Lymington High Street and the streets down to the quay are a conservation area with Georgian frontages and some listed buildings, where panels go on rear slopes and all-black modules are the sensible choice. Pennington, Woodside and the estates towards Milford on Sea are post-war and modern family houses with simple roofs that take a standard system.
The Solent side of the town gets the same salt air as Poole Harbour, so fixings and connectors are specified for it. Lymington is inside the New Forest National Park boundary in places; the survey confirms which rules apply to your address before anything is quoted.