Luck and Mountfort formed a partnership in mid-1857. They co-designed the Canterbury Provincial Council Buildings in Christchurch, which were constructed between 1858 and 1865. On 6 January 1858, the foundation stone was laid by the Superintendent, William Sefton Moorhouse. After attending church at St Michael and All Angels, a procession of Police, a band, dignitaries, provincial councillors, members and officials of the government, bishop and clergy made their way along the Avon River, where Mountfort and Luck handed a ceremonial trowel to the Superintendent and helped him put the foundation stone in place. The buildings, which opened in stages, were first used for a council meeting on 29 September 1859. The Provincial Council Buildings are considered to be the finest Gothic buildings in the Southern Hemisphere, and the buildings have a Category I heritage order with Heritage New Zealand (NZHPT). Luck was the less dominant half of the partnership as credit for their joint work is generally given to the better known Mountfort.