Work expected to be carried out over the next 10 years
Plans to develop Ronaldsway Airport are expected to cost around £120 million.
The infrastructure minister has revealed the figure in a written Tynwald answer.
Tim Crookall was asked about the cost of remedial and strategic actions that were identified in the Isle of Man Airport Masterplan.
These included air traffic control, parking, terminal redevelopment and security upgrades as well as a ten year asset plan.
Mr Crookall says, while the draft masterplan should be presented to Tynwald before the end of the year, the cost of the plans is expected to be 'circa £120 million over the next 10 years'.
He says work is ongoing to validate these costs, and that so far, only the airfield drainage project has been progressed to the design phase.
A fund application is currently being progressed for the total construction cost.