Pre-Planning Advice — How to Use It and Why It Saves Time and Money

Pre-planning application advice is a formal (paid) service offered by local planning authorities that allows developers and homeowners to get written or verbal guidance from a planning officer on a proposed development before submitting a formal planning application.

• In a pre-application consultation, you present a description of your proposal — often with sketch drawings or a design brief — and the planning officer provides written advice on:
• •Whether the principle of the development is likely to be acceptable
• •What planning policies apply
• •What concerns the planning authority may have (design, neighbour amenity, Conservation Area impact, highway impact)
• •What additional information would be required in a full application
• •Whether planning permission is actually required, or whether the proposal would be Permitted Development

**Important**: pre-application advice is not a planning decision and does not bind the planning authority. If you subsequently submit a formal application, the decision is made on its full merits against planning policy — and a different planning officer may assess it. However, pre-application advice is a strong indicator of the planning authority's position and significantly reduces the risk of an unexpected refusal.

Pre-planning advice is most valuable when:

**1. Your proposal is in a Conservation Area or near a listed building**: planning sensitivity is higher, and the conservation officer's input is particularly valuable. A quick pre-application discussion can tell you whether a rear dormer or a particular extension design is likely to be supported, saving you the cost of full drawings for a scheme that won't get approved.

**2. Your proposal is complex or unusual**: an unusual design, a large extension, a roof extension on a flat, or a basement project where the principle of the development is uncertain.

**3. You are unsure whether planning permission is required**: the boundary between Permitted Development and requiring planning permission is not always obvious — particularly for combined side-and-rear extensions, certain roof alterations, and HMO conversions under Article 4 Directions. A planning officer can confirm the position.

**4. You anticipate neighbour objections**: if you are on difficult terms with a neighbouring property and expect them to object formally, pre-application advice can help you understand what conditions or design changes the authority would require to address the objection — allowing you to design around it rather than fighting it post-refusal.

**5. Your project is significant in investment terms**: for any project where you are spending more than £50,000, the cost of pre-application advice (typically £50–£500 for a householder project) is a very small insurance premium against the much higher cost of a refused application and redesign.

The process varies by borough, but typically:

**Step 1: Identify the correct route** Search your local authority's planning pages for 'pre-application advice'. Some boroughs have a specific online form; others use the Planning Portal's digital pre-application service. The fee and timescale vary by authority.

**Step 2: Prepare your submission** You do not need full architectural drawings for pre-application advice — sketch drawings, a site plan, and a clear written description of what you want to do is typically sufficient. For more complex proposals, better drawings produce better and more useful advice.

**Step 3: Pay the fee and submit** Householder pre-application fees in London are typically £50–£250 for a written response; higher (£300–£600+) for a meeting with a planning officer.

**Step 4: Receive the response** Most authorities provide a written response within 4–8 weeks. Some offer a meeting with a planning officer as part of the fee — this allows you to present and discuss the proposal in real time, which is more valuable than a written-only response.

• **Step 5: Act on the advice**
• Review the pre-application response with your architect or contractor. The advice will typically:
• •Confirm which parts of the proposal are acceptable and which are not
• •Suggest design modifications that would make the proposal acceptable
• •Flag any specific conditions likely to be imposed
• •Indicate whether a supporting statement (design and access, heritage) would be required

Pre-planning advice has limitations that homeowners should understand:

**It is not binding**: the planning authority can decide a formal application differently from the pre-application advice. Different planning officers may assess the application differently; policies may change; planning committee may override a delegated officer decision.

**It does not replace a formal planning application**: if planning permission is required, a formal application must be submitted and determined. Pre-application advice confirms the likely position — it does not grant any permission.

**It does not address Building Regulations**: pre-application advice covers planning only. Building Regulations (structure, thermal performance, fire safety) are a separate matter and are not covered by planning pre-application advice.

**It does not address party wall**: pre-application advice does not address whether Party Wall notices are required or what the neighbour's rights are. These are covered separately under the Party Wall etc. Act 1996.

**Conservation Area advice is indicative**: the conservation officer's response in pre-application advice tells you the likely position but not the guaranteed position — conservation assessment involves professional judgement that may vary between officers.