
Searching for how much architect drawings cost usually returns numbers pulled from thin air. The honest answer is that five factors set the fee — and once you understand them, you can compare quotes properly. We assess your project free and quote a single fixed fee, with revisions included until your council approves.
Planning drawings cost different amounts for different projects because the drawings themselves are different. A straightforward single-storey rear extension on a freestanding suburban house needs a modest drawing set; a basement beneath a listed terrace in a conservation area needs detailed sections, heritage-sensitive elevations and supporting documents the first project will never require. Any firm publishing one price for both is either padding the simple job or cutting corners on the complex one.
That is why we don't publish fixed figures, and why you should be wary of anyone who does. Generic figures found online are marketing bait: they describe an imaginary average project, and the fee quietly grows once someone actually looks at your property. The honest model works the other way around — assess the specific project first, then commit to a figure in writing that does not move.
This guide explains the five factors that genuinely determine what architect drawings cost, so you can read any quote — ours or anyone else's — and know exactly what you are paying for and where the hidden extras usually lurk. It also sets expectations on process: a valid householder application runs to a statutory 8-week determination (13 weeks for major schemes), with a 21-day public consultation period, so the drawings must be right before that clock starts.

Every credible quote for planning drawings is built from the same ingredients. Here is what moves the number and why.
A porch is not a wraparound extension, and a loft dormer is not a basement. More floors, more structure and more design decisions mean more drawing time — the single biggest driver of cost.
Accurate proposed drawings need accurate existing drawings. A small flat measures quickly; a large, extended or irregular property needs a fuller measured survey, and that effort is reflected in the fee.
A householder application needs plans, elevations and a site plan. Add sections, roof plans, streetscape elevations or building regulations detail and the drawing count — and the work — rises.
Conservation areas, listed buildings, Article 4 directions and borough policies under the Town and Country Planning Act 1990 demand extra care and sometimes extra documents. Permitted development is set nationally by the GPDO 2015, but where your property sits changes what your council will ask for.
The quiet decider. If revisions are chargeable, an optimistic headline fee can grow with every council comment. If revisions are free until approval — as ours are — the quote you accept is the amount you pay.
Council application fees, structural calculations to Part A and specialist reports (arboricultural, flood risk) are separate from drawing fees everywhere. A trustworthy quote itemises them upfront rather than surfacing them mid-project.
Tell us about your project and get a fixed, no-obligation quote back within one working day. If you don't need planning permission at all, we'll tell you that too — for free.
Planning drawings cost is set by five things — project scale, survey needs, the number of drawings, your council's requirements and the revisions policy — which is why credible firms quote each project individually rather than publishing one-size-fits-all prices. Before accepting any quote, check it confirms:
Our quoting process exists so you get a real figure for your real project — quickly, and without obligation.
Complete the quote form or call 020 7864 7245 with your postcode and what you want to build. It takes minutes and costs nothing.
We review your property, your borough's policies and any constraints — conservation area, Article 4, listed status — that shape what your drawing package must contain.
Within one working day you receive a single fixed fee with the full scope itemised: survey, drawings, submission and our free-revisions-until-decision guarantee.
No pressure and no expiry games. Compare our scope line by line against any other quote — that comparison is exactly what this guide equips you to make.
When one quote for architect drawings comes in dramatically lower than the rest, the difference is almost never efficiency — it is scope. The classic patterns: no measured survey, with drawings traced from old floor plans that fail validation; 'planning drawings only', with the site location plan, block plan or sections your council requires sold back to you later; and chargeable revisions, which turn every council comment into an invoice. Each gap is invisible on day one and expensive by week six.
The other pattern to watch is the drawings-versus-outcome gap. Cheap providers deliver files; their responsibility ends when the PDFs arrive in your inbox. But drawings have one purpose — approval — and a package that gets refused is worthless at any price. Ask every provider the same question: what happens if the council pushes back? If the answer involves further fees, the headline price is a down payment, not a total.
Our position is simple. The fee is fixed after a free assessment, the scope covers everything your council's checklist demands, submission and case-officer liaison are included, and revisions are free until you have a decision. That is what a planning drawings quote should look like — request yours and see the difference on paper.

There is no single answer, because the fee depends on project scale, survey needs, the number of drawings, your council's requirements and the revisions policy. Any flat figure quoted before someone has assessed your actual property is a guess. We provide a free assessment and a written fixed quote within one working day.
Because published prices for unassessed projects are misleading — they describe an average project that isn't yours, and typically grow once the real scope emerges. We believe the honest sequence is assessment first, then a fixed figure in writing that cannot drift. You get certainty instead of bait.
A complete quote covers a measured survey, existing and proposed floor plans, elevations, any required sections, a site location plan and block plan, application preparation and submission, and case-officer liaison. Crucially, it should state the revisions policy in writing. Missing items are where cheap quotes recover their margin.
Often, yes — and it is the most common source of surprise costs, because councils frequently request amendments during an application. Our revisions are free until your council issues a decision, so the fixed quote you accept is the full amount you pay for the drawing service.
No — the council's application fee is a statutory charge paid to your local planning authority and is separate from any provider's drawing fee. A transparent quote itemises it clearly. We calculate the correct fee for your application type and handle payment as part of the submission.
Usually, yes. The measured survey, design decisions and CAD models from the planning stage carry directly into the building regulations package, so one team doing both avoids duplicated work — and duplicated cost. We quote the stages together or separately, whichever suits your project timeline.
Answer five quick questions and get a free planning score for your exact address — instantly. Then, if you want the full picture, unlock the detailed analysis: your council's live approval rates, local precedents, constraints on your street and a step-by-step route to permission.