Which council decides planning for Royston solar?

North Hertfordshire Council covers the town, but the question is worth asking rather than assuming. The Hertfordshire and Cambridgeshire boundary ran through the centre of Royston until 1896, and the SG8 postcode district still reaches across the modern county line, so some addresses with a Royston postal address fall to a Cambridgeshire authority. The national permitted development rules are identical either side. What differs is which conservation areas and Article 4 directions apply, because those belong to the council your property sits in. Give us your full postcode and we will confirm the authority before any design work starts.