The question goes both ways: if a local planning authority is minded to refuse a planning application, when should the mayor of a strategic authority be allowed to call in the application and potentially approve it? Conversely, if a local planning authority is minded to approve a planning application, when should a mayor be allowed to direct refusal?
The principle of giving mayors of strategic authorities the power to intervene in local decision making is not new – originally proposed in the December 2024 English Devolution White Paper and given statutory effect by way of section 33 of the English Devolution and Community Empowerment Act 2026 – and the operation in practice of the Mayor of London Order 2008 is of course very familiar in practice to those of us who work on projects within London.
However, that is not to say that today’s MHCLG consultation paper Planning powers for mayors in England August 2026) doesn’t raise some significant issues.
Perhaps the biggest change from what was envisaged in the white paper is that mayors’ powers to intervene are no longer proposed to be dependent on their authorities first having a spatial development strategy in place. It is said in the consultation paper that before SDS adoption a mayor would only be able to:
– direct refusal of PSI applications where the development proposed would be detrimental to the area’s growth, and would be contrary to good strategic planning in the area
– call in PSI applications if the development proposed would have a significant impact on the growth of the area, and there are sound planning reasons for intervention.
I do worry about this change, for three reasons.
First, it reduces the incentive for the authority to have an SDS in place.
Secondly, a mayor who is intent on standing in the way of a particular development or type of development – or indeed intent on supporting a scheme which is otherwise heading for a local refusal – will not find it particularly difficult to frame his or her intervention in terms which fall within these criteria. They don’t in practice provide much of a safeguard at all.
Thirdly, how can participants predict with any confidence whether the mayor might intervene (for or against), and if so on what grounds, without an SDS in place? What inappropriate negotiating lever might this give whoever is in that mayoral position?
Generally, how robust is this emerging system against the risk that those in positions of power may not have the proper positive planning of their area as their priority as against other political objectives?
Aside from that question, my other main thought at the moment is whether any concerns should arise from how what is set out in the consultation paper reflects very closely how the system operates in London:
- Applications of potential strategic importance (“PSI applications” in the jargon) are defined by way of various detailed categories (e.g. proposals for at least 150 dwellings or at least 15,000 m2 of commercial floorspace)
- The local planning authority would consult with the mayor when the PSI application is made (familiar to us in London as the stage 1 referral) and the mayor would give their views, indicating whether they have no wish for further involvement
- Unless the mayor has indicated that he or she does not wish for further involvement, the authority would notify the mayor of their ”minded to grant or refuse” decision (familiar to us in London as the stage 2 referral), giving the mayor 14 days to decide whether to intervene either by directing refusal or by calling the application in for the mayor’s own determination.
- If the mayor calls in the application, he or she determines the application either by holding a hearing or (not previously the case in London) by written representations.
- The Secretary of State can still call in the application at any time and if the mayor has refused the application, the applicant can appeal in the usual way.
It’s somewhat worrying that planning in London is being used as a blueprint for elsewhere in the country. It’s certainly no silver bullet. In London these procedures add significant time and complexity to application processes. The applicant will want to sound out the mayor’s team at an early stage on any major scheme, so pre-app discussions become more complicated. Negotiations with the mayor’s team often become as important as negotiations with the LPA’s team, particularly (in London) on issues such as affordable housing quantum and viability. Dilemmas arise on occasion: whether to follow LPA officers’ steer or that of the mayor’s team, because priorities will sometimes differ. In practice the stage 2 referral stage takes far longer than two weeks because the mayor’s team will ensure that the application package is not referred until all material issues have been ironed out, including having the section 106 agreement having reached an advanced stage with issues relevant to the mayor usually agreed. Particularly given the detail of the current London Plan, detailed negotiations will also be taking place on any number of detailed issues which if unresolved may lead to a risk of a direction of refusal. If an application is called in by the mayor, there may well be a lengthy further period where negotiations with the mayor’s team are needed to “improve” elements of the scheme or section 106 agreement package.
How this this complex dynamic going to play out in different mayoral strategic authorities? Isn’t the honest answer that no-one knows? It is partly going to come down to the political priorities of individual mayors and partly down to whether mayoral teams will be sufficiently well resourced and managed to deal with referred PSI applications in a timely, predictable and consistent basis.
So, given that this system is being introduced to encourage new homes and economic growth rather than to provide an additional brake or check on decision making, how sure are we that the additional administrative steps involved will not introduce more cost and uncertainty to the system than is outweighed by the opportunity on occasion for a mayor to step in and approve a scheme which the LPA was going to refuse? And has the system been stress tested as against the risk of (elected) bad actors?
What might be mitigations against these risks?
- Perhaps going back to the concept of having these far-reaching powers only unlocked once a spatial development strategy is in place.
- Perhaps increasing the PSI application thresholds, at least to begin with?
- Perhaps closing loopholes that allow referral stage timescales to be elongated?
The consultation process runs until 5 October 2026.
Simon Ricketts, 24 August 2026
Personal views, et cetera





