If you wish to build a small detached structure in your yard, such as a garden shed or summerhouse, building laws usually do not apply if the floor space of the building is less than 15 square metres and there is no sleeping accommodation. However, you should still get permission from your local authority to ensure that any alterations to your property are approved by them. They may have requirements for fire safety or waste disposal facilities if they think it will be used as temporary accommodation. Building regulations cover the construction of large buildings such as houses and apartments. They include guidelines on health and safety, energy efficiency, materials used, and water management. Large buildings must be designed and constructed by professionals so they are safe and efficient. Building regulations also require regular inspections to make sure there are no problems with doors, windows, heating systems, or other parts of the house. If something goes wrong with your house after it has been built, the builder is required by law to fix any defects. Large buildings need to be inspected before they are sold or rented out for profit. The seller or landlord must tell anyone who asks about any problems with the property. This includes any damage caused by old age or major repairs that were not done properly. It's their responsibility to make sure the premises are safe for people to live in. If they fail to do this, they could be fined or have their license to rent out properties revoked.