Keystone Building
Keystone Building specialises in second storey additions in Sydney’s outer western suburbs. With over 20 years of experience, they create stylish, space-saving home extensions tailored to each client’s lifestyle and budget. Their expert team ensures a smooth process from design to completion, delivering light-filled, practical living spaces.
Unit 1, 29 Coombes Drive, Penrith, New South Wales, Australia, 2750
