“If you wish to occupy the highway in relation to building works and other purposes, you have to apply to the Authority for permission under the Highways Act 1980. Permission and licence is required for works including scaffolding, building materials, hoarding, site offices and excavations in the highway.”
In addition to the licence fee a deposit is required to be paid. Once works have been completed and assuming no defects were caused, you should request your deposit to be refunded via the process set by the authority.