Property Location With a stay at The Knight Residence Apartments by Mansley, you'll be centrally located in Edinburgh, just a 5-minute walk from Grassmarket and 10 minutes by foot from Edinburgh Castle. This eco-certified aparthotel is 0.6 mi (0.9 km) from Princes Street and 0.4 mi (0.6 km) from Edinburgh International Conference Centre. Distances are displayed to the nearest 0.1 mile and kilometer.