selling a leaseback- questions

Hi all, I have a leaseback property which I bought five years ago, and to date have received all rental income payments. My question is , if I put it on the market for sale , what tax / % am I liable to pay? i.e. capital gains..I reclaimed the v.a.t. also, do I pay back 3/4 of the v.a.t. amount given I am 5 years through the 20 year term.Any other taxes I would be liable for?

Basically if the property I bought was 200,00. I recouped 40,000 odd through vat refund. If the value has,nt changed , what would I expect to clear after taxes/vat once sold??

Thanks in advance..tk