Harry Styles hopes to restore a mansion on the edge of Hampstead Heath to its former glory - with modern twists fit for a pop superstar.

In a project reported by the Daily Mail to cost £30 million, the singer aims to make the Grade II-listed mansion - which had been separated into two homes - whole again.

This includes building a new second floor after the original was taken down in the 1950s, including a huge master bedroom, four dressing areas and an indoor patio.

For almost 220 years, the current semi-detached houses were a single dwelling called ‘The Firs’.

The house was divided up in the 1950s, listed in 1974 and subject to "inappropriate" poorly built extensions in the 1970s which "compromised the architectural interest of the building and its setting", according to planning submissions.

In the plans, the mansion's sweeping staircases will be reinstated and retained or even extended - and the house's white stucco exterior will be refurbished.

The new second floor will boast a vast master bedroom, with a bathroom, an indoor patio and a lounge, as well as four separate dressing areas.

The first floor will be given over to guests, with a master guest bedroom and three other bedrooms, each with their own bathroom, as well as a guest living room.

The ground floor will host a dining room, drawing room and TV room, with a gallery and study, as well as a kitchen, and a conservatory.

And the lower ground floor will feature a gym with a steam room and plunge pool, as well as a lounge and bedroom.

The 1970s garage and a section of boundary wall will be demolished, with a new garage and a basement below it housing a cinema and playroom.

Both ground source heat pumps and solar panels are included in the design, together with rainwater harvesting.

The former One Direction singer bought the property in April 2019 for £8,800,000, its value is said to have increased by £2,845,000.

He went on to snap up the smaller adjoining house, which is also Grade II-listed for £4.175 million seven months later.

The new designs were submitted to Barnet Council last month. Demolition and building is expected to start in October, and take a year.