Bulolo Flats is a heritage-listed apartment block at 9 McLachlan Street, Fortitude Valley, City of Brisbane, Queensland, Australia. It was designed by Hennessey, Hennessey & Co and built in 1934 by P H Turner & Co. It was added to the Queensland Heritage Register on 13 November 2008.

Fortitude Valley is an inner suburb of the City of Brisbane, the state capital of Queensland, Australia. In the 2021 census, Fortitude Valley had a population of 9,708 people. The suburb features two pedestrian malls at Brunswick Street Mall and Chinatown, and is one of the hubs of Brisbane's nightlife, renowned for its nightclubs, bars and adult entertainment.