If you lease an airport hanger at Westover Field your rent will be increasing upon your lease renewal after cost of living increases were approved by the Board of Supervisors yesterday. Leanne Macintyre of the Department of General Services explained to the board that a cost of living increase is provided for in all leases, however in some of the leases the increases are automatic at renewal and others it is left to the county’s discretion.  This will impact lessees as the lease anniversary dates come up in this fiscal year. The amount of the increases is 3.46 percent or about 1.56 per month on the average. The Board approved the increases unanimously.