Plans from a top sports lawyer and celebrity Botox specialist to build simultaneous basement granny flats in South End Green have been unanimously approved by Camden Council, despite fierce opposition from neighbours.

Barrister Adam Lewis QC, whose clients list includes Wayne Rooney and football clubs Arsenal and Chelsea, and his next door neighbour Dr Andrew Markey, a world-renowned consultant dermatologist, both applied to Camden Council to build basements under their homes in South Hill Park.

Mr Lewis, who bought his home for £1.5million in 2003, and his family live side-by-side with Dr Markey and his family in a three-storey, semi-detached Victorian building.

Both men insist they need a basement extension to provide accommodation for elderly parents unable to climb steep stairs.

The plans have divided opinion among neighbours living in and around South Hill Park, which has seen 15 basement excavations approved by the council since 2005.

The council received 16 letters of objection and 16 letters of support.

But last night councillors sitting on Camden Council’s development control committee unanimously approved both applications.

Among the objectors is broadcaster Piers Plowright, who lives in adjacent Parliament Hill.

He told the Ham&High: “Here we are in a strange and hilly part of London and we are digging and digging.

“It seems the houses next door to these houses start to crack and I just wonder how much more this part of London can take.”

Conservation group the Heath and Hampstead Society also raised concerns about the “potentially serious consequences of these excavations”.

Four residents living in flats next to Dr Markey, who specialises in private Botox treatments for a host of celebrity names, have also objected.

King’s College lecturer Dr Michael Ledger-Lomas said the works would jeopardise the “stability” of his building.