Forest Lake, a 1990s residential suburb, is 16 km south-west of central Brisbane. It is immediately south of Inala, and before its formation the area was part of Doolandella.

Forest Lake began conceptually in 1991 as a Delfin housing estate, consisting of 7700 house lots and provision for 120 ha of parks, a shopping centre and school. It was estimated that by 2006 there would be a population of 22,000.

Doolandella lay on the headwaters of the Blunder Creek, and a watercourse and wetland were constructed as a lake, around which the new suburb was designed. Compared with Inala, Forest Lake was upmarket. The Anglican and Uniting Churches opened Forest Lake College in 1994, with separate P-6 and 7-12 campuses, and a small international campus. Forest Lake primary school was opened in 1994, and a high school opened in 2001. With a high proportion of young people in the suburb, a second State primary school was needed in stage 2 of the estate, south of Grand Avenue. Named Grand Avenue, the school was opened in 1999.

Forest Lake shopping village (1997) has two discount department stores, two supermarkets and over 70 shops.

In the north-west of Forest Lake there is a small reserve named Homestead Park. It is the site where the Durack family had their Archerfield homestead.

In 1991 Doolandella had a census population of 336, only a few more than the figure in 1976. In 1996 the Doolandella-Forest Lake census area recorded 6468 people, and in 2001 there were 14,027, two-thirds of the projected total for 2006.

Forest Lake's census populations have been:

census datepopulation
200621,005
201122,426
Further Reading: 

The living forest: Forest Lake, Brisbane, Delfin Lend Lease, Brisbane 2007