What happens after planning permission is granted

Permission granted is not the end of the process, and for a neighbour it is often the point at which the useful questions begin. The decision notice sets conditions, and those conditions are where the detail you objected to gets settled: materials, hours of work, landscaping, drainage, obscure glazing, the position of a bin store. Most of that detail is agreed later, between the developer and the council, and usually without any notice to you.

Knowing how that stage works is what lets a neighbour influence it. Not by reopening the principle, which is decided, but by making sure the conditions are discharged properly and complied with on site.

Reading the decision notice and its conditions

Download the decision notice from the council's planning register rather than relying on a summary. Read three things: the list of approved plans, the conditions, and the informatives at the end.

The plans list matters more than people expect. The permission authorises what is on those drawings and nothing else, so a change on site that does not match a listed drawing number is a potential breach even if it looks minor.

Conditions come in recognisable types. Some require details to be submitted and approved before a stage of the work. Some restrict the use or the hours. Some require something to be provided and then retained, such as a screen or a parking space. And some are simply time limits. Note which of yours is which, because the enforcement route differs.

Pre-commencement conditions and what they hold up

A pre-commencement condition requires something to be approved before any development starts. Materials samples, a construction management plan, a drainage scheme and an arboricultural method statement are common examples.

Two points are worth knowing. First, a council cannot impose a pre-commencement condition without the applicant's written agreement, so the set you see has been negotiated. Second, starting work before such a condition is discharged is a breach, and in some circumstances it can put the validity of the whole implementation in question.

If you see work beginning and you know a pre-commencement condition exists, that is a specific, evidenced point to put to the council rather than a general complaint. Note the date, take a photograph, and identify the condition number.

How conditions are discharged and whether you are told

The developer applies to the council for approval of the details required by a condition. There is a fee for each request, the council has eight weeks, and in most cases there is no statutory requirement to publicise the application or notify neighbours.

That is the single most surprising feature of this stage for objectors. The materials, the landscaping scheme and the construction hours can all be settled without anyone writing to you.

What you can do is ask. Request that the case officer notifies you when discharge applications are submitted, and check the register for the site reference every few weeks. Officers will often add a note to the file, and the register is public either way. Our note on discharging conditions or amending a permission sets out the differences between these routes in more detail.

The time limit for starting work

A full permission usually has to be implemented within three years of the date of the decision, under section 91 of the Town and Country Planning Act 1990. An outline permission works differently, with a period to apply for approval of reserved matters and a further period after the last approval.

Implementation does not mean completion. Section 56 of the Act treats the permission as begun once a material operation has taken place, and that can be as little as digging a foundation trench or laying out part of an access road. A developer who does that inside the three years keeps the permission alive, and there is no general obligation to finish within any period.

So a site that appears abandoned with a trench cut across it may well hold a live permission. That is frustrating, and it is also lawful.

Amendments after permission

Schemes change, and there are three routes with different visibility.

A non-material amendment under section 96A deals with minor changes only. There is no requirement to consult, and the test is whether the change is non-material, judged by the council.

A section 73 application varies or removes a condition and results in a new permission. It is publicised in the normal way, so you can comment. It cannot be used to change the description of the development itself, which is why a larger change needs a fresh application.

A fresh application is the route for anything beyond that, and it is assessed like any other, including on any policy that has changed since the original decision.

If you are watching a site, the amendment route chosen tells you something about the scale of the change. A section 73 application on a condition you cared about is worth a comment. Conditions also have to meet national tests on necessity, relevance and precision, as set out in our note on the national restrictions on drafting conditions.

Monitoring whether conditions are met

Keep it factual and specific. A useful record looks like this:

1. The application reference and the condition number
2. What the condition requires, quoted from the decision notice
3. What is happening on site, with dates and photographs
4. Whether the relevant details have been approved, checked on the register
5. Any correspondence with the case officer or enforcement team

Construction hours, wheel washing, dust suppression and delivery routes are the conditions most often breached in practice, and they are usually secured through a construction management plan whose contents follow a familiar shape, described in our note on a template structure for a construction management plan.

Raising a concern about compliance

Report it to the council's planning enforcement team in writing, with the reference, the condition and the evidence. Ask them to confirm which condition they consider engaged and what action they propose.

Understand the limits. Enforcement is discretionary, and the council decides whether action is expedient. It may issue a breach of condition notice, negotiate compliance, or conclude that the breach is too minor to pursue. You cannot compel it to act, and there is no third party right of appeal against either a permission or a decision not to enforce, as explained in our note on why neighbours cannot appeal an approval. Where you believe the council has handled the matter improperly rather than simply disagreed with you, the complaints procedure and then the Local Government and Social Care Ombudsman are the routes.

Time limits for enforcement action have been changed by the Levelling-up and Regeneration Act 2023, so check the current position with the council rather than relying on the old four and ten year rules.

As an illustrative example, a neighbour concerned about construction traffic on a narrow lane checks the decision notice, finds a pre-commencement condition requiring a construction management plan, checks the register weekly, sees the discharge application appear, and emails the case officer with a note about the lane's width and the school run. That email arrives while the officer is still assessing the plan. It is the most effective thing that neighbour can do after permission is granted.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.