We are doing a full length back extension on our bungalow this year. The kitchen and lounge are next to each other and the house is semi detached with high fences in the back garden. Our lounge will end up being 28ft by 12ft but only the garden end will have natural light. The extension part will make up half the length and will have big doors at the end and a large skylight in the ceiling (flat roof). I am just concerned the other end will be dark and dingy. Or am I over thinking it?