Three properties sold at action take between a month and six and a half years to complete. But is it the semi in Sittingbourne in Kent, the cottage in Landrake in Cornwall or the flat in London's Maida Vale which will deliver its new owner the biggest profits? Martin Roberts, Dion Dublin and Martel Maxwell follow the refurbishment plans.

All today's property developments in Plymouth, Treherbert in Wales and Hinckley in Leicestershire take much longer than planned, with projects running a little over a year to eight years to complete. But will any of the developments make their new owners money - Martin Roberts, Dion Dublin and Martel Maxwell follow progress on their ambitious plans.