The percentage of residents born in Florida was 14.9%, the percentage of people born in another U.S. state was 29.1%, and the percentage of native residents but born outside the U.S. was 4.7%, while the percentage of foreign born residents was 51.3%.