Any company you use should now be able to provide building regulations advice and sign off.
Planning permission solid roof conservatory.
Planning regulations were changed to allow conservatories to have a tiled solid roof back in 2010.
A solid roof on a conservatory also makes it easier to regulate the temperature in the room helping to keep it cooler in the summer with less sunlight beating down on overhead glass all day.
When replacing a translucent conservatory roof for a solid roof you must obtain building regulatory approval.
A conservatory does not normally need planning permission as it is considered a permitted development.
New temporary changes also mean that you can build a larger rear extension up to 6m for attached and 8m for detached properties so long as you notify surrounding properties using the neighbour consultation scheme.
There are a number of conditions that need to be met for the conservatory to be exempt from planning permission but none that affect replacing your roof.
So the short answer to the question of whether or not you need planning permission to install a tiled roof on your conservatory is yes.
Changes in building regulations means that those wanting to add a solid roof conservatory to their home may no longer need to apply for planning permission.
At the risk of oversimplifying the answer to do you need planning permission for a conservatory roof is no.
A change of use occurs when replacing a glass roof for a solid insulated roof as it causes the structure to be classed as permanent rather than temporary.