The prince and his wife Camilla, the Duchess of Cornwall, have applied for planning permission to open up Llwynywormwood, their Carmarthenshire farmhouse, to paying guests. The couples' idyllic three-bedroom home - which is surrounded by 192-acres of countryside - has already been dubbed 'C and C's B and B' after becoming a favourite retreat for Charles and Camilla.
Architect Craig Hamilton has designed the plans, which include a new bathroom extension and the conversion of an adjoining farm building into reception and dining room.
The plans, submitted to Carmarthenshire County Council, also feature designs for furniture made from oak and fir trees from the prince's forests.
Charles also hopes to fill the estate's lake from a near-by stream in order to generate hydro-electric power.
A spokeswoman for Clarence House said: 'The application outlines plans for minor refurbishment to be carried out on the existing farm house. 'Some conversion work is planned to the north range to create business meeting facilities and to enable the three-bedroom cottage to be let as part of the Duchy of Cornwall holiday cottage portfolio. 'Additionally the west range will be re-built, following the historical footprint of the structure, to provide further living accommodation.' The prince bought Llwynywormwood Estate through his Duchy of Cornwall estate in March this year for a reputed £1.2 million. Overlooking an 18th Century county park, the farmstead includes 40 acres of woodland, a walled garden and the remains of a lake.
It is hoped the farm will serve as a venue for the various charities associated with the prince, such as The Prince's Trust.
Charles and Camilla still intend to use the farmhouse as a base when they are visiting Wales.