Interior design fees in the UK vary by project scope, location, and the studio’s experience, but most practices charge either a fixed project fee, hourly rate, or percentage of construction spend. The cost reflects the depth of work across Discovery, Concept, Design & Specification, Commission, and Reveal stages — not simply the finished look. Understanding what you’re paying for helps you choose the right partner.
What do interior design fees actually cover?
An interior design fee is payment for strategic thinking, spatial planning, material selection, and project management across several defined stages. It is not a cost per square metre or a markup on furniture. When a studio takes on a project — whether a London Embankment apartment, the Witham project, or a commercial space like Beaulieu Dental Practice — the fee funds the expertise needed to move from a blank brief through to handover.
The five-stage process — Discovery, Concept, Design & Specification, Commission, and Reveal — each demands distinct skills. Discovery involves understanding how the space will be used, the client’s constraints, and the building’s character. Concept establishes the direction and spatial strategy. Concept, Design & Specification produces detailed drawings, finishes schedules, and supplier specifications. Commission manages the ordering and coordination of goods. Reveal is the installation and handover. Each stage requires time, technical knowledge, and accountability. The fee covers all of it.
How do UK studios typically charge for interior design work?
There are three common fee structures in UK interior design practice. A fixed project fee sets a single price for the entire scope — most common for residential and smaller commercial work where the brief is clear from the start. An hourly rate is charged by the hour and suits projects where the scope may shift or where clients want flexibility. A percentage of construction or furniture spend is sometimes used on larger projects, particularly commercial builds like Tone at Canary Wharf, where the design decisions directly influence material and labour cost.
Fixed fees are popular because they create certainty for both studio and client: you know what you’re paying, and the studio commits to delivery within that investment. Hourly rates offer transparency around effort but require a clear understanding of hours expected. Percentage-based fees align the studio’s incentive with the quality and value of the finished work, but suit only projects where budget and scope are already substantial. Most studios will discuss which structure fits your project during the initial conversation.
What factors influence the cost of interior design?
Project size is the first variable. A commercial project like Fruittii Hair Salon or Keystones Estate Agent occupies a different scale and complexity from a residential apartment, and the fee will reflect that. Residential work in London — like the London Embankment Apartment — typically costs more than equivalent work outside the capital, partly because specification standards and material availability differ, and partly because London properties often require more detailed coordination with listed building consent, planning, or surveyor reports.
The clarity and ambition of the brief also matters. A client who arrives with a precise vision and existing structural constraints (as with the Witham project) may require less exploratory time in Discovery and Concept than a client building from a blank slate. Similarly, a project that stays close to existing services and structure will demand less Commission work than one requiring substantial mechanical, electrical, or structural coordination. The studio will estimate these variables during the early stages and price accordingly.
The studio’s experience in your sector carries weight too. A studio with a portfolio in dental practice design (Beaulieu Dental Practice) will cost more for healthcare work than a generalist, because that expertise reduces risk and rework. The same applies to hospitality, retail, or bespoke residential work. You are paying partly for the avoidance of costly mistakes.
Does the fee include sourcing and purchasing goods?
This depends on the agreement. Some studios include sourcing — the identification and specification of furniture, finishes, and fixtures — within the design fee. Others charge sourcing separately, either as a line item or as a percentage of goods purchased. The distinction matters because sourcing requires ongoing supplier relationships, material samples, quality oversight, and often negotiation of lead times and pricing.
A studio that specifies a bespoke sofa or a run of custom joinery, as opposed to selecting an off-the-shelf product, invests more time but also gains more control over the outcome. The Commission stage of the process — where orders are placed and tracked — is where this work becomes concrete. Always clarify with your studio whether sourcing, ordering, and delivery oversight are included in the quoted fee or billed separately. Transparency here prevents misunderstanding later.
What should you expect to pay, and how do you compare offers?
Instead of asking what interior design costs in isolation, ask what specific scope you receive for the fee. A studio quoting a lower figure may be offering a Concept, Design & Specification only (drawings and schedules), with no Commission or Reveal support. Another may include full project management through handover. The difference in price reflects the difference in service. Request a written scope and phasing plan from each studio you interview, so you can compare apples to apples.
The most reliable way to choose a studio is to review their portfolio — their finished work in your sector or a sector similar to yours — and understand how they work. A studio like this one publishes real projects: commercial work across dental, hospitality, and estate agency; residential work in London and beyond. That clarity about process, finish standard, and the types of spaces they excel at is far more useful than a price alone. Cheap design often reflects rushed process or less experienced hands. Premium fees should reflect portfolio depth and a systematic approach to Discovery, Concept, Design & Specification, Commission, and Reveal.
How do deposits and payment schedules work?
Most studios request a deposit — typically at the start of the project or at the end of Discovery/Concept — to secure the team and timeline. The remainder is then split across milestones: often at the end of Concept, Design & Specification, at the start of Commission, and on Reveal or final sign-off. This structure protects both studio and client: the client knows money is held against deliverables, and the studio isn’t funding the project from its own cash flow.
Ask about the payment schedule upfront, and ensure it aligns with when you receive tangible work. If the studio is producing drawings and specification documents at the end of Concept, Design & Specification, that’s a natural point for payment. If Commission involves ordering on your behalf but without your liability, clarify whether that’s a separate billing phase. A well-structured payment plan is a sign of a professional practice.