One answer for your house in England: allowed or not, where on the roof, rough cost and payback, and one next step.
What you need
An address in England.
Optional: your yearly electricity use in kWh, from a bill or your energy app. We ask for it below. Without it we use a typical home (2,500 kWh a year, Ofgem).
This page replays recorded checks of six houses.
To check any address in England, clone the repository and run it. No keys needed.
How it works
Pick an example house.
Watch every check the agent makes, under the map.
Read the answer: allowed or not, cost and payback, and the next step.
Search your address.
Tap your roof on the map.
Get your answer, and see every check the agent made under the map.
Rules for England, demo data for London. Not legal or financial advice.