How do you depreciate these items?

I have a 50+ year old IP purchased this financial year and have done the following things after purchase but before renting it out:

- removed the old carpet and sanded the floors
- replaced light fittings and switches
- painted the interior
- replaced a broken gutter and a couple of downpipes

How do I go about depreciating these? Does the tax office have specific rules about the standard useful life of these items?
Sadly, garbage, that stuff is all 'building' i.e. 2.5%.

If possible, it's always to rent a place out for a while before doing much to it.