 The National Capital Development Commission (NCDC) formed in 1957 with executive powers and ended four decades of disputes over the shape and design of Lake Burley Griffin — the centrepiece of Griffin's design — and construction was completed in 1964 after four years of work.The completion of the lake finally laid the platform for the development of Griffin's Parliamentary Triangle.Since the initial construction of the lake, various buildings of national importance have been constructed on its shores.