Most of inner London is Victorian and Edwardian terraces, with valley roofs at the back and a front slope facing the street. The rear slopes and back additions often take the panels. Outer boroughs such as Bromley, Harrow and Havering have far more 1930s semis with simple hipped roofs. Each borough runs its own conservation areas, and some use Article 4 directions that remove permitted development rights. Listed buildings need listed building consent. On an ordinary house outside those areas, roof panels are usually permitted development. We check the borough’s rules before anything is designed.
A large share of London lives in flats. Solar on a shared roof needs the freeholder’s consent, and blocks do not always have the same planning rights as houses. Flat owners and renters with their own parking space can claim up to £500 per socket towards an EV charger until 31 March 2027. Some councils allow on-street charging too. UK Power Networks runs the London network. London is inside the area we cover, so the first survey is a video call and site visits are grouped.