The 230ft tower crane operated by Carey Group PLC has been set up at the heart of the construction site and is being used to swing parts of the new three-storey extension into place.
The new building is being constructed next to the B-listed Edwardian auditorium, which is at the same time being restored to its former glory.
Approaching the landmark half-way point, construction is still on schedule to finish by the end of next year.
The transformation is being jointly led by Perth and Kinross Council and Horsecross Arts. It will cost around £15 million to build the new theatre and a further £1.5million is being raised to buy extra furniture and fittings.
To learn more about the project VISIT Perth Transform.
