Hello Allen, We have a 12 * 8 building envelope and a front distance of 5.5 m, at the back 3 m. The neighbor has exceeded the rough construction by 50 cm and now has 5 m. At the back, he has 3.3 m distance to the property boundary. 2.5 roof pitch 28 degrees is allowed. We are now starting and want to lay the floor slab for the basement. Now we are wondering whether we can continue or have to wait. Thanks again,