SOCKET & LIGHT SWITCH MOUNTING HEIGHT -Part M building regulations new build, rewires & extensions - YouTube
How Far Should The Light Switch Be From The Door? - LED & Lighting Info
Where should you position electrical sockets and switches?
Hangar Electricals - Switches and Sockets Socket outlets must be mounted at a height above the floor or work surface so as to minimize the risk of mechanical damage (IEE Regulation 553.1.6).
Light Switch Height Requirements
How to Set Standard Outlet and Light Switch Heights
How to Determine the Height of Light Switches for Your Home?