Planning and Infrastructure Bill

Debate between Lord Lucas and Baroness Thornhill

Committee stage
Tuesday 9th September 2025 Lords Chamber

[Baroness Thornhill (LD)]

My Lords, I will speak to my Amendment 134 with a butchered, watered down and much shorter version of my speech than the one I was going to give, so forgive me if it is not quite up to my usual standards.

This amendment seeks to reverse the decision of previous Governments to give permitted development rights to allow the conversion of non-residential properties into dwelling houses—in other words, to get back to where we were, when they would have had to apply for planning permission. The incremental changes were brought about over 10 years ago. Now, there is loads of evidence, including the Government’s own, that this is failing, and on three main grounds. Given that, in future, with more working from home, there are likely to be—and there already are—a lot more empty office blocks, we feel that this needs to be looked at fully and seriously before our town centres and business centres are hollowed out.

First, on quality, there is no doubt that many of these conversions are substandard. Indeed, in my own borough, Watford, there is a case study of a small factory that had been made into several flats with no windows. This happened with PDRs. The case was brought to government—with a body of other things, obviously—and made the previous Government include that such dwellings should have windows.

Secondly, and close to our hearts—I am looking at the noble Lord, Lord Best, here—we have lost loads of affordable housing. Had planning permission been collected, we would certainly have had more. Indeed, the LGA reckons that we have had a loss of 28,000 affordable homes. Think how many could have been housed off the temporary accommodation list had we had those homes.

Thirdly, it rides roughshod through local plans and policies, and the design, sustainability and accessibility that have been worked up with local councils and communities to build the places that they want to see.

Amendment 134 is not anti-housing; it is pro quality housing. The amendment was drawn up by the LGA, and many councils and development partners have contributed. Some 39 organisations and many individuals have signed an open letter to the Government—I heard only today that Mayor Burnham has added his name to the letter—to ask them to seriously consider rescinding PDRs. This shows the strength of opposition. In opposition, several government Members, including the Minister, had strong feelings and concerns about PDRs. My question is very simple: what has happened? I will listen carefully to the Minister’s response. I beg to move.

[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.

--- Later in debate ---

[Lord Lucas (Con)]

I am grateful for the answers that the Minister has given, and I will think hard on what she said. I certainly understand what she said about the way of dealing with these things not being through the Bill. However, I urge the Government to remember that lots of small improvements—as the Minister has pointed out in terms of the last 10 years of permitted development rights—make a difference. They nourish the small end of the builders’ market and give some balance to the domination of housebuilding by the big housebuilders. It is really important that that end of the market works well.

[Baroness Thornhill (LD)]

My Lords, I will make a quick comment. Article 4 directions are actually a very challenging process; the Secretary of State really gives you a hard time about it and you usually have to justify covering a larger area. The problem with PDRs is they are all over the place and that makes an Article 4 direction a little bit more difficult.

I would like to challenge a fundamental misconception. The Minister talked about the 113,000 homes that have already been created. The misconception is that they would not have happened anyway. I am sure some of them would not, but the majority, if they had gone through the planning process, would have had things suggested, altered and improved to pull up the standard. But, of course, it would not have happened quite as quickly.

I am going to end on a slightly tangential anecdote that shows that we really need to look at this. The people in the house next door to me have informed me that they will be erecting a 12 metre by 20 metre single-storey building in their garden directly adjacent to mine. They do not need planning permission. It is half the size of the garden and they are allowed to do that. If I want to erect a fence to cover the hideous wall of brick that I am going to be looking on instead of a beautiful garden with mature trees, I will have to apply for planning permission. Therefore, I think it is time to review the whole set-up, but particularly office to residential. I wish to withdraw my amendment.