Planning and Infrastructure Bill

Debate between Lord Lucas and Baroness Warwick of Undercliffe

Committee stage
Tuesday 9th September 2025 Lords Chamber

[Lord Lucas (Con)]

My Lords, I am delighted to find that I take exactly the opposite point of view to that of the noble Baroness, Lady Thornhill. I see permitted development rights—as in my Private Member’s Bill, and as in my amendments to this Bill—as having a large potential to contribute substantially to housing expansion. Like the noble Baroness, Lady Thornhill, I shall curtail my remarks in the hope that what the Minister says will be so enlightening that I shall not need to ask her further questions.

My amendments propose a targeted set of expansions to permitted development rights to boost uptake and delivery by methods such as: removing unjustifiably onerous restrictions, including those concerning the ability to convert commercial buildings in areas of outstanding natural beauty, or the inability to extend upwards on pre-1948 buildings of no defined heritage value, or buildings postdating an arbitrary date; clarifying the wording of prior approval conditions to remove vagueness, which leads to a lack of consistency in decision-making between LPAs and more uncertainty in their application to, for example, natural light, flood risk or transport impacts; and removing the subjectivity currently allowed for within external appearance conditions for upward extensions, which are regularly used to refuse or frustrate upward extension in classes A and AA to AD and which act as a strong disincentive for the use of these permitted development rights by SME developers and housebuilders.

Instead, the local design code-based conditions in my amendments would provide certainty and consistency to decision-making, permitting the combined use and application of class MA and classes A and AA to AD, to maximise the development potential for existing buildings to deliver new homes.

Design codes are hugely important in this. Mandatory local design codes, already supported by the NPPF, are essential to make permitted development rights work at scale. They would replace subjective judgments on external appearance with rule-based certainty, define acceptable height, density, daylight and amenity standards to reduce the risk for developers, and be capable of delivery via a public/private model with some costs recovered through planning fee reforms, which could target PDR applications.

Reforms would bring consistency, reduce risk and make PDR a viable route to delivery. Local design codes would improve outcomes and boost developer confidence and certainty in the uptake and use of PDR. PDR allows for greater numbers of conversions and extensions of existing buildings to provide new housing and sustainable urban environments. This would help to reduce the demand and strain of granting housing developments in less sustainable greenfield locations.

Together, the amendments that I suggest would unlock new housing capacity in the most sustainable and accessible locations and benefit smaller building firms, while still maintaining quality and control over the urban environment.

[Baroness Warwick of Undercliffe (Lab)]

My Lords, I will speak briefly in support of the noble Baroness, Lady Thornhill. With the Government’s ambition to increase the supply of social and affordable housing and the reforms to improve the capacity of the planning system, now seems the right time to reform PDR. The Government have rightly made the quality and safety of housing a priority, but conversions to PDR are not subject to the same standards compared to developments going through the full planning system.

The Royal Institution of Chartered Surveyors, in its report on the impact of extending permitted development rights on public authorities and communities, found that the quality of office-to-residential conversions was significantly worse than those which had been brought through the planning process. Other than the nationally described space standards and requirements around natural light, there are no minimum standards for these converted homes relating to safety, facilities, communal space, or connection to amenities.

It is essential that the housing that is developed is the right housing to meet local needs and make a positive impact on the lives of residents. It is necessary to make it a viable solution for addressing the housing crisis. At a minimum, conversions should meet the healthy homes principle brought forward by the Town and Country Planning Association’s Healthy Homes campaign. I hope that the Minister will be able to respond positively to these points.