Birkhill has 10 double bedrooms and bathrooms, each decorated in keeping with the comfortable grandeur of the castle. Two of the double rooms have 4-poster beds and large "dressing rooms" with additional single beds. All have bathrooms. In addition there are two single rooms. The castle is able to accommodate a maximum of 20 adults and 4 children people. Guests are free to relax in the drawing room and library which has an extensive collection of books.

Dining at Birkhill, whether a formal 5 course dinner or an informal lunch, is always relaxed. The dining room can seat up 20 people round the main dining table or, for larger groups, can have up to four tables of 8/10. All of the food is prepared using the best local organic ingredients. These include vegetables grown in the gardens, game from the estate and salmon from the River Tay. An example menu would be: Three layered Souflée, Roast Lamb and Plum Tart. Breakfast is served in the breakfast room next to the kitchen and typically consists of scrambled eggs, grilled tomatoes etc., yoghurt, fruit, toast, tea and coffee.

The castle doesn't believe in dictating to clients what they should eat and will do its best at all times to meet clients' requirements. The castle can provide wines and a bar to guests' requirements and does not charge corkage.

There is a wide range of indoor and outdoor facilities at Birkhill. In the shelter of the walled garden there is a heated 40 foot swimming pool, with changing rooms, which is open throughout the summer months. Beside the castle are a tennis court, giant trampoline and play equipment. There is a lawn for croquet and a huge barbeque on the private beach on the banks of the Tay river. Snooker and billiards can be enjoyed in the billiard room which also has an ever popular mini football game.