Pre-application advice gives you an officer's view before you submit a planning application. Its value depends on the question you need answered. It can help you choose between designs or investigate a difficult site, but adds cost and preparation time. Start by identifying a decision that the response could change.
What does pre-application advice actually establish?
In England, discussions can clarify relevant policies, likely concerns and the information needed for an application. The government's pre-application guidance says the process and evidence should be proportionate to the proposal. You do not necessarily need a complete application package, but officers need enough detail to give an informed view.
Advice is not planning permission and does not guarantee approval. Government guidance says it cannot predetermine the eventual decision, although it can be a material consideration. Treat a supportive response as evidence to inform your next step, not authority to start building.
If your question is whether a precise proposal would be lawful without planning permission, consider the lawful development certificate route. A certificate determines lawfulness against legal tests; it is not a judgement about whether officers like the design. That distinction follows the government's certificate guidance.
When is paying likely to add value?
As a practical budgeting judgement, pre-application advice is easier to justify when resolving uncertainty could prevent substantial wasted design work. Examples include choosing between materially different layouts, exploring an unusual infill site or understanding which specialist questions need investigation before committing to a scheme.
Write the decision first: “Should we develop option A, reduce it to option B, or stop?” Then identify what officers could usefully say. Ask which policy creates the concern, what change might address it and what evidence would be needed to demonstrate that. A general request for reassurance is less useful than a focused question with drawings.
It may be disproportionate where the design is straightforward, the relevant requirements are already understood and the answer would not change your next step. Compare the advice fee, preparation work and waiting time with the cost of proceeding to a properly prepared application. This is a project judgement, not a rule that all extensions should skip advice.
Ealing and Bristol: compare the actual service
The following published offers were checked on 8 September 2026. They illustrate why a headline fee alone is a poor comparison. Your site's council determines the available service; you cannot choose another authority because it charges less.
| Published service | Fee before VAT | Total including VAT | Included contact and timing |
|---|---|---|---|
| Ealing: 30-minute planner appointment, verbal advice | £259.50 | £311.40 | Planner calls at the chosen appointment time. |
| Ealing: 30-minute appointment with written advice | £321.78 | £386.14 | Written advice within 10 working days after the appointment. |
| Bristol: minor and householder development | £433.33 | £520 | Charging schedule includes zero meetings; service page states a response within 30 working days, with longer times notified for complex proposals. |
Ealing's booking page covers householders and simple extensions or alterations, among other categories. It separately lists an additional site visit at £103.80 before VAT, £124.56 including VAT. Appointment availability is not stated as a fixed wait on that page, so the ten-day written response should not be read as ten days from booking.
Bristol's service page links to an April 2026 charging schedule for 2026–2027. Its minor and householder row describes under five dwellings or under 500 square metres and lists £86.67 VAT. The additional hourly total is £310 including VAT. Confirm any additional work before authorising it. Do not assume the base service includes a meeting or site visit.
These are selected services, not complete fee schedules. Ealing directs larger projects to its formal pre-application process. Confirm the category and scope before paying. Our Ealing and Bristol pages provide starting points for local policy research.
What should you prepare?
Ealing's appointment page asks for the address, proposal description, photographs and existing and proposed plans or sketches. Bristol requires a plan with the site outlined in red and surrounding street and property details. Its service page also recommends contextual drawings, photographs and a statement describing the proposal.
For a useful discussion, organise the material around the uncertainty:
- Show the existing building and the proposed change clearly, with dimensions relevant to your question.
- Include neighbouring context rather than photographs cropped to your own walls.
- Label alternative designs consistently, so the response can identify which version was considered.
- List the specific questions and any evidence you have not yet obtained.
Keep the package proportionate. For example, if the issue is how a roof alteration would appear from the street, a clear street view and comparative elevations may make the discussion more productive than a detailed kitchen layout. Confirm specialist input with the council rather than assuming every paid enquiry reaches every relevant officer.
A hypothetical decision, not a promised saving
Imagine two homeowners considering similar rear extensions, one in Ealing and one in Bristol. Both are choosing between a larger layout and a smaller alternative because of a possible effect on neighbours. Their designer can prepare enough information to explain that choice before completing the full application drawings.
The Ealing owner might value a conversation followed by a written record. The Bristol owner should budget for the published service with no included meeting and check whether it can address the two options within the base fee. Neither should treat a favourable response as approval.
The useful comparison is the whole next step: council charge, designer's preparation, any additional advice and the time available before a decision is needed. No saving is assumed. If both owners would submit the same design whatever the reply, the case for paying is weaker.
What should you do with the response?
Record each concern, proposed change and outstanding evidence requirement. Ask for clarification where the response does not answer your original question. Keep the submitted drawings with the advice so that later revisions remain traceable.
Budget for the subsequent application separately using our planning application costs guide. If you have not established the likely route or council, start with the planning permission check.
Sources and review
Official government guidance, Ealing service pages and Bristol's linked April 2026 schedule were checked on 8 September 2026 with automated research assistance. Bristol's information-document link also opened the fee schedule during this check, so no separate detailed service specification was verified. Confirm scope, availability and the payable total before booking. The example above is hypothetical and does not assess an individual property.