The Central Business District (located in Ballarat Central) is a large mixed-use office and retail district bounded to the north by railway lines, to the west by Drummond Street, to the south to Grant street and to the east by Princes Street and spanning the floodplain of the Yarrowee River. Lydiard, Sturt Streets, Armstrong, Doveton, Dana Street and Bridge Street (known as Bridge Mall) along with the historic centre of East Ballarat—Main Street and Bakery Hill have retained stands of commercial and civic buildings of state and national heritage significance.