Reading a consultant fee proposal: scope and exclusions

A consultant fee proposal for a planning report is a contract document, and the price is the least informative part of it. What decides whether the number holds is the scope paragraph, the exclusions list and the assumptions, usually printed in smaller type towards the end. Read those three sections first, then look at the fee, and the three quotes on your desk will stop looking similar.

Self-builders usually discover this at the point where the second invoice arrives.

Why the lowest number is usually the narrowest

Consultants price what they have been asked to price. Where the brief is vague, the responsible ones price a defensible minimum and list what sits outside it, while others price the minimum and say nothing.

Three quotes for an ecology appraisal can differ by a factor of two because one includes a single daytime walkover, one includes the walkover plus two emergence surveys, and one includes the walkover, the surveys, the metric calculation and the mitigation strategy. All three are honest. Only one of them is the job you need.

The fix is to write the brief before asking for prices. Name the outputs, the number of drawings the consultant will need to review, the council, whether the report is for pre-application or submission, and the date you intend to submit. A one page brief produces comparable quotes.

Reading the exclusions before the price

The exclusions list is where the real scope lives. Work through it line by line and mark each one as accepted, priced elsewhere or unresolved.

Common exclusions that turn into costs later:

• Attendance at meetings, including pre-application meetings and design team calls beyond a stated number.
• Responses to council or statutory consultee comments after submission.
• Any second survey visit required because of weather, access or season.
• Data purchase from the local records centre, the highways authority or a commercial dataset.
• Revisions arising from a change to the layout, however small.
• Appearing at appeal, or producing a proof of evidence.

The last two matter most on contested sites. If the application is likely to be refused and appealed, an exclusion for appeal work means the consultant who wrote the report is not committed to defending it, and you will pay again for someone to learn the site.

Assumptions that shift risk back to you

Assumptions are quieter than exclusions and often more expensive. They describe the world the consultant has priced for, and if the world turns out differently, the fee changes.

Watch for four in particular. An assumption that the site will be accessible on a single visit, which fails on tenanted properties and working farms. An assumption that existing survey information supplied by the client is accurate, which moves the risk of a bad topographical survey onto you. An assumption that the council will not require a particular additional study, which is exactly the thing you are paying for advice about. And an assumption that the planning application will be submitted within a stated period, after which the report may need updating and the fee is revisited.

None of these is unreasonable in itself. A survey season that has closed does cost more to work around, and a consultant who pretends otherwise is storing up a dispute. What matters is that you have read them, priced the risk, and know which of them you can control. Ask for the two you cannot control to be priced as a provisional sum rather than left open.

Revisions, and what counts as one

Most proposals include a stated number of revision rounds, often two, and define a revision as a set of consolidated comments returned in one go.

That definition does the work. Sending four separate emails over a fortnight can count as four rounds even though the total volume of comments is small. Collate your comments, and your architect's comments, into a single marked-up document each time.

Also check what happens when the design changes. A layout revision that moves a building 3 metres is not a comment on the report, it is a new input, and a well-drafted proposal will say so. Expect to pay for it, and expect the programme to move. The least costly way to avoid this is to commission the constraints work before the layout is fixed rather than after.

One further point on revisions. A proposal that offers unlimited rounds is not being generous, it is carrying a contingency inside the fee, and you are paying for revisions you may never need. Two rounds with a stated hourly rate beyond that is usually the better deal for a straightforward site.

Disbursements, data and survey costs

Disbursements are pass-through costs, and the proposal should say whether they are included, excluded or estimated.

Typical items include records centre data searches, historical mapping and environmental data reports, traffic count or parking survey subcontractors, laboratory analysis on contamination samples, plant hire for trial pits, licences for trip rate databases, and printing where a council still requires paper copies. Some of these are small. A set of laboratory suites on a contaminated site is not.

Ask for disbursements to be listed with an estimate and a statement of whether a handling percentage is added. A consultant who charges a mark-up on subcontractors is not doing anything improper, but you should know the figure.

Programme commitments and seasonal constraints

A fee proposal that gives a fee but no programme is half a document.

Ask for three dates: when work starts after instruction, when the draft is issued, and when the final version follows receipt of your comments. Then test those dates against the survey seasons that actually bind. Bat emergence surveys run roughly May to September, great crested newt work has a tighter spring window, breeding bird surveys sit in the March to August period, and a botanical survey in February tells you very little. A proposal offering a four week turnaround on an ecology report in November is either doing a desk study or is about to disappoint you.

Where the season has closed, say so in the application and explain the mitigation rather than submitting a survey done at the wrong time of year. Councils and their ecologists recognise an out-of-season survey immediately.

Comparing three proposals on the same basis

Build a single table and fill it in from each proposal. Scope of work, outputs and formats, number of site visits, meetings included, revision rounds, disbursements treatment, programme dates, response to consultee comments, appeal support, professional indemnity level, and fee. Then add a column for the total you think you will actually pay.

Two further checks. Confirm the named author's competence and membership, because some councils specify a suitably qualified author in their validation list and a report from the wrong person can be rejected on that basis alone. And ask who reviews the work before it leaves the office, which is the question that separates a consultancy from a sole trader with a template. The professional directory is one route to a reviewer where you have a draft in hand rather than an empty brief.

Where a draft already exists, the economics change. Producing a structured first draft and then paying a specialist to check, correct and sign it is a different transaction from paying for the whole document, and our note on signing off an AI-assisted draft sets out what the reviewer is taking on. For contested technical work, a separate peer review of the specialist report is often better value than a second full commission.

PlanScope's own prices are published rather than quoted: one free report, £50 per report, or £150 per month for the Professional tier, and you can see the detail on the pricing page. For specialist technical reports, qualified professional input may be required. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.