The Historic Environment Scotland (HES) funding boosts five projects, including Glasgow's Pollok House and an A-listed doocot in Fife.
Pollok House, an Edwardian mansion home to a prized art collection, was given £260,010 to repair the roof and interiors to ensure the building is watertight.
The Old Custom House at Bowling, West Dunbartonshire, will use its £273,600 grant to renovate the site which is the western entrance to the Clyde and Forth Canal.
Dunbar's Cromwell Harbour, named after Oliver Cromwell who funded repairs in the 17th century, will benefit from £47,840 to shore up the structure so it can continue to be used.
The B-listed Kirkcudbright Town Hall in Dumfries and Galloway was given £36,036 to help fix the fabric of the building as part of a project to turn it into an art gallery and community space.
HES also awarded £38,400 to help renovate the Priory Doocot in Crail, Fife, a 16th-century home for doves.
The money is awarded through the body's building repair grants scheme, which supports repair work to buildings of architectural or historic interest. Priority was given to applicants who demonstrated that investment in their project would result in community benefit.
Martin Fairley, HES head of grants, said: "This scheme is designed to support and highlight Scotland's diverse historic environment and the contribution it makes to communities up and down the country.
"We are pleased to be supporting a wide range of projects and working together with councils, community groups and volunteers amongst others to champion Scotland's historic buildings."
Culture Secretary Fiona Hyslop said: "Scotland is home to a range of fascinating historic buildings, and it is vital that we work together to preserve them for future generations, which is why I have committed to maintain the level of funding available through Historic Environment Scotland's grant schemes."
Source: Herald Scotland