Interior Design Costs London 2026: Full Price Guide
Updated: Sep 3
If you are considering hiring an interior designer in London, one of the first questions is usually, how much will it cost?
There is no single London interior design price. Fees vary considerably depending on the size of the property, the scope of the work, the level of design detail required and how involved the designer is from concept through to completion.
A designer helping you rethink the layout and finishes of one bedroom is providing a very different service from a studio developing a complete home renovation with bespoke joinery, lighting, detailed specifications and contractor coordination.
This guide explains how interior design fees are typically structured in London in 2026, what you can expect to pay, and what is usually included.
The short answer
As a broad guide, interior design fees in London can fall within the following ranges:
Type of service | Indicative design fee |
Consultation or design advice | £50–£150+ per hour |
Single-room design | £700–£1,000+ |
Several rooms or a substantial part of a home | £3,000–£10,000+ |
Full residential interior design | £5,000–£20,000+ |
Larger or highly bespoke London homes | £20,000+ |
These are indicative design-fee ranges, not fixed market prices. London interior designers use different fee structures, and the same property could receive very different quotations depending on the scope and level of involvement.
Furniture, materials, construction and other project costs are normally additional to the design fee.
Why do London interior design fees vary so much?
The biggest factor is not simply the size of the room. It is the amount of work required to design and deliver it.
A project might involve only a furniture layout and material direction, or it could require detailed drawings, bespoke joinery, lighting design, sourcing, procurement and coordination with contractors. The more decisions a designer is responsible for, the more time and expertise the project requires.
1. The size and number of rooms
A single bedroom is naturally a smaller commission than a full house. However, several smaller rooms can still become a substantial project when each space requires its own layout, furniture selection, lighting, materials and detailed design development.
2. The level of design development
A project focused on colour, furniture and finishes requires less technical work than a renovation involving bathrooms, kitchens, joinery or structural changes.
A more developed interior design project may include:
Space planning and furniture layouts
Lighting design
Colour and material schemes
Kitchen design
Bathroom design
Bespoke joinery
Furniture and lighting selection
Technical drawings and elevations
Finish and material specifications
Sourcing and procurement
Installation and styling support
3. Bespoke joinery and furniture
Custom elements require considerably more design development than selecting an existing product.
A bespoke wardrobe, media unit, kitchen, bathroom vanity or built-in shelving may require measured drawings, elevations, material specifications and coordination with the maker or contractor.
4. The property itself
Period properties can require additional consideration.
Victorian, Georgian and other older London homes often have architectural details worth preserving, while their layouts may need to be adapted for contemporary living.
Working within an existing building can therefore involve more spatial planning and detail than furnishing a straightforward new-build room.
5. How involved you want your designer to be
Some clients want design advice and a finished scheme they can implement themselves.
Others want the designer to remain involved through sourcing, procurement, contractor coordination, installation and final styling.
These are fundamentally different levels of service, so the fee should reflect the amount of responsibility being handed over.
How do interior designers charge in London?
There are several common ways of structuring interior design fees.
Fixed project fee
A fixed fee is agreed for a defined scope of work.
This can be particularly useful for residential projects because the client knows the design fee before the work begins.
The important part is understanding exactly what is included. A fixed fee should relate to a clear scope rather than simply a number of rooms.
Hourly or day rate
Some designers charge by the hour or day, particularly for consultations, smaller pieces of design work or projects where the scope is difficult to define at the outset.
Current London examples vary considerably, with publicly listed rates ranging from around £70–£100 per hour for some independent designers to day rates of several hundred pounds for more established or specialist studios.
Percentage of project value
Some interior designers charge a percentage based on the value of the project or the products being procured.
The percentage varies according to the designer and the services provided. It is particularly relevant where the designer is heavily involved in sourcing, procurement and project delivery.
The important thing is to understand what the percentage covers and whether it applies to design services, procurement, or both.
A combination of fees
Some studios use a combination of approaches.
For example, a fixed design fee may cover the design stages, while procurement or additional project involvement is charged separately.
There is no single correct pricing structure. The right model depends on the project and how much responsibility the client wants the designer to take on.
How much does interior design cost per room?
Per-room pricing can be useful as a very rough starting point, but it should not be treated as a universal London price.
A straightforward single-room design might start around £700, while a more detailed bespoke room could be £1,500–£2,500 or more.
Bathrooms and kitchens can sit towards the higher end because they often require more technical planning, material specification and coordination.
For example, a bathroom may involve:
Spatial planning
Sanitaryware selection
Tile layouts
Wall and floor finishes
Lighting
Brassware
Vanity or bespoke joinery
Detailed elevations
Product specifications
A kitchen can involve even more decisions around cabinetry, appliances, worktops, lighting, hardware and circulation.
This is why a room should not be priced purely according to its floor area.
How much does a full interior design project cost in London?
For a full residential project, design fees can range from around £5,000 to £20,000+, with larger or highly bespoke homes extending considerably beyond this.
The final fee depends on the number of rooms, the complexity of the design, the level of technical development and whether the designer is involved in sourcing, procurement and implementation.
A full-home project might include:
01. Initial consultation
Understanding the property, lifestyle, aspirations and scope of the project.
02. Space planning
Developing layouts and considering how the home will function as a whole.
03. Concept and design direction
Establishing materials, colours, furniture, lighting and the overall character of the interior.
04. Design development
Developing kitchens, bathrooms, joinery, furniture, lighting and finishes in greater detail.
05. Specification and sourcing
Preparing specifications and selecting materials, furniture, lighting and other elements.
06. Coordination and completion
Supporting the implementation of the design, depending on the agreed scope.
The exact stages vary from project to project.
What is included in an interior design fee?
This is one of the most important questions to ask before appointing a designer.
A lower fee may represent a smaller design service, while a higher fee may include significantly more time, drawings, sourcing and coordination.
Depending on the project, a residential interior design service can include:
Consultation and briefing
Space planning
Furniture layouts
Concept development
Mood and material direction
Colour schemes
Kitchen and bathroom design
Lighting design
Bespoke joinery design
Furniture and lighting selection
Technical drawings
Material and finish specifications
Sourcing
Procurement
Installation support
Styling
Not every project requires every service.
At Kachi Interiors, each project is scoped individually so the level of design support reflects what the home actually needs.
Is it cheaper to hire an interior designer for one room?
Not necessarily, but a single-room project will usually have a smaller overall design fee than a full-home commission.
A one-room project can still involve substantial design work if it includes detailed space planning, bespoke furniture, joinery, lighting, sourcing and technical drawings.
For this reason, the most useful question is not simply "How much does one room cost?" It is: "What level of design support does my room require?"
What should I ask an interior designer about their fees?
Before appointing a designer, ask:
Is the fee fixed or hourly?
What exactly is included?
Are drawings included?
Is sourcing included?
Is procurement included?
Are site visits included?
Are contractor meetings included?
Are furniture and materials separate?
Is there a procurement or management fee?
What happens if the scope changes?
When will I receive the final quotation?
A clear scope is just as important as the fee itself.
How does Kachi Interiors price interior design projects?
Kachi Interiors does not use fixed public room packages or standard design tiers.
Each project is considered individually and quoted according to the property, brief, number of spaces and level of involvement required.
A project might involve a single room, a kitchen or bathroom, several rooms, or a complete residential interior. The scope is developed around the needs of the home rather than fitting the project into a predefined package.
After an initial conversation, Kachi Interiors prepares a fixed quotation so the client understands the design fee before work begins.
For projects involving procurement, a separate procurement management fee may apply depending on the agreed scope.
Is hiring an interior designer worth it?
The value of an interior designer is not simply in choosing furniture or making a room look finished.
A good designer helps bring together the many decisions that make a home work: proportion, layout, materials, lighting, furniture, joinery and the practical details that are easy to overlook when decisions are made individually.
For a renovation, this can also mean identifying problems before they become expensive changes later in the project.
The greatest value often comes from seeing the home as a whole rather than treating every room as a separate project.
Choosing an interior designer in London
Price is important, but it should not be the only consideration.
Start by looking at the designer's portfolio. Does their work feel relevant to the type of home you are creating?
Then consider their approach.
Some designers specialise in highly decorative interiors. Others focus on architecture, minimalism, colour, historic properties or contemporary residential design.
The right designer should understand not only what you want your home to look like, but how you want it to feel and function.
At Kachi Interiors, the approach is centred on interiors with character, shaped by material, memory and craftsmanship. Projects are developed individually, with layout, materials, furniture, joinery and detailing considered as part of the same interior rather than as separate decisions.
Final thoughts
There is no standard price for interior design in London because there is no standard interior design project.
A single room can be relatively straightforward, while another may involve bespoke joinery, detailed technical drawings, specialist materials and extensive sourcing.
The most useful way to compare quotations is therefore to look beyond the headline fee and understand exactly what you are receiving for it.
If you are considering an interior design project in London and would like to discuss your home,
Frequently Asked Questions
How much does an interior designer cost in London?
Interior design fees vary according to the scope of the project. As a broad guide, a single-room project may cost around £700–£2,500+, while full residential projects can range from around £5,000 to £20,000+, with larger bespoke homes costing more.
How much does an interior designer charge per hour in London?
Hourly rates vary considerably. Publicly listed London examples currently range from around £70–£100 per hour for some independent designers, with more established or specialist studios charging considerably more.
How much does a full house interior designer cost?
A full residential interior design project in London may start around £5,000 and can exceed £20,000 depending on the size, complexity and level of service required.
Does an interior designer charge a percentage of the project?
Some designers use a percentage-based fee, particularly where they are involved in sourcing, procurement or project delivery. Other studios use fixed fees, hourly rates or a combination of approaches.
Does the interior design fee include furniture?
Usually not. Furniture, materials, finishes, joinery and construction are generally separate from the professional design fee.
How much does kitchen interior design cost?
Kitchen design fees vary depending on the complexity of the space and the level of technical development required. A bespoke kitchen design can involve detailed layouts, cabinetry, worktops, appliances, lighting, finishes and joinery, so it is usually priced according to the specific brief rather than a standard room rate.
How much does bathroom interior design cost?
Bathroom design can range from around £1,000 upwards for a detailed bespoke design, depending on the level of planning, specification, drawings, finishes and joinery required.
Does Kachi Interiors offer fixed packages?
No. Kachi Interiors now works on a bespoke project basis. Each project is scoped individually and a fixed quotation is provided after understanding the brief.
Disclaimer: Prices quoted are market estimates based on industry research and are provided for guidance only. Actual fees will vary depending on the designer, project scope and specific requirements. Always request a detailed quote before committing to any design service.