planning news

planning application process

A clear guide to the UK planning application process. Learn when planning permission is required, how applications are assessed, timescales and how to avoid refusal.

The UK Planning Application Process Explained
For homeowners, landowners and small developers, the UK planning application process can feel complex and time consuming. Whether you are planning an extension, converting a building or bringing forward a new development, understanding how planning permission works is essential to avoiding delay, cost and uncertainty.
This guide explains the planning permission process in the UK in clear, practical terms. It sets out when planning permission is required, how applications are assessed by local planning authorities, how long decisions typically take and how to approach each stage with confidence.

When Is Planning Permission needed?
Not all development requires planning permission. Some works fall within permitted development rights, which allow certain changes to be carried out without submitting a full planning application. These can include limited house extensions, loft conversions and internal alterations, subject to size limits and conditions.

However, planning permission is usually required for:
new dwellings
larger extensions
changes of use
listed building works
development in conservation areas

In some locations, permitted development rights may be restricted or removed altogether. Establishing whether planning permission is required at an early stage is critical, as proceeding without consent can lead to enforcement action or costly redesign.

Not all development requires planning permission.
Some works fall within permitted development rights, which allow certain types of alteration without submitting a full planning application. These can include limited house extensions, loft conversions and internal works, subject to specific criteria.

However, planning permission is usually required for new dwellings, larger extensions, changes of use, listed building works and development in conservation areas. In some locations, permitted development rights may also be restricted or removed.
If there is any uncertainty, establishing whether consent is required at an early stage is essential. Proceeding without clarity can lead to delays, redesign or enforcement action later on.

Considering Pre-Application Advice
Pre-application advice provides an opportunity to discuss a proposal with the local planning authority before making a formal submission. A planning officer will consider the proposal in principle and highlight any policy or design issues that may need to be addressed.

While pre-application advice is not binding, it can be valuable in identifying constraints early and shaping a more robust application. For more complex or sensitive proposals, involving a planning consultant at this stage can help ensure the scheme responds appropriately to local policy and site-specific considerations from the outset.

Preparing a Planning Application
A planning application is assessed on more than just what is proposed. Local authorities consider how a development fits within its surroundings, how it relates to neighbouring properties, and whether it complies with national and local planning policy.
Applications typically include location and block plans, existing and proposed drawings and a supporting statement explaining the rationale behind the proposal. Depending on the site, additional information may also be required, such as ecology surveys, flood risk assessments or heritage reports.
The quality of this material is critical. Applications that clearly explain the proposal and address potential impacts are far more likely to progress smoothly than those submitted with minimal justification.

Submission and Validation
Most planning applications in England are submitted online via the Planning Portal. Once submitted, the local planning authority will review the application to ensure all required information has been provided. This is known as the validation stage.
If information is missing or incorrect, the application will not be validated and further details will be requested. This can delay the process, sometimes significantly. Careful preparation before submission helps avoid unnecessary disruption.

Consultation and Assessment
Once validated, the application is publicised, usually for a period of 21 days. Neighbours, parish councils and statutory consultees are given the opportunity to comment, and the assigned planning officer will begin a detailed assessment of the proposal.
The officer will consider consultation responses alongside planning policy and the overall planning merits of the scheme. Objections are taken into account, but decisions are made on planning grounds rather than the number of representations received.

How Planning Decisions Are Made
Most applications are determined under delegated powers by a planning officer. More complex or sensitive proposals may be referred to a planning committee, where elected councillors make the final decision based on the officer’s recommendation.
Local authorities aim to determine most applications within eight weeks, or thirteen weeks for larger developments. In practice, timescales can extend due to workloads or requests for additional information, which is why active monitoring of an application is important.

If Permission Is Refused
If an application is refused, there are usually options available. These may include revising the proposal and resubmitting, or lodging an appeal with the Planning Inspectorate. Appeals are assessed independently and focus on whether the local authority’s decision aligns with planning policy.
Appeals can be time-consuming and outcomes are not guaranteed. In many cases, refusals can be avoided altogether by addressing key issues early in the process and presenting a well-considered planning strategy.

After Approval: Conditions and Compliance
Planning permissions are often granted subject to conditions. These may require further details to be approved before work begins, or control how development is carried out.
It is important to read planning conditions carefully and ensure they are fully complied with. In some cases, formal applications to discharge conditions must be approved before development can proceed lawfully.

The planning application process does not need to be uncertain or overwhelming. Understanding how decisions are made and addressing key issues early can significantly improve both timescales and outcomes.

If you are considering a development and would like clear, practical advice tailored to your site, early planning guidance can help you understand your options and avoid unnecessary risk. Professional advice at the outset often saves time, cost and uncertainty later in the process.