Housebuilders: Information Sharing

Baroness Thornhill Excerpts

Tuesday 15th July 2025 Lords Chamber

Asked by

[Baroness Thornhill]

To ask His Majesty’s Government what assessment they have made of the implications for housing policy of the Competition and Markets Authority’s investigation of seven major housebuilders regarding information sharing.

[The Parliamentary Under-Secretary of State, Ministry of Housing, Communities and Local Government (Baroness Taylor of Stevenage) (Lab)]

My Lords, the housing market can thrive only if there is fair, open competition, and it is right that the CMA acts where this is not the case. The CMA housebuilding study was right to highlight the areas for improvement in the market, and that is why we have responded to its findings about delivering a system that works in the public interest. The £100 million additional funding proposed for affordable housing will mean more families can benefit from a safe and secure home.

To answer the noble Baroness’s point about information, the seven companies highlighted in the CMA report have agreed to work with the Home Builders Federation and Homes for Scotland to develop industry-wide guidance on information sharing and not to share certain types of information with other housebuilders, including the prices houses are sold for, except in very limited circumstances.

[Baroness Thornhill (LD)]

My Lords, I thank the noble Baroness for her Answer. There could be an alternative version to this: major housebuilders pay £100 million to halt the CMA’s investigation into potential illegal collusion through the sharing of competitively sensitive information that could have inflated house prices. While this settlement might appear a pragmatic, cost-effective solution, would it not be more useful to have some evidence-led answers about whether the business models of the major developers are a significant factor in the slow delivery of housing? Therefore, should not the Government insist that the CMA actually completes its investigation, rather than allowing a financial settlement that obscures the fact and definitely looks dodgy?

[Baroness Taylor of Stevenage (Lab)]

The CMA is continuing its work on this, and on 9 July it announced that it is consulting on its intention to accept commitments offered by the housebuilders in relation to the investigation. That consultation closes on 25 July, and I have already set out some of the commitments that the seven companies have made. The £100 million payment, the largest secured through commitments from companies under investigation, will be split between affordable housing programmes across all our four nations. I hope that will make a significant contribution to delivering the affordable housing we all want to see.