If your property has a gas heating system or any gas appliances you must ensure that these are checked annually by an engineer who is listed on the Gas Safe Register. Annual checks are recorded on a log called a Gas Safety Record. You must keep these records up to date and keep them for at least 2 years.
Before letting your property for the first time, you should have all the wiring and electrics in the property checked by a qualified electrician. Check your insurance policy to see if it insists on regular electrical checks. Failure to carry out electrical checks could nullify your policy in the event of a fire. If you are providing furnished accommodation you must ensure that all furniture provided complies with the minimum safety standards.