INTERIOR design icon Laurence Llewelyn-Bowen wants to make some changes to his 16th century country home near Cirencester.

The BBC Changing Rooms star has plans for a single storey extension at the grade-II listed Roberts House in South Cerney Road, Siddington.

The proposals, which have been submitted to Cotswold District Council, include reinstating the former staircase, replacing a courtyard window with a door and opening up a new doorway from an existing stud wall.

The property has undergone various alterations and additions over time and consultants working on the scheme say the current proposal seeks to enhance its functionality and improve its aesthetic appeal.

They hope to achieve this by demolishing an existing 8m2 flat roof utility room and replacing it with a slightly larger 15m2 utility room that is more in keeping with the architecture of the home.

“The proposed development has been carefully designed to ensure that it meets current building standards while also providing a modern and functional addition to the property,” the design and access statement reads.”

The plans include a green roof proposed for the utility room designed to provide extra insulation to the building and reduce its carbon footprint. It would feature a mix of sedum plants and wildflowers, which will provide a habitat for wildlife while also contributing to the property’s energy efficiency.

A glass lantern is proposed for the utility room to provide natural light to the space that is located within a windowless shaded courtyard. And the glass would be tinted to minimise glare and reduce solar gain, ensuring that the utility space remains comfortable and functional throughout the year.

The planned flak grey windows and doors would match the rest of the house, providing a seamless integration with the existing architecture. And the proposal includes relocating the original staircase to create two independent living areas within the main building.

“This will improve the functionality of the property by providing separate access to the different parts of the building, while also preserving the historical significance of the original staircase,” the planning documents read.

“The proposal includes reinstating existing doorways to provide additional access points for the separate living areas. This will improve the functionality of the property while also preserving its original character.”

People have until June 12 to comment on the proposals which the council is expected to consider by June 22.