The housebuilder, which reported pre-tax profits of £120.4m in the six months to December 31, said its plans highlight the continuing recovery of the housing market in Scotland.
It is one of a series of housebuilders, including Persimmon and Taylor Wimpey, to have this week highlighted the impact of the government-backed Help to Buy scheme in triggering the revival.
Barratt, which sold homes across the UK worth £1.3 billion in the final six months of 2013, is aiming to open 21 new sites across Scotland in the next 12 months. These include four new sites in the east of Scotland, nine in the west and seven in the north.
Douglas Mcleod, regional director for Barratt Scotland, said: "We have had made a lot of changes to the homes we are building and that really seems to be paying off. We are building a wide variety of homes to suit our customers' needs and in great locations.
"It is clear that plenty of customers think now is a great time to take their next step on the property ladder."