moved into investment property

Hi everyone,
        hoping i can get some advice.we sold our ppor and moved into our investment property 7 months ago,unfortunately it being in the disaster zone that was coffs harbour 7 months ago the floods meant that we quickly had to spend around $40,000 fixing up the back garden to make sure that it was'nt a bog of mud.also unfortunately we did'nt get a valuation when we first moved in.we would like to think about selling the property and moving into a bigger ppor but not sure what are the implications with capital gains etc… any help would be much appreciated.thank you…