Let us take the pressure off of you, make use of dead space, sort out that loft space, ensure you have sufficient insulation, strengthen up, board out, install a Velux, subject to planning and building regs you could increase your home space; Garage Conversions are another option, again subject to planning and building regs;
We rarely use our garage's for their purpose they are built, usually they become storage area's, however why not turn them into a new living space, maybe move the kitchen, add a dining room, a play room or new lounge. Planning permission can be sought, once passed a typical conversion can be achieved in a couple of weeks.
