The joint local plan for Babergh and Mid Suffolk entered its formal preparation period on 21 October 2026, when the two district councils published their Gateway 1 self-assessment. Their new plan is intended to guide development across both Suffolk districts, with a stated period running from 2026 to 2045.
This is more than an administrative date. The councils say Gateway 1 starts the government’s 30-month plan-making timetable, putting April 2029 in view for adoption. It does not mean that a new development plan has been adopted, that proposed housing sites have been allocated or that any planning permission has been granted.
At the same time, the councils released a new assessment covering 1,008 potential development sites. For landowners and communities, that document may attract more immediate interest than the procedural milestone. I would caution against treating a site appearing in the assessment as a council endorsement of development: the councils expressly say otherwise.
What the Suffolk joint local plan will cover
The joint local plan is being prepared by Babergh District Council and Mid Suffolk District Council. It is designed to establish a new spatial strategy, development policies and potential site allocations, replacing the existing planning policy documents when adopted.
The councils’ published timetable gives the plan period as 1 April 2026 to 31 March 2045. The Gateway 1 document also recognises that England’s revised National Planning Policy Framework, published on 17 August 2026, changed the minimum post-adoption plan period. The authorities therefore say they will consider whether a shorter end date of 2040 would be appropriate before their next major consultation.
That is an unresolved choice, not an announced reduction to a 2040 plan. The final period will have consequences for the evidence about housing, employment, infrastructure and the distribution of growth. Until a decision is made, the councils’ published headline horizon remains 2045.
The councils have already completed a scoping consultation between 5 June and 31 July 2026. Their Gateway 1 summary reports more than 1,000 survey responses and says a summary of those responses will follow. The two authorities also describe joint work with neighbouring Suffolk councils to address issues crossing district boundaries.
What the new land assessment does, and does not, mean
A new Strategic Housing and Economic Land Availability Assessment, or SHELAA, has been published alongside progress on the joint local plan. It supersedes the 2025 Strategic Housing Land Availability Assessment and brings together potential sites from earlier calls for land. The document says that 1,008 sites were assessed, with 68 removed at pre-assessment and three discounted at its first assessment stage.
The assessment’s executive summary refers to 889 remaining residential sites. Parish tables identify proposed dwelling numbers across both districts, but these are capacities put forward and assessed within an evidence-gathering process. They are not commitments to build, evidence that each dwelling would be acceptable or a forecast of permissions likely to be issued.
In fact, the councils make the position unusually plain: the SHELAA does not allocate any land for development. The assessment is not itself a consultation on proposed allocations. Inclusion may identify a location for further consideration, while exclusion or adverse findings will need to be read in their methodological context rather than treated as an automatic decision on a future application.
The councils have provided separate appendices for unsuitable sites, residential sites in each district and non-residential sites. Anyone promoting or objecting to a particular site should use the detailed entry and accompanying constraints, not simply a map marker or an estimated dwelling figure.
Housing need adds pressure to the plan
The SHELAA sets out why the joint local plan will matter to housing land supply. The adopted Part 1 plan identifies annual housing requirements of 416 dwellings for Babergh and 535 for Mid Suffolk. By contrast, the October 2026 assessment records current standard-method local housing need figures of 790 and 757 dwellings a year respectively.
Those are different measures and should not be presented as a direct legal replacement for adopted requirements on the date of publication. They do, however, illustrate the scale of the evidence challenge. The councils’ report suggests around 16,000 homes may be required in Babergh and 14,500 in Mid Suffolk over the plan period, before the final spatial choices and policies are settled.
A land availability assessment tests possibilities, not the final planning balance. The next stages still have to consider whether sites are genuinely suitable, available and achievable, whether infrastructure can support growth and how environmental constraints and reasonable alternatives are weighed. No single dwelling total in a submitted-sites schedule answers those questions.
Consultation dates have moved
There is a notable timetable change. The councils’ updated detailed timetable, carrying a 21 October 2026 revision, now schedules consultation on proposed plan content and evidence from 1 June to 1 July 2027. The earlier outline on the joint plan’s landing page still refers to January and February 2027. The detailed timetable is the more recent dated record, but the councils say some first-of-month entries are placeholders until precise dates are available. There is a further discrepancy: the timetable promises at least six weeks for the content and evidence consultation but lists 1 June to 1 July 2027, and at least eight weeks for the proposed plan consultation but lists 1 February to 1 March 2028. Neither listed window is long enough. These endpoints must therefore be treated as provisional until the councils publish confirmed consultation dates.
Gateway 2 is indicated for September to October 2027, when the Planning Inspectorate is expected to give observations on the draft and its supporting evidence. Consultation on the proposed plan is scheduled for February to March 2028, followed by Gateway 3 in summer 2028, submission for examination in September 2028 and examination through the following winter.
The target adoption date remains April 2029. Those future milestones are programmed, not decisions already taken. Consultation responses, evidence, examinations and procedural requirements can change a timetable. Readers should distinguish today’s Gateway 1 self-assessment from a future finding at Gateway 2 or an Inspector’s eventual assessment at examination.
For the joint local plan, the immediate lesson is that the 30-month target is now running, but there is still time for the evidence and options to be challenged. The published engagement strategy is intended to explain how residents, businesses, parish councils and other organisations can participate.
What landowners, applicants and neighbours should watch
Owners of sites in the SHELAA should check the relevant appendix, site boundary and stated constraints carefully, alongside any existing planning permissions. A positive preliminary appraisal could help identify questions for future plan representations, but cannot substitute for a planning application or secure an allocation.
Prospective objectors should avoid the equal and opposite error of treating every mapped parcel as an imminent development proposal. The joint local plan will need to make choices through published policy and site-selection stages. Representations will carry more weight when they address actual evidence, including deliverability, infrastructure, flood risk, landscape and the reasonable alternatives.
For applicants with proposals being determined now, the adopted development plan remains the starting point, subject to current national policy and other material considerations. A newly issued Gateway 1 summary is not a newly adopted local plan. The weight given to emerging policies will depend on how far they have progressed, unresolved objections and their consistency with national policy.
Planning Geek has covered the revised National Planning Policy Framework, which provides important national context. In Babergh and Mid Suffolk, the practical priority is to keep the new evidence separate from the legal status of the adopted plan and to track the updated consultation timetable rather than an old diary entry.
Original sources
The councils’ Gateway 1 self-assessment records the 21 October 2026 start and plan-making preparations. Their new Joint Local Plan page links the October 2026 SHELAA, its appendices and the engagement strategy. The updated Local Plan timetable sets out the revised consultation dates and planned gateways.
The original October 2026 SHELAA explains the site-assessment methodology and the housing-need figures discussed above. All stages described here apply to the English districts of Babergh and Mid Suffolk; they do not describe the plan-making systems in Wales, Scotland or Northern Ireland.
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