It's the responsibility of the builder or scaffolding company to get a licence for any scaffolding they put up on the highway (this includes the pavement). You don't need a licence for scaffolding on private land.
The scaffolding company are required to meet the terms and conditions set down in the licence by Dorset Highways. It's your responsibility to check they have the licence and that it doesn't run out before the building work is finished.
Apply for a scaffold licence
You can apply for a scaffold licence if you are a contractor. You must apply at least 2 weeks before the scaffolding is due to be put up. New licences cost £68.50 and renewals cost £34.
The licence is valid for 28 days.
The contractor will be charged £68.50 if equipment is not removed before the licence expires.
If your scaffolding will affect parking restrictions or if temporary traffic lights are required to allow safe passage for vehicles past the obstruction, you will need to apply for separate licences for these.