Over the last 40 years, there has been a series of redevelopment projects at Barberstown Castle, with careful attention given to retaining the original Castle features, character, style and personality of this unique property which now operates as a Fáilte Ireland approved 4 Star Hotel. Projects in which Malone O’Regan have been involved include:
- Hotel extension comprising thirty-seven bedrooms and function room partly converted from 13th, 16th and 19th-century buildings to the existing hotel. In keeping with the character of the original buildings large exposed timber structural beams were widely used. Natural stone walls were reused in the function room and adjoining areas.
- Extension and upgrade of Victorian Tea Rooms and Garden Bar.
- Restoration of the Castle Keep – the walls of the Castle Keep slope inwards so as to prevent an enemy from getting out of range by closing up to the building. Ironically however the rooms on the upper floors of the Castle are larger than those on the ground level as their walls are somewhat thinner.