Sir Paul McCartney and Heather Mills reached a stalemate in their divorce proceedings over her demands for two more houses.
The Beatles legend - who failed to hammer out a settlement with his estranged wife at London's Royal Court of Justice last week - is refusing to give Heather the pair's £2 million former family home in Hove, East Sussex, and his £6 million Los Angeles property.
A source said: "It has literally come down to bricks and mortar. She has asked for two of Sir Paul's estates. She wants two of the properties for herself, even though she already owns a place in Sussex. Paul has said no. They are back to square one."
As well as having a home in Sussex, the 39-year-old charity campaigner also has another home where she lives with the pair's three-year-old daughter Beatrice. Talks between Heather and Paul - who split in May 2006 following a four-year marriage - are also said to have broken down over the former model's refusal to accept the 65-year-old singer's £50 million offer in return for her silence. Heather was reportedly willing to sacrifice £14 million from her payout so she could talk about their relationship on US chat shows and write a revealing autobiography.
The final divorce settlement is likely to be one of the biggest in British history. Paul, who is worth a staggering £825 million, is said to be eager to reach an agreement as quickly as possible in private without resorting to taking the case to open court. | 
