The map_edit on code can be used to lock/unlock any tile on the whole lot. Enter the code, click on the "light" tiles that are not yours, and you will "buy" it for free. You can also click and hold and point over all the light tiles. After all of the desired tiles are yours type map_edit off to exit that mode. The whole lot, including the road, is now yours. Using this trick will allow you to place objects anywhere. You can repaint the side walk or road in any desired color, and decorate anything the way you want.