Demolition work could begin in November to flatten two Aberdeen schools.
Torry and Kincorth academies will close their doors for the final time at the end of the school term in July, with pupils moving to the new Lochside Academy in Nigg in August.
The site in Torry has been identified as the preferred one for a new primary school and community hub while the Kincorth Academy site has been earmarked for council housing.
Members of the capital programme committee will consider the report on Wednesday.
A report by Alastair Reed, team leader of asset management, urged councillors to approve the business case for the demolition of both schools in order to allow these projects to be carried forward.
He added: “Should the report recommendations be approved the initial programme indicates that the demolition work could commence in November 2018 at the earliest. This would mean the buildings being vacant for around three months.
“Security arrangements will have to be put in place during that period which satisfy the requirement of the council’s insurance provider.”
It is expected both school buildings will be completely empty by the end of July.
The lodge adjacent to Torry Academy has been vacant since July 2015 and would also need to be demolished.
Mr Reed continued: “Although these schools will no longer be operational there are still costs of holding these properties.
“The single biggest cost is business rates which is still payable even though the buildings are vacant.
“There will also be costs for keeping the premises safe and secure, along with some continued grounds maintenance requirements.”
The council would need to pay £36,000 if the building remains vacant three months, rising to £144,000 if empty eight months.
As a minimum, security fencing would have to be installed. If boarding up the building is required there would be a further revenue cost.
If it is not required then on-site security would be necessary until the buildings are handed over to a contractor but the estimated costs are included in a confidential appendix.