The Department of Infrastructure's revealed it makes a million pounds a year by renting office space to other government departments.
A freedom of information request to the DOI asked how many offices are rented by government and for how much.
In response, the department said it currently leases 12 buildings out at an annual cost of almost £1.1 million.
But it adds a rationalisation strategy is reducing government's rentals, which could save money in future.
Repairs on Peel Power Station to get underway
Manx Care doctor survey to be discussed by Tynwald
Weather warning for snow tonight
MHK queries safety at primary school in Ballabeg
Gales put two ferry sailings at risk tonight
Should the Island throw a birthday party for Barry Gibb?
Warning issued over icy roads
High ground could see 4 inches of snow on Saturday night