Yes. All renovations are claimable and DEPMAX are able to include actual costs or estimated costs by previous owners for inclusion in your depreciation schedules if they have occurred after a certain date - Let us know when they were completed and we can let you know if they are eligible.
The depreciation schedules are valid for the effective life of the capital works (Division 43 - "bricks and mortar") of the investment property or determined effective life of the plant and equipment (Division 40 - "fittings and fixtures") within the investment property. DEPMAX depreciation schedules cover the full 40 year effective life of the investment property and will not need to be prepared each financial year unless say some major renovations have been conducted after initial depreciation schedules have been prepared.
No. But if your property is a stand-alone freehold property, DEPMAX have suitably qualified Quantity Surveyors who, for an additional fee can help calculate what the insurance replacement estimate will be of your investment property. See the application form for further details.