5 Martin Place is a 19 level Premium Grade office building occupying a highly prominent corner location in the heart of Martin Place. The building, completed in 2015, comprises a redeveloped heritage building and a new tower extension with a large central atrium, triple height foyer and large floor plates.

The heritage component has been extensively modernised while retaining its distinctive features, including the sandstone facades and interconnecting marble clad stairs. The original internal 'light well' has been reinstated throughout to form the central atrium rising from level 1 to level 11. The upper floors feature a full-height glass facade creating a light filled modern workplace with views over Martin Place and the Sydney CBD.