When you buy a building for any purpose, it is essential to really know what you have put your hard earned readies into. Usually a developer will look out for property that can be knocked down and rebuilt, the land not being available easily these days, the only way to get something is to keep eyes and ears open and buy up old bungalows or similar. But before signing contracts, it is essential to look into the background and check anything that might come and bite you later. Is there asbestos in the building or in the old detached garage / shed combo for example. Are those standard bricks used for the extension . . . . All these things need careful verification and legal searches, although an irritating expenses, will prove worth every penny. Getting expert help with these issues is critical as planning applications will be dead in the water otherwise.