Not all Grand Designs projects go to plan so what happened to some of the most iconic buildings of the last 20 years? From the London water tower to the build that tore an entire family apart, The Mirror takes a look...

For more than two decades Kevin McCloud has been trying his utmost to make peoples’ dreams come true by helping them build their ideal home on Grand Designs. But unfortunately it’s not always plain sailing. Building a home from scratch, or renovating a rundown building can lead to all sorts of issues including problems securing planning permission and projects costing thousands - sometimes even millions - more than initially expected.