The newly created 5-star Capella Hotel has been created from within the historic sandstone Dept of Education building, an iconic heritage structure located on Bridge Street Sydney.  The hotel comprises 21,000m2 of floor area including 192 guest rooms & suites, plus restaurants, bars, gyms, saunas & wellness centre, function rooms & an indoor swimming pool. The original building was completed in 2 stages 1912 & 1938 with the original architect George McRae at that time well known for the Sydney Town Hall and the Queen Victoria Building (QVB).  The new hotel has involved construction below, within & above the original structure, which presented difficulties many of which required detailed solving as works progressed.  It was essential that the original façade be maintained, this requiring 300 tonnes of progressive steel structure bracing internally as old floors were removed, with the steel bracing then progressively removed as new concrete floors were created and locked into the façade.  Three basements were excavated (total depth 12m) which presented further difficulties due to the need for underpinning of walls, with this excavation further complicated by the proximity of the new Sydney Metro Line, Bennelong Sewer (heritage storm water drain) & serious rock fault lines in the Sydney Sandstone. Very few original structural drawings existed which made the designs of both temporary & permanent structures difficult, & the builder used a point cloud survey system to ensure accuracy of design & construction.  The result is a stunning beautifully finished 5-star hotel, which has been created within an iconic Sydney building located in the centre of the city. This complicated project has required innovative input by the builder throughout reconstruction & construction phases & the end result is a credit to the Built organization & the team involved.