We have sold our Timeshare and may have CGT liability due to its increase in value. However if we include Agent costs, Legal costs as well costs incurred to modernise and upkeep of the property to its 5 star status over 25 years, our liability to CGT is within the £3000 limit each. So for our Self Assessment, do we have to declare this to HMRC next year?. Can you please advise. Thanks