Openreach has said more than 240,000 new premises across nearly 10,000 housing developments will get access to 1Gbps fibre broadband.
The properties, which will be located throughout the UK, will be able to benefit from a free deployment of ultrafast Fibre-to-the-Premises (FTTP) technology.
This work is being carried out as part of an agreement between Openreach with the government and the Home Builders Federation to ensure all sizeable new housing developments are connected to ultrafast fibre broadband.
Among the locations where homes are being connected to an FTTP network is the Barking Riverside site in London.
More than 10,500 properties will be created on this site, including approximately 460 houses.
Openreach has described this as one of the most "ambitious and important" developments currently taking place in the country.
Kim Mears, Managing Director of Infrastructure at the group, said: "This major investment in ultrafast broadband reflects our commitment to ensuring the UK has a first-class network, capable of delivering the latest communication services for households, businesses and other organisations across the UK."
Ms Mears stated that people are passionate about the speed and reliability of the broadband service they get from their communication provider.
Furthermore, she pointed out that the availability of ultrafast speeds can be a strong influence on the decisions made by prospective buyers.
As a result, Ms Mears believes the FTTP deployments will be a major boost to the people living in the new homes and working in the area.
Indeed, she said these people will have "quick access to some of the fastest speeds available".
This latest development comes shortly after BT agreed to Ofcom's demand for Openreach to become a distinct and legally separate company.
The regulator had sought changes to Openreach's governance as it was concerned BT still had control over its decisions, while other telecoms firms were not adequately consulted on investment plans that would affect them.
Openreach will therefore be separated from BT and operate with its own staff, management, strategy and a legal purpose to serve all of its customers equally.