The 24-week demolition of the former Ellon Academy is now under way, with part of the building already removed.
The demolition is being carried out by contractors David Smith.
Speaking to the Times, demolition manager David Morgan said: “We started work on site in August and so far it is going well.
“The process is well on its way and we have removed the soft strip of the building.
“We expect to clear out the lower level buildings first and will then start at the top and work our way down.”
The former Art and Technical department building was torn down in the last week, as were the old Drama, Music and Religious Education huts that were located to the rear of the building.
The contractors arrived on site at the end of July and worked quickly to prepare the building for demolition.
They started by clearing out left over equipment and then removed the windows and frames.
From then the inner classroom walls were removed, leaving the building a shell of its former self.
Mr Morgan added that the huts were the first to go as they were “well past their best”.
The demolition work is expected to be completed by November.
The former academy has not been used since the school moved to its new Community Campus at Kelly Pearl Way last year. The “new academy” building was originally built in 1979 as a result of increasing pupil numbers.