I'd highly recommend Jon's house. It's spacious and in an absolutely brilliant location less than 5 minutes from Turnpike Lane on the Picadilly Line or less than 10 minutes from Hornsey train station (takes you to Moorgate). It's also a 20-30 minute or so walk to Alexander Palace along a canal. The house is peaceful and really well equipped and the parking is a big bonus. Our 8 year old loved having the Lego there too. Thanks a million Jon, we had a brilliant stay.