It is the largest-ever closure plan by the company and will radically change the face of the bank, according to Unite.
£75,000 Vandal Damage To Historic Sites
More than £75,000 has been spent repairing vandalism at some of Scotland's most historic landmarks.
Heart's exclusive figures show sites like Glasgow Cathedral, Holyrood Park and Stirling Castle have been targeted 102 times since 2011.
Edinburgh's Holyrood Park was the most vandalised site in the country.
The 650 acre "royal park", home to the iconic Arthur's Seat, has been targeted 44 times in the last 5 years.
Offences range from graffiti to property damage and wilful fire raising.
Historic Scotland Ranger Martin Gray, said: "It's disappointing, but at the same time not surprising.
"The area is surrounded on all sides by urban sprawl, it's accessed by hundreds of thousands of people every year at all times of the day and night.
"The damage ranges from graffiti tags to breaking padlocks and small fire raising.
"It's disappointing that people target things that are of heritage, cultural and natural importance."
In the last year alone, Historic Scotland's repair bill more than trebled from £8,180 to £30,159.
The most costly repair job was at St Bridgets Church, Dalgety Bay in Fife.
£9,300 was spent cleaning spray paint from the ruin, which dates back to the 12th century.
A spokesperson for Historic Environment Scotland, said: "Sadly acts of vandalism sometimes do happen at our properties and over the past five years alone we have invested more than £75,000 to repair damage caused by graffiti, fire and damage to property.
"It is a criminal offence to damage an ancient monument but the greatest harm is in the potential loss of a cultural asset for future generations to enjoy.
"We care for these special places on behalf of the people of Scotland and local communities are often rightly protective of their local site.
"We know that early engagement with young people can make a significant difference in preventing such damage, and communities themselves have an important role to play in being vigilant and reporting incidents promptly.
The SNP claims a "Hard Brexit" will cost 80,000 jobs in Scotland.
A bullet has been recovered from a tree where a man was shot near a primary school.
Scotland's jobless total rose by 11,000 in the three months to November.
Most Viewed Pictures On Heart
Recently Played Tracks
To listen live, choose your preferred location:
Deposit £10 to get a £40 Welcome Bonus - That's £50 to play bingo, slots and more!*
Over 50 tracks to make you feel-good. New album out now...
Find your local four day weather report here.
Make Heart the soundtrack to your day and you could be a winner with great prizes up for grabs throughout the day.
Find out more about some of the companies advertising on Heart Scotland- East.