Planning Timeline: What to Expect from Start to Decision

Understanding the planning process can feel daunting, especially if you are approaching it for the first time. One of the most common questions we hear is: how long will planning take?

While every project is different, there is a clear sequence most planning applications follow. Knowing what happens at each stage — and how long it typically takes — helps set realistic expectations and reduces uncertainty.

This guide explains the UK planning timeline, from early preparation through to decision.

Stage 1: Preparation and Feasibility (2–4 weeks)

Before any drawings are submitted, time spent at the beginning is crucial.

At this stage, the focus is on:

  • understanding the site and its constraints

  • reviewing local planning policy

  • testing massing and scale

  • establishing a realistic brief and strategy

This early feasibility work helps avoid delays later and ensures the proposal aligns with both the client’s ambitions and planning requirements.

Stage 2: Pre-Application Advice (Optional but Valuable) (4–8 weeks)

Not all projects require pre-application advice, but for more complex sites it can be extremely useful.

A pre-application submission allows the local authority to provide early, informal feedback on:

  • scale and massing

  • design approach

  • potential planning concerns

While it adds time at the front end, pre-application advice can significantly reduce the risk of refusal or major redesign once a full application is submitted.

Stage 3: Planning Drawings and Documentation (3–6 weeks)

Once the design strategy is agreed, the planning drawings are prepared.

This typically includes:

  • proposed plans, elevations and sections

  • site location and block plans

  • design and access statements (where required)

  • heritage or sustainability information, if relevant

At this stage, accuracy and clarity are key. Well-prepared drawings help planning officers and consultees understand the proposal quickly and reduce requests for clarification.

Stage 4: Submission and Validation (1–2 weeks)

After submission, the local authority checks that the application is complete. This is known as validation.

If any documents are missing or incorrectly prepared, the application may be delayed. Once validated, the statutory determination period begins.

Stage 5: Statutory Consultation Period (8 weeks)

For most householder and minor planning applications, the council has 8 weeks to make a decision.

During this period:

  • neighbours are notified

  • internal and external consultees are contacted

  • a planning officer assesses the proposal against policy

It is common for officers to request minor clarifications or amendments during this stage. Prompt responses can help keep the application on track.

Stage 6: Planning Decision

At the end of the consultation period, the application will be:

  • approved,

  • approved with conditions, or

  • refused.

Conditions are common and usually relate to materials, details, or compliance with specific standards. These can typically be addressed before construction begins.

What Can Affect the Planning Timeline?

While the statutory period is fixed, several factors can influence how smoothly the process runs:

  • site constraints (conservation areas, listed buildings)

  • scale and complexity of the proposal

  • quality of initial drawings

  • responsiveness during consultation

Early strategy and clear communication are often the difference between a smooth process and a prolonged one.

Our Approach at Studio AVC

At Studio AVC, we guide clients through the planning process from the outset. We combine feasibility testing, design clarity, and planning awareness to create proposals that are robust, well-considered, and aligned with local policy.

Where appropriate, we also work closely with planning consultants to ensure each application is supported by a clear and realistic strategy.

Final Thoughts

Planning is rarely instant, but it does not need to be overwhelming.

Understanding the planning timeline — and what happens at each stage — allows you to plan with confidence and make informed decisions. Taking the time to prepare properly at the beginning often saves months later on.

Good planning outcomes start with good preparation.

  • UK Government – Planning Permission Guidance
    Official government guidance explaining when planning permission is required and how applications are assessed.
    https://www.gov.uk/planning-permission-england-wales

  • Planning Portal
    The national resource for planning applications, forms, and guidance in England and Wales.
    https://www.planningportal.co.uk

  • Local Planning Authority (LPA) Websites
    Each council publishes local planning policies, validation checklists, and timescales.
    (Search your local council website for “Planning Policy” or “Local Plan”)

  • Studio AVC – Planning & Design Services
    Learn more about how we support clients through feasibility, planning strategy, and applications.
    https://www.studioavc.com