A London professional has found himself locked in a legal battle with the property company that manages his neighbour’s home, following claims that a poorly maintained lime tree is causing structural damage to his property.

Mr Brendon Patterson, 59, has taken Grainger Plc to Court over the offending tree, which he claims is consistently blocking drains, causing subsidence and smearing layers of sap over his windows.

The disgruntled neighbour told Central London County Court that he had spent approximately £20,000 over the course of three years clearing the drains around his home in Highgate, North London.

He said that “the lack of maintenance of the lime tree” had “caused subsidence,” and that his home was “constantly covered in sap”.

He added: “As you will be aware this has caused extensive damage to [the property]. Despite frequent requests the tree has not been removed or maintained properly”

In response to his comments, a spokesperson from Grainger Plc said: “We strongly refute the unfounded allegations put forward by Mr Patterson.

“The issue of the possible damage caused by the tree has been referred to our insurers and their solicitors”.

The case continues, with Mr Patterson seeking more than £800,000 in damages and costs from Grainger Plc.