RADIO DJ Chris Evans’ has received another warning from housing experts after flood prevention specialists told developers plans to convert the star’s run-down Sunninghill mansion into fourteen luxury apartments could be thrown out if concerns about flooding are not addressed.

After assessing the site, experts told applicants they required more information about how will water be transferred from the proposed pond and more details about how lower ground floor homes will be protected from excessive water, with other worries also listed in their report.

A note from the experts to the developers read: “Unless the applicant is to be given the opportunity to provide further information addressing the above comments it is recommended that the application be refused.”

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This comes after the applicant hit a stumbling block when Royal Borough of Windsor and Maidenhead (RBWM) ecology experts discovered roosting bats and other wildlife at the site.

Officers suggested the plans would harm the mammals, and advised proposals could only go ahead if actions were taken to ensure bats were not disturbed.

However, in June, Natural England told the RBWM it had no objections to the proposals.

The proposal involves knocking down the derelict eight-bedroom house which currently occupies the site on Church Lane in Sunninghill.

Eight of the 14 apartments would be three-bedroom homes and the other six would be two-bedroom dwellings, all of which are expected to fetch millions of pounds on the market.

The current site, which spans more than 3.7 hectares, has a tennis court and a swimming pool to the north which would be retained as a result of the plans.

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Developers have submitted amendments to the layout of site to planning bosses at RBWM in the last week.

Builders now plan to raise the rear lawn area around the apartment building so views of the site from the west will make it appear as a two-storey building.

It is suggested this change will make the lower ground floor accommodation ‘much more enclosed’, creating a ‘basement area’ type living space.

Other changes include removing the area for visitor car parking spaces.

However, developers still want to provide three car parking spaces for visitors to the site, and these plans do not change the number of spaces (25) available for residents.

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Electric car charging points are also planned for the redeveloped site.

The planning application is currently pending consideration.