How to find Gaddesden Place.Get to the ‘magic’ roundabout in the centre of Hemel Hempstead. You can’t miss it. This is easy to find from either the M1 or A41. It's actually six roundabouts arranged in a circle, with the result that you can drive either clockwise or anti-clockwise round it, and is a lot less scary than it looks. The old Kodak tower (now flats) is next to the roundabout - this is easy to find as it’s about the only high rise building in Hemel Hempstead.Take the exit for the Leighton Buzzard road (A4146) Follow the road for about two miles, out of Hemel Hempstead, passing a garden centre and a car showroom, all on your left. Immediately after the car showroom is the Red Lion pub also on the left. Opposite is a turning called Red Lion Lane which is signposted to Markyate.Turn right into Red Lion Lane, up the hill, and Gaddesden Place Lodge is the first building you see on the left. Drive up to a wooden gate next to the lodge and it will open automatically.Up the drive you come to the back of the house. Ignore the signs to the reception or deliveries, just park and use the main house door. There is a door bell, but if you get no answer phone the house phone.By train, head for Hemel Hempstead station, which is about 30 mins from Euston. Take a taxi to Gaddesden Place, which will cost around £12.