Broadband provider BT has confirmed plans to trial Fibre-to-the-Premises (FTTP) technology on brownfield sites for the first time.
Through its Openreach subsidiary, the company is to introduce the networks in two areas of Milton Keynes and London from the start of next year.
It is believed the services will provide speeds of 100Mb to around 20,000 homes and businesses, while high upstream connections of up to 10Mb will also be available.
Openreach's Managing Director David Campbell said the trial was "crucial" for plans to deploy FTTP with Fibre-to-the-Channel technology.
He added: "Our FTTP deployment in Ebbsfleet has allowed us to learn a great deal about rolling out fibre directly to homes in greenfield areas and we believe that the technology has huge potential for brownfield areas too."
News of the plans comes after Openreach confirmed proposals to pilot a new platform that can provide broadband access over longer distances.