From 25 March 2026, new regulations reset how councils across England prepare, adopt and unwind joint local plans. For readers across Greater Manchester, Liverpool City Region, West Yorkshire, Tees Valley and the North East, this is not academic-it changes who must sign plans off, how Whitehall can step in, and what happens when one district wants to peel away. The instrument was signed by Housing Minister Matthew Pennycook at the Ministry of Housing, Communities and Local Government, following the department’s July 2024 renaming. (gov.uk)

The immediate headline for joint local plans is simple: every “relevant authority” has to adopt the plan for it to count. Where the law requires authorities to act together-on submission, examination steps and adoption-they must do so jointly. Where actions can be taken by each council (consultation, evidence gathering, scoping), they can proceed in parallel but still in connection with the same joint plan. This shuts down the grey area that has dogged multi‑district plans for years.

The Secretary of State’s intervention powers are also clarified. If ministers decide a joint plan is failing, they can only take over preparation for all of the authorities in that joint plan-not just one or two-but they can still issue directions to one or more of the councils that are dragging their feet. That should create clearer accountability without letting a single borough be singled out to have its plan lifted out of local hands while partners carry on as normal.

Revocation rules are tightened to deal with real‑world politics. When a new joint local plan takes effect across the same councils, the old one falls away automatically. If only some councils move to a fresh joint plan, the previous plan is revoked only for those areas. And if a council adopts a new single‑area local plan, the old joint plan no longer applies to that council’s patch. On top of that, the minister can-at a council’s request-revoke a joint local plan so far as it covers that council’s area, and even revoke a joint supplementary plan for that area or specific sites. That makes it easier to unwind stale joint policies without detonating the whole plan.

Minerals and waste planning is brought into the same modern structure. The regulations make clear that minerals and waste plans may be formed of one or more documents, and they update cross‑references so the Secretary of State can direct authorities to prepare a joint minerals and waste plan document whether or not it’s listed in their timetable. This is particularly relevant where quarries, waste transfer and treatment sites straddle council borders.

Greater Manchester’s Places for Everyone offers a live northern case study. Adopted on 21 March 2024 by the nine participating councils, PfE is now part of the statutory development plan in each of those districts. These new rules don’t reopen PfE, but they matter as councils prepare local updates and any site‑specific supplementary plans-especially if one district wants to move ahead faster than its neighbours. (manchester.gov.uk)

There’s also a clear link to combined authorities’ strategic plans. Liverpool City Region is preparing a statutory Spatial Development Strategy (SDS). Its own documents stress that Local Plans and Neighbourhood Plans in the city region must be in “general conformity” with the SDS-language now mirrored in updated orders and guidance. Expect the conformity test to bite as the SDS firms up and districts refresh their plans. (liverpoolcityregion-ca.moderngov.co.uk)

The same principle is set for the North East Mayoral Combined Authority. The 2024 establishment order already required councils to have regard to the SDS; accompanying provisions underline that Local Plans and supplementary plans must be in general conformity with it. The new regulations tidy up those references, reinforcing how the SDS sits above district plans across the area. (legislation.gov.uk)

For West Yorkshire and Tees Valley, government has confirmed both areas are within the national programme for sub‑regional Spatial Development Strategies. As SDS work accelerates, today’s changes will help line district plans up with the region‑wide framework-useful where mass transit, strategic employment land and housing growth need one map, not five. (gov.uk)

Plan‑makers also need to clock the national timetable. The Planning Inspectorate says the new local plan system runs alongside the old throughout 2026, with a three‑gateway process and digital‑first requirements; critically, plans can still be submitted under the existing system until 31 December 2026. That overlap gives officers a choice, but not endless time. (gov.uk)

Ministers are already leaning in on underperforming areas. Matthew Pennycook’s recent intervention letters, such as to Stockport, have set hard submission dates for slipping plans. With the new joint‑plan rules, targeted directions to one or more councils inside a wider partnership could become more common, while any full takeover would cover all partners. (assets.publishing.service.gov.uk)

What should northern councils do now? Check your governance: where joint action is mandatory, make sure decision‑making and scrutiny are lined up across partners. Re‑base your Local Development Schemes to reflect the 2026 transition window. For combined authority areas progressing an SDS, test “general conformity” early-don’t wait for examination to flush conflicts out. For developers and community groups, expect fewer procedural loopholes and clearer lines of responsibility as joint plans move from good intentions to enforceable policy. (gov.uk)