Understand how interior designers in Mumbai charge: percentage, per sq ft and turnkey models, what each covers and what to put in the agreement.
Short answer: Interior designers in Mumbai usually charge in one of three ways: a percentage of the project cost, a rate linked to area, or a turnkey package where design and execution are bundled. None is automatically better. What matters is that the fee, what it covers and what it does not cover are written down clearly before work begins. We do not quote fixed rates here, because fees depend on scope and the designer.
Few questions cause more confusion than "how much does an interior designer charge?" The answers you hear are often different because the people answering are describing different models. One designer quotes a design fee only. Another quotes a full package that includes carpentry, civil work and installation. Comparing the two numbers directly is like comparing the price of a recipe with the price of a finished meal.
This guide explains the three common models, the difference between a design fee and execution cost, what "free design" can really mean, and what to include in the agreement. It is meant to help you ask better questions, not to set a price.
First, separate design fee from execution cost
Every interior project has two broad parts.
- Design work. Site measurement, layout planning, concept, 3D design, material selection, drawings and the BOQ.
- Execution cost. The actual cost of materials, carpentry, civil work, electrical, painting, labour, transport and installation, plus project supervision.
Some designers charge for both separately. Others combine them into one number. Neither approach is wrong, but you must know which one you are looking at. Before comparing quotes, ask each designer to confirm what is included. Our guide on the interior designer versus contractor decision explains how roles differ.
The three common fee models
1. Percentage of project cost
The designer charges an agreed percentage of the total project cost. If the project cost is higher, the fee is higher.
- Advantage: The designer is paid for managing the whole project, including supervision, not only the drawings.
- Watch out for: Make sure the percentage applies to a defined, approved BOQ, so the fee does not rise silently as the scope grows. Also check whether the percentage is charged on materials you buy yourself.
2. Rate linked to area (per sq ft)
The designer charges a rate multiplied by the area. This can apply to the design fee only or to the whole project.
- Advantage: Easy to understand and budget at the start.
- Watch out for: Area is a blunt measure. A kitchen-heavy flat and a minimalist flat of the same size need very different work. Confirm what area is being used, such as carpet or built-up, and what is covered. We discuss this in why cost per sq ft is often misleading.
3. Turnkey package
One agreed price covers design, execution and handover. You deal with one team from planning to completion.
- Advantage: One point of responsibility and less coordination effort for you.
- Watch out for: A turnkey price is only as clear as the list behind it. Ask for an itemised BOQ so you can see materials, quantities and specifications. A lump sum without a list makes later changes and comparisons difficult.
Comparing the models side by side
- How the fee is set: Share of project cost; Area-based fee: Rate multiplied by area; Turnkey package: One combined price
- Best for: Larger or custom projects; Area-based fee: Simple, well-defined scope; Turnkey package: Owners wanting one team
- Main risk: Fee grows with scope; Area-based fee: Area ignores complexity; Turnkey package: Lump sum hides detail
- What to insist on: Approved BOQ as the base; Area-based fee: Definition of area and scope; Turnkey package: Itemised BOQ
- Who executes: Often the designer manages, sometimes you hire separately; Area-based fee: Varies; Turnkey package: Same team
Not sure which model suits your project? We are happy to explain how our process works and what is included at each stage. You can book a free site visit and ask us anything about fees, scope and the itemised estimate.
What does "free design" really mean?
You may see offers of free design. This can be perfectly genuine, but it is worth asking how the designer is paid. In many cases, the design cost is recovered through the execution price, material margins or a requirement that you use the designer's own execution team. That is not necessarily a problem, as long as it is transparent.
Ask these questions.
- Is the design really free, or included in the overall price?
- Will I receive the drawings, 3D design and BOQ even if I do not proceed?
- Can I use the design with another contractor, or is it tied to this one?
- Are materials specified clearly, so I can verify what I receive?
Honest answers to these matter more than whether the word "free" appears.
What a good fee should cover
Whatever model is used, a clear scope usually includes the following stages. Our step-by-step process goes through them in order.
- Site visit and measurement.
- Space planning and layout options.
- 3D design so you can see the result before building. See our 3D visualisation service.
- Material and finish selection.
- Itemised BOQ with specifications.
- Working drawings for carpenters and site teams.
- Supervision during execution, if the designer is managing the project.
- Final inspection and handover.
If one of these is missing from a quote, ask whether it is excluded or charged separately.
What to write in the agreement
A short, clear agreement protects both sides. Check that it states the following.
- Scope of work listed room by room or unit by unit.
- Fee structure and what it is calculated on.
- Payment schedule linked to stages such as design approval, material delivery and completion, rather than a large payment upfront.
- Deliverables: drawings, 3D design, BOQ.
- Specifications for materials and hardware, in the BOQ.
- Change process: how additions or deletions are priced and approved in writing.
- Timeline with the assumptions behind it. Confirm society rules and site conditions.
- Exclusions: items you will buy yourself, such as appliances, loose furniture or decor.
Some extra costs that frequently surprise owners are covered in hidden costs in interior work, and a list of useful questions is in questions to ask before hiring an interior designer.
An illustration of why the label matters
Suppose two designers give you quotes for the same flat. The numbers below are made up to illustrate the idea. They are an example only, not a quote.
- Headline figure: Looks lower; Quote B (example only, not a quote): Looks higher
- Includes electrical and civil: No; Quote B (example only, not a quote): Yes
- Includes supervision: No; Quote B (example only, not a quote): Yes
- Materials specified: Not listed; Quote B (example only, not a quote): Listed in BOQ
- Likely final outcome: Extras added later; Quote B (example only, not a quote): Closer to the quote
The point is not that cheaper is worse or costlier is better. It is that you can only compare quotes after you know what each one covers.
How we suggest you decide
- Decide your scope: which rooms and which type of work.
- Ask two or three designers for a site visit and an itemised proposal.
- Compare line by line, not by headline figure.
- Check the process, the 3D design, and how changes are handled.
- Choose the one whose communication and clarity you trust.
For residential projects, you can read more about our approach on the residential interior design page.
Next step
If you would like a clear, itemised picture for your own flat, you can book a free site visit. We will measure the space, understand your priorities and share a 3D design and an itemised BOQ so you can decide with full information.
Frequently asked questions
How much do interior designers charge in Mumbai?
It depends on the model, the scope and the designer, so a single number would be misleading. The useful approach is to ask what the fee covers, how it is calculated and to compare itemised proposals.
Is a percentage fee better than a per sq ft fee?
Neither is automatically better. A percentage fee suits larger or custom projects if it is tied to an approved BOQ. An area-based fee suits simple scopes if the area and inclusions are clearly defined.
Does turnkey mean everything is included?
Not always. Turnkey means design and execution come from one team, but inclusions vary. Ask for an itemised BOQ and a list of exclusions so there are no surprises.
Can I pay only for design and execute elsewhere?
Some designers offer design-only services, but this varies. If you plan to use a separate contractor, confirm in writing that you will receive drawings, 3D design and BOQ that the contractor can follow.
