108 St Georges Terrace or Palace Tower is a 50-storey office tower in Perth, Western Australia. Completed in 1988, the building measures 214 metres (702 ft) to its roof and 247 metres (810 ft) to the tip of its communications antenna. It was the tallest building in Perth from its completion in 1988 until 1992 when it was overtaken in height by Central Park. As of 2023, it is the third-tallest building in the city. The concrete tower has a distinctive profile, with a triangular plan.

Central Park is a 51-storey office tower in Perth, Western Australia. The building measures 226 m (741 ft) from its base at St Georges Terrace to the roof, and 249 m (817 ft) to the tip of its communications mast. Upon its completion in 1992, the tower became the tallest building in Perth, and was the 4th tallest in Australia from then till 2005. It is also currently the sixteenth tallest building in Australia and the tallest building in the western half of Australia.