Last Updated on September 17, 2026
The finding
In 2026 the same single room can be designed for £195 or for more than £5,000. The room does not set the price. The fee model does, and most people never ask which one they are being quoted.
Compiled from published UK price pages. Last checked 17 September 2026.
What we did
We read the price pages that UK interior designers and design services publish for homeowners, and the reference figures the British Institute of Interior Design gives, and we lined the numbers up by fee model rather than by studio. We did not survey designers or collect private quotes. Every figure below is one a business states in public, cited at the end. Where sources disagree, we show the spread rather than an average, because the spread is the point.
What we found
Interior design in the UK is not sold one way. It is sold five ways, and the same job priced under two different models can differ by a factor of ten. Here is the 2026 picture.
| Fee model | Published UK range, 2026 | What it usually covers |
|---|---|---|
| Hourly | £25 to £150; London and senior work £180 to £450 | Advice and consultation, billed as used |
| Designer for a day | £500 to £1,200 | A six to eight hour on-site session |
| Fixed room package | £195 to £695 online; around £2,000 for a studio | A design for one room, delivered to a spec |
| Full-service room | £2,500 to £5,000; high-end can exceed £10,000 | Design, sourcing and project oversight |
| Percentage of project | 6% to 10% (BIID reference); some quote 10% to 20% as the design fee | The whole scheme, priced off the build cost |
On top of the fee, designers who buy furniture and finishes on your behalf commonly add a trade mark-up, published at 10% to 15% of the sourced items. That is not hidden and it is not wrong. It is simply a second number, and it is the one homeowners forget to ask about.
Why the spread is this wide
Because you are not comparing rooms. You are comparing what the fee includes. A £195 online design fix is one considered answer to one dilemma. A £5,000 full-service room is weeks of drawings, sourcing, ordering and site visits. Both are honestly priced. They are simply not the same product, and the word “interior designer” sits on top of both.
The practical read for a homeowner: decide the model before you shortlist. If you want a scheme and someone to run it, price the percentage and the full-service quotes against each other. If you want direction and will do the legwork, an hourly rate or a fixed package will cost a tenth as much. The mistake is to collect five quotes across five models and treat the cheapest as the winner.
Limits
These are published rates, not a Whito collection of private quotes, so treat them as the shape of the market rather than a quote for your project. Ranges move with region, with the scale of the work and with the materials specified. London sits at the top of every band. A blank where a designer publishes no price is common and is not a sign of anything.
Next step
If you run a design studio, the number a client meets first is now the one an AI assistant or a search result shows, not the one on your rate card. The free Whito Visibility Check shows how your business reads to both, with no email required. Our companion study on who the AI engines name as the best interior designer shows why that matters.
The full dataset behind Whito’s sector research, with every source row and collection date, is published as a Whito Data file. The studies themselves stay free to read and free to quote.
Sources
- My Bespoke Room, “How Much Does an Interior Designer Cost? UK Price Guide” (mybespokeroom.com), read 17 September 2026, citing the BIID hourly range and its own fixed package prices.
- House Designer, “How Much Does an Interior Designer Cost in the UK? (2026 Guide)” (housedesigner.com), read 17 September 2026.
- British Institute of Interior Design, hourly and percentage references (biid.org.uk), read 17 September 2026.
By Jacob Whitmore, Whito Research. Nobody pays to appear in Whito research.
If your business is named here and you think we have a fact wrong, email hello@whito.co.uk and we will check it and correct it. If you want to respond, send us a statement and we will publish it alongside. Full detail: Corrections, right of reply and removals.
