The planned extension will create more space for community activities, events, education and enhance the overall visitor experience.

The application, which was submitted in February, sought to make improvements and updates to the existing facility located on Winehouse Yett.

However, due to the features of the site, developers will need to use different materials between the lower and upper parts of the building.

The lower storey will be finished with white render on blockwork, with stone cladding to the base and cill detail.

The upper part of the building will feature Eternit Cedral Lap cladding in a timber effect, coloured anthracite.

In a report of the handling of the case, a council official said: “The design of the proposed extension reflects a thoughtful and sensitive approach to blending with the existing structure, ensuring continuity in both form and materials.

“In terms of its impact on the setting of Dundonald Castle, it is considered that the proposed alterations and extension will not have an adverse effect.

“The separation distance between the extension and the Castle, along with the ancillary nature of the development, ensures that the historic setting of the Castle will be preserved.

“The development is designed to preserve and enhance the character of the Visitor Centre and the surrounding conservation area, ensuring that the setting of Dundonald Castle remains preserved.

“There are no policy objections to this proposal, and it is considered that it does not have an adverse impact on the surrounding historic environment or amenity of the locale.”

The plans were approved with conditions that three off-road parking spaces shall be provided within the existing site, and the developer shall carry out an archaeological watching brief.