For unlicensed aerodromes
CAP 793 para 7.2 says:
CAA permission is not required for the installation of aeronautical ground lighting at an unlicensed aerodrome. However, if the aeronautical ground lighting is considered to be a hazard which is liable to endanger an aircraft, the CAA has the right to request the lighting be extinguished or screened in accordance with Article 221 of the ANO 2009.
It also offers some advice on positioning of lights.