Estate agent to the super-rich, Gary Hersham, operates in some of the world's most expensive postcodes. His latest instruction, a multimillion pound townhouse, complete with eight bathrooms, private gym and cinema, is up for grabs in Mayfair W1 - the heart of prime central London. It's a very different world for Lynne Blaney in Spennymoor, County Durham, where houses start at auction for just a pound. Exeter, Devon, one of the UK's most desirable places to live, sees rookie estate agent Lewis Rossiter juggling two deadlines, a pregnant wife and a demanding client who wants her house sold fast. And in Birmingham, veteran agent Dave Simms' dog-eat-dog world, two couples desperate to downsize compete for the same prized bungalow in Birmingham.