Much of inner London is Victorian terraces, often with a valley or butterfly roof hidden behind a parapet. Those roofs can take panels, but access and scaffolding need careful planning. Edwardian streets in places like Muswell Hill and Walthamstow have larger front and rear slopes. The outer boroughs, such as Bexley, Harrow, Sutton and Havering, have many 1930s semis with hipped roofs, drives and space for a charger. Flats are common across the city: a shared roof needs the freeholder’s agreement, and a battery alone on an off-peak tariff can suit a flat better.
Planning goes through your borough council. London has many conservation areas and Article 4 directions, and listed buildings need consent, so the address matters. Roof panels are permitted development on most other houses. The network operator is UK Power Networks. Parking and access are planned before install day, especially on narrow terraced streets. London is more than 90 minutes from Ferndown, so the first survey is usually a video call, then a site visit. Installs are scheduled in groups.