Reserved matters: the second chance to comment

An outline permission settles the principle of development. It does not settle what the buildings will look like, how tall they will be, where the roads run or what gets planted, and those details come back to the council later in a reserved matters application. For a neighbour who missed the outline stage, or who was told their concerns were "a matter for later", reserved matters consultation is the point at which later arrives.

The opportunity is real but narrow. Knowing which arguments are still live, and which the outline consent has already closed off, is most of the work.

What outline permission already settled

An outline permission grants permission for the development described on the decision notice, subject to the subsequent approval of the matters reserved. Once it is in place and unchallenged, the following are normally fixed: that development of that type can happen on that land, the quantum described (the number of dwellings, the floorspace, the use), the red line boundary, and anything tied down by an approved plan or a condition.

So an objection at reserved matters stage saying "this site should stay as fields" has nowhere to go. The council has already decided it should not. The same applies to objections about housing need, about whether the local plan allocation was right, or about the principle of vehicular access from a particular road if that access was approved at outline.

Read the outline decision notice before writing anything. It lists the matters reserved, and that list is the boundary of the discussion.

Matters still open at reserved matters stage

The reserved matters are defined in the Development Management Procedure Order 2015 as access, appearance, landscaping, layout and scale. Any of them can be reserved, and on a large site all five commonly are.

What that means in practice is more than it sounds.

• Layout covers the position of buildings, routes, open spaces and private gardens, and the relationship of new buildings to existing ones. Overlooking, overshadowing and back-to-back distances live here.
• Scale covers height, width and depth. A three-storey block where the outline indicated two storeys is a scale question.
• Appearance covers materials, elevations, fenestration, roof form and boundary treatment.
• Landscaping covers planting, retained trees, levels, surfacing and boundary planting.
• Access covers the position and design of the access point and the internal arrangement, within whatever was approved at outline.

Conditions on the outline permission also bite at this stage. If the outline required a landscape buffer of a stated depth, or a maximum ridge height, or the retention of a hedgerow, the reserved matters submission has to comply, and pointing out where it does not is one of the most effective things an objector can do.

Publicity on a reserved matters application

Here is the part that catches people out. The statutory publicity requirements in article 15 of the Development Management Procedure Order 2015 apply to applications for planning permission. An application for approval of reserved matters is a different animal, and councils' treatment of it varies: some notify neighbours and post a site notice as a matter of course, some rely on the weekly list alone.

So do not wait to be told. If you know an outline permission exists on a site near you, check the council's planning register regularly, or set up an alert where the system offers one. The council's statement of community involvement sets out what it has committed to do, and that document is the thing to quote if you think you should have been notified.

Where a consultation does run, the usual period is 21 days from the notice, and comments arriving after that are still normally taken into account if the application has not been decided.

Conditions and their discharge as a further stage

After reserved matters are approved there is usually a third round: applications to approve the details reserved by condition. Drainage design, construction management, external lighting, tree protection, contamination remediation, materials samples.

These are rarely publicised at all. They are also where several of the things neighbours care about most are actually decided: the hours of construction, the route construction traffic takes, where the site compound sits, how surface water is dealt with.

You can still write in. A short, factual letter about construction access on a narrow lane, sent when the construction management plan is under consideration, lands better than the same point made at outline stage three years earlier. Checking what the conditions and any obligations actually require is worth the effort, and the same discipline applies when you want to know what a section 106 agreement delivered.

Arguments that will be ruled out

Some points are not material planning considerations at any stage: loss of a private view, loss of property value, competition with an existing business, the identity or conduct of the applicant, boundary disputes, private rights of way and restrictive covenants. Those last three are real legal issues, just not planning ones.

Others are material but already decided. The principle of development. The number of homes, where the outline fixed it. The use class. The access point, where it was approved.

What remains is a decent list: overlooking and loss of privacy from specific windows, loss of light assessed against the layout, the height of a particular block against the adjoining houses, the loss of a tree the outline said would be retained, the adequacy of parking within the layout, refuse vehicle tracking, and the design quality of what is proposed against the council's own design policies.

Stick to those, and say which drawing number and which policy you are referring to.

Timescales and the submission deadline

Section 92 of the Town and Country Planning Act 1990 gives a default of three years from the outline permission to apply for approval of reserved matters, then two years from the final approval to begin development. Councils can set different periods, so check the notice.

Once submitted, a reserved matters application runs to the normal determination periods: eight weeks for most, thirteen for major development, unless an extension of time is agreed. Objections need to be in well before the end of that period, because the officer's report is written in the last fortnight.

If amended plans are submitted mid-course, whether you get another look at them depends on the council's practice, and the question of whether neighbours are reconsulted on amended plans comes up constantly on larger schemes.

Making the most of a narrow opportunity

Be early, be specific and be short. Name the drawing. Name the policy. Describe the effect on a particular window, garden or tree rather than on the area in general. Offer the change you want: a one-metre reduction in ridge height, a window obscured, a hedge retained.

Ask to speak at committee if the application goes there, and ask the case officer whether it will. Many reserved matters applications are decided under delegated powers, and a request to refer the matter to committee has to go through a ward councillor, which takes time to arrange.

And read the decision notice when it comes out, because it will list the approved drawings and any new conditions. Knowing precisely what was approved is what lets you tell later whether what is being built matches it, which is also the starting point for understanding what breach of condition notices achieve.

If you want to understand the documents a council expects at each stage, PlanScope's index of all 66 report types sets out what each one covers.

This is general guidance, not legal advice. Check the position with your local planning authority or a qualified professional before relying on it.