Reserved matters or discharge of conditions: which applies
Reserved matters and condition discharge use the same portal and carry different statutory clocks. One lapses an outline permission if you miss it; the other does not.
An application for approval of reserved matters and an application to discharge conditions arrive at the council through the same portal, and they do very different jobs. Reserved matters settle the parts of an outline permission that were deliberately left open, and they run to the clock in section 92 of the Town and Country Planning Act 1990. Condition discharge, made under article 27 of the Town and Country Planning (Development Management Procedure) (England) Order 2015, deals with details the council wanted to see before, during or after construction. Getting the choice wrong between reserved matters or discharge of conditions changes which deadline bites, what you pay, and whether a missed date can be recovered at all.
One of the two can destroy a permission. The other usually cannot.
What an outline permission leaves open
Article 2 of the Development Management Procedure Order defines reserved matters as access, appearance, landscaping, layout and scale. An outline permission grants the principle of development and defers some or all of those five matters to a later application. Which ones were reserved is stated on the decision notice, normally in the description of development and in a condition requiring their submission.
The outline is not a blank cheque. Where layout is reserved, article 5 of the same Order requires the original application to state the upper and lower limits for the height, width and length of each building, and the development to which the permission relates. Those parameters bind the reserved matters application. A scheme that comes back at nine metres when the outline capped the envelope at eight is not a reserved matters application at all, and an officer who spots it will ask for a fresh full application or a section 73 variation first.
Scale is where most schemes come unstuck, because clients treat the outline massing as indicative. It is not indicative if it was fixed as a parameter.
What a condition discharge application covers
Conditions sit on any permission, full or outline or reserved matters, and each one has a trigger. Conditions precedent must be satisfied before development begins. Pre-occupation conditions bite later, usually before the first dwelling is occupied or before the use starts. Compliance conditions run for the life of the development, so there is nothing to discharge.
Since section 100ZA of the 1990 Act came into force, a council cannot impose a condition requiring something to be done before development begins without the applicant's written agreement, which is why you sometimes see a condition reworded from "prior to any development" to "prior to above ground works" during the eight week period. Read the final notice rather than the officer's draft, because the wording that survived is the wording you have to discharge.
A discharge application does not change a condition. It supplies the details the condition asks for and asks the council to confirm they are acceptable. If you want the condition itself altered, that is a section 73 application, and a different fee.
The deadlines side by side
| Point | Reserved matters | Discharge of conditions |
|---|---|---|
| Statutory basis | section 92 of the 1990 Act, articles 2 and 5 of the DMPO 2015 | article 27 of the DMPO 2015 |
| Deadline to apply | within three years of the outline grant, unless the condition sets a different period | whatever the condition's trigger says, with no single statutory backstop |
| Deadline to start works | two years from final approval of the last reserved matter | not applicable |
| Determination period | eight weeks, or 13 weeks where the development is major | eight weeks |
| Fee basis | the same scale as the equivalent full application, with a flat fee for later tranches once the full amount has been paid | a flat fee per request, lower for householder development |
| Effect of missing it | the outline permission lapses and cannot be revived | breach of condition, and the start of works may be unlawful |
Both fee scales were uplifted in December 2023 and are indexed annually on 1 April, so quote from the current schedule on GOV.UK rather than from a spreadsheet you built last year. One point worth banking: a discharge request costs the same flat fee whether it covers one condition or seven, so batching related conditions into a single submission is free money, provided the evidence for each is actually ready.
Where the council misses its own deadline on a discharge application, section 74A of the 1990 Act allows a deemed discharge notice in some cases. Several categories of condition are excluded from that route, and the list sits in the Procedure Order, so check it before relying on the mechanism.
What happens when a date is missed
Miss the three year window for submitting reserved matters and the outline permission is gone. Section 73 cannot rescue it, because that power does not reach a time limit condition whose period has already run. The site goes back to square one, and the application that replaces it will be judged against whatever policy and whatever biodiversity gain rules apply on the day it is submitted, not the day the outline was granted. For a site with an awkward housing land supply history, that can be the difference between a consent and a refusal.
Miss a condition precedent and the position is different but still serious. The principle from Whitley v Secretary of State for Wales is that works carried out in breach of a condition precedent are not a lawful start, so the development is unauthorised and the permission can expire underneath it. The Court of Appeal applied that thinking again in Greyfort Properties v Secretary of State for Communities and Local Government, where a levels condition had never been discharged and the permission was held never to have been implemented.
Late discharge is sometimes possible, and councils often accept a late submission without fuss on a minor matter such as materials. But that is discretion, not entitlement.
Submitting reserved matters and conditions together
On most outline consents the sensible sequence is reserved matters first, then the conditions that depend on the approved layout. Drainage, tree protection, levels and construction access all key off the layout drawing, so submitting them in parallel invites a request for revised details once the layout moves by two metres.
Three exceptions are worth planning for. Conditions requiring survey work with a season attached, such as an emergence survey for bats, should be commissioned early and submitted as soon as the window allows. Biodiversity gain is now a deemed condition under Schedule 7A to the 1990 Act, and the gain plan has to be approved before development begins, with a phased plan route for outline permissions that is worth reading properly if you are comparing biodiversity net gain with an ecological impact assessment. And archaeological evaluation conditions often need a written scheme of investigation agreed with the county archaeologist before any fieldwork, which adds weeks nobody budgets for.
For the reserved matters submission itself, councils commonly ask for a design statement even though the statutory requirement for a Design and Access Statement attached to the original outline application. Check the local validation list. A short policy note explaining how the reserved matters respond to the outline conditions is rarely required, and it does more to move a case along than another elevation.
Reading the outline decision notice properly
Work through the notice in this order before you quote a client a programme.
- Find the description of development and note exactly which of the five reserved matters were reserved.
- Find the time limit condition and diarise both dates: the last day for submitting reserved matters, and the two year start clock that begins on the final approval.
- Read article 5 parameters and any approved parameter plan, then check the current scheme against them.
- Sort every remaining condition into conditions precedent, pre-occupation and compliance, and mark which ones depend on the approved layout.
- Check whether the biodiversity gain condition applies and whether a phased plan is contemplated.
- Note any condition that ties into a section 106 obligation, because the obligation is enforced separately and its triggers rarely match the condition wording.
That list takes about twenty minutes and no other risk control on the job costs so little. A Planning Statement for the reserved matters submission can then quote the condition numbers directly, which saves the case officer cross-referencing and tends to shorten the first round of comments. Householder schemes work differently again, and the split between a householder application and a full application is worth understanding before you start.
Draft the supporting documents for a reserved matters or condition discharge submission on PlanScope by entering the postcode and answering the guided questions, then check them against the decision notice you have just read.
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.
Frequently asked questions
Can I apply to discharge conditions before reserved matters are approved?
You can, but on most outline consents it wastes money. Drainage, levels, tree protection and construction access all depend on the approved layout, so details submitted before the layout is settled usually have to be resubmitted. The exceptions are season-dependent survey work and the biodiversity gain plan, both of which should be started early.
What is the deadline for submitting reserved matters?
Section 92 of the Town and Country Planning Act 1990 sets a default of three years from the grant of the outline permission, unless the permission's own condition specifies a different period. Development must then begin within two years of the final approval of the last reserved matter. Always read the condition rather than assuming the default.
Does a condition discharge fee change with the number of conditions?
No. The fee under the current fees regulations is charged per request, not per condition, and a lower flat fee applies to householder development. Batching related conditions into one submission therefore costs the same as submitting a single one. Fees were uplifted in December 2023 and are indexed each April, so check the current schedule.
Can a lapsed outline permission be extended?
Not through section 73. That power does not reach a time limit condition once the period has expired without development beginning, so an outline permission that runs out cannot be revived. A fresh application is needed, and it will be assessed against the policy, fee scale and biodiversity gain rules in force when it is submitted.
What happens if work starts before a condition precedent is discharged?
The works are a breach of condition and, following the approach in Whitley v Secretary of State for Wales, may not count as a lawful start of development at all. That matters because the permission can then expire while building continues. Councils sometimes accept a late submission on minor matters, but that is discretion rather than a right.
Do reserved matters applications need a Design and Access Statement?
The statutory requirement in the Development Management Procedure Order attaches to the original application rather than the reserved matters submission. Many councils still ask for a design statement on their local validation list, and most case officers expect one for a major scheme. Check the authority's published validation requirements before submitting.
Sources and further reading
This article is general guidance about the planning system in England and, where stated, the rest of the UK. It is not legal or professional advice. Check your local planning authority’s validation requirements and take professional advice for your specific site.