Consultation on further expansion of PD rights

Coinciding with the Autumn budget, MHCLG published a detailed consultation paper which proposes various extensions to existing PD rights, plus some new ones, some of which may prove to be extremely controversial. It is for this reason that I am not getting too excited about these suggested changes at the moment.

Local planning authorities have never been happy with the significant widening in the scope of permitted development under the GPDO since 2013, particularly those provisions that permit various residential conversions. However, as the government points out, in 2016/17 alone, permitted development rights provided nearly 18,900 new homes, 8.5% of the total number of net additions delivered.

Perhaps the two most contentious proposals in the consultation paper are those that relate to the upward extension of existing buildings to create additional new homes, and the suggested creation of a PD right to allow the demolition of existing commercial buildings, so that their sites can be redeveloped for housing.

Upward extensions
What the government is proposing is a new PD right, subject to prior approval by the LPA, to allow additional storeys to be built above certain buildings, in particular those in commercial or residential (C3) use. A number of issues would need to be considered, including height limits. For example, this PD right could apply to the airspace above premises in a terrace of two or more joined properties where there is at least one higher building in the terrace. The roof of the premises extending upward would be no higher than the main roofline of the highest building in the existing terrace. This would have the advantage of providing a fixed local point against which any proposal could be considered and offer greater certainty on what is permitted. An alternative approach would be to permit upward extensions more widely to a height no higher than the prevailing roof height in the locality. While this may extend the proposed right to a greater number of properties, it would not be possible to define prevailing roofline in regulations; it would be a matter to be considered by the local authority as part of the prior approval. In doing so, the local authority would be able to define what it considered to be the prevailing roofline taking account of the local building types and heights and the extent of the area over which it should be determined. But his may offer less certainty to the applicant.

Local amenity impacts would have to be considered when reviewing a proposal to construct additional storeys. The government is therefore proposing that there should be a maximum limit of 5 storeys from ground level for a building once extended, with anything higher requiring a planning application. (This would be based on an additional storey not exceeding 3 metres in height.) There would also be potential issues where premises are not on level ground. The impact of adding additional storeys in these cases could be significantly greater on the amenity of neighbouring premises, for example from overlooking and overshadowing and on the character of the area.

The government would also like a permitted development right to apply to purpose built, free-standing blocks of flats (within Use Class C3) over 5 storeys in height would provide an opportunity to deliver additional new homes through upwards extensions, but it would have to be determined whether there should be a limit on the number of additional storeys that could be added.

The government proposes that upward extensions should be permitted on premises in a range of uses that are compatible with C3 residential use. These could include existing C3 residential premises, those high street uses that can already change use to housing under a permitted development right (shops (A1), financial and professional services (A2), restaurants and cafes (A3), betting shops, pay day loan shops and launderettes (which are sui generis), offices (B1 (a)), and buildings in mixed use within these uses. The government also wants to explore whether there may also be other buildings whose use is compatible with the introduction of new homes. Given that they are usually located in residential areas or high streets, would premises such as health centres and buildings used for community and leisure purposes be suitable for inclusion in the permitted development right? It is suggested that out-of-town retail parks with a mix of shopping and leisure uses may also be suitable for upward extensions to provide additional homes.

The permitted development right would need to allow for the physical works required to construct or install additional storeys on a building. These could include works to strengthen existing walls, engineering works to strengthen existing foundations to support the additional storeys and works to provide safe access and escape for any additional new homes within the building’s footprint. Separately it could also allow for works within the curtilage where it is necessary for access to the additional new homes. The government does not propose to define particular physical works to allow for the varied nature of what might be required. There would, however, be a prior approval in relation to the nature and impacts of the works. (There would still, as always, be a requirement to comply with other legislation, and with the Building Regulations and Fire Regulations, the Party Wall Act, etc.)

Prior Approval would be required for these upward extensions. These would include matters such as flooding and contamination risks, transport and highways and the impact of additional new homes on existing occupiers and businesses, especially those that create noise and odours which may be a statutory nuisance. Prior approval would apply the “agent of change” principle, set out in paragraph 182 of the NPPF, to ensure the introduction of housing could be integrated effectively with existing business and community uses, and to consider mitigation measures for the potential impacts on new residents and existing businesses. The prior approval would also assess the impacts of any works external to the building and within the curtilage, including fire escapes. Prior approval would also require consideration of the design, siting and appearance of the upward extension and its impact on the amenity and character of the area, taking account of the form of neighbouring properties. This may include considering whether the proposed development is of good design, adds to the overall quality of the area over its lifetime, is visually attractive as a result of good architecture, responds to the local character and history of the area and maintains a strong sense of place, as set out in paragraph 127 of the NPPF. But the government expects prior approval on design to be granted where the design is in keeping with the existing design of the building (a warning shot across the bows of planning authorities!).

Prior approval would also consider the impact of the development on the amenity of neighbouring premises, for example, from obscuring existing windows, reducing access to light or resulting in unacceptable impact on neighbours’ privacy from overlooking. It would also consider measures to mitigate these impacts, and enable the neighbours, including owners and occupiers of premises impacted, to comment on the proposal.

There would be an application fee calculated per extra dwelling created, to recognise the range and complexity of issues for local authority consideration.

An additional idea, which seems to have been almost afterthought, is that the proposed right to build upwards might possibly be drafted so as to allow householders to extend their own homes. However, the consultation simply throws the idea open for discussion and asks whether the PD right for upward extension of a dwelling should allow for the enlargement of an existing home and, if so, what considerations should apply.

Demolition of commercial buildings and replacement with housing
In the Autumn Budget of 2017 the government committed to consulting on introducing a permitted development right that would allow the demolition of commercial buildings and their replacement with residential development.

The government now suggests that a PD right focused on smaller sites may be more practical. For example, in formulating such a PD right it might be necessary to consider the size of the site; the height and density of new buildings; the existing use of the site, the relationship with local plan policies for key sites and areas where the right should apply.

This would be subject to prior approval (possibly requiring the wider range of matters mentioned above to be considered than under current PD rights, including any necessary mitigation measures). Higher application fees would probably be payable. There may well be a demand from LPAs that this extended PD right should include a requirement for the provision of, or contributions towards, affordable housing in such cases.

Change of use from storage or distribution (B8) to residential
Class P in Part 3 introduced a PD right for change of use from storage or distribution (within certain limits) to residential use in 2015 for a period of three years. The right was extended in April 2018 for a further 14 months. At present Class P allows applicants to secure prior approval on or before 10 June 2019, and gives those with prior approval three years from the prior approval date in which to complete the change of use. The government now proposes that this PD right should be made permanent and that the existing conditions, including the matters requiring prior approval, should remain unchanged.

The consultation document does not, however, mention any intention to extend or make permanent the current PD right under Class PA for the residential conversion of light industrial buildings. This PD right is currently due to expire on 30 September 2020. Maybe this will be something for consideration by the government next year (assuming they are still in office by that time).

Larger extensions to dwellinghouses
The permitted development right for larger extensions to dwellinghouses, introduced in 2013, was originally intended to be purely temporary, but in 2014 this PD right was extended for three years, to May 2019. In view of its continuing popularity, the government now proposes that the right should be made permanent. The existing conditions would remain unchanged, but where prior approval of larger extensions is required under these rules, the government proposes to introduce an application fee of £96.

Public call boxes and advertisements
This is a subject that has proved to be controversial, and so the government is now consulting on the possibility that the right to erect phone boxes as PD might be ended. There is also a closely connected issue regarding advertising displayed on these boxes, and so an amendment of the Control of Advertisement Regulations is also on the cards.

I don’t propose to discuss this topic further here, as it is highly technical and I suspect it is unlikely to be of interest to most of my readers.

Changes to the Use Classes Order?
Almost as an aside, the government suggests once again in this consultation paper that the UCO might be amended in relation to the various Class A uses. This might involve the amalgamation or adjustment of some of the existing town centre uses (A1, A2, A3, A4 and A5). It isn’t a new idea, and has been mentioned several times in the past. The lack of any definite suggestions in the consultation paper, and the fact that it gets no more than a passing mention, suggests that it is still not at the forefront of ministerial thinking. As long ago as 2015, the government also noted that they really ought to do something about consolidating the much-amended 1987 Use Classes Order but, what with one thing and another, they still haven’t got a Round Tuit.

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So the overall reaction to the consultation paper must be “Watch this space” - we shall have to wait and see what emerges next year following the end of the current consultation period on 14 January. Some of the less controversial proposals could come forward as early as next Spring, but my guess is that the really contentious ones, involving the upward extension of existing buildings and the demolition of commercial buildings to make way for residential development may take rather longer to come forward, and may be quietly dropped if they are greeted with loud booing from LPAs and conservationists. I can’t really see what advantage is to be gained from making such developments PD. The issues that would have to be considered in relation to a prior approval application for these developments would be substantially similar to those that would apply to a planning application, so why make the change? Widening permitted development rights to the extent that is now canvassed by the government makes rather a nonsense of the whole concept of “permitted development”.

© MARTIN H GOODALL