If anything, cut the depreciation of 'fixtures and fittings' (up to 20%), and also 'building' (2.5%), which really beef up the 'negative' position.
One other area is expenses for trips, with the express purpose of viewing the property, and the claiming of such.
I can't see them not allowing a property investor, to claim costs associated with a property investment, when they'll want that property investor to pay the relevant tax, on the income.