TL;DR:
Interior designers in Bangalore price their work in three main ways — a flat retainer fee, a per square foot rate, or a turnkey contract that bundles design and execution into one number. Each one shifts risk and cost differently between you and the designer. Retainers are cheapest upfront but leave execution costs open-ended. Per sqft fees look simple but hide huge swings depending on what’s included. Turnkey contracts cost more but give you one number and one point of accountability. Know which one you’re signing before you sign it.
If you’ve met more than one interior designer in Bangalore, you’ve probably noticed something strange. You ask three studios for a quote on the same 3BHK, and you get back three completely different pricing structures — not just three different numbers. One says “our fee is a flat retainer.” Another says “we charge per square foot.” A third says “we do turnkey, one price, we handle everything.”
Nobody sits you down and explains what these actually mean. So most homeowners either pick whichever one sounds cheapest, or whichever designer they liked best in the meeting — and only understand the real cost structure three months into the project, usually right around the time an “additional” invoice shows up.
Here’s what each model actually means, who it benefits, and what to watch for.
DESIGN RETAINER
A retainer is a fixed fee you pay the designer purely for their design services — concept, drawings, material selection, project management, site visits. It does not include the cost of actual execution: labor, materials, carpentry, electrical work, painting.
Think of it like hiring an architect. You’re paying for their expertise and time, not the bricks.
Retainers in Bangalore for a 2-3BHK typically range from ₹40,000 to ₹1,50,000+ depending on the studio’s experience and scope. It’s usually the lowest upfront number you’ll see quoted, which is exactly why it’s the one that gets homeowners into trouble — because it’s rarely the full cost of your home. You still have to pay contractors, carpenters, and vendors separately, either coordinated by the designer or by you directly.
Who this suits: Homeowners who want design expertise but are comfortable managing execution themselves, or who already have a trusted contractor.
What to watch: Ask exactly what’s covered in the retainer and what isn’t. Site visits — how many are included before you’re charged extra? Revisions — is there a cap? And critically: who is managing your contractors day-to-day, and is that included in the fee or billed separately?
PER SQUARE FOOT FEE
This is the most commonly quoted number in Bangalore, and also the most misleading one if you don’t dig deeper. A designer quotes you a rate — say ₹1,400 or ₹1,800 per sqft — and multiplies it by your carpet area to get a headline number.
The problem is that “per sqft” means different things to different studios. Some quote it purely for design services. Some include basic modular work. Some include full execution. Two studios can both say “₹1,600/sqft” and mean two entirely different scopes of work — one might exclude false ceilings, wardrobes, and false flooring, while the other includes all three.
Who this suits: Homeowners who want a quick, comparable-sounding number across studios — but only if you insist on a detailed breakup before comparing.
What to watch: Never compare per sqft rates across studios without first asking for the inclusions list. Ask specifically: does this include modular kitchen, wardrobes, false ceiling, electrical, painting, and civil work? A lower per sqft rate with a shorter inclusions list is often the more expensive option once you add back what was left out.
TURNKEY CONTRACT
Turnkey means the designer (or their execution partner) takes full responsibility for design and execution under one contract and one price. You pay a single number, they deliver a finished home — design, materials, labor, project management, all of it.
This is the highest upfront cost of the three models, but it’s also the one with the least ambiguity. There’s one point of accountability. If something goes wrong on-site, it’s not “that’s the contractor’s fault, not ours” — it’s the same entity that designed it.
Who this suits: Homeowners who want to hand off the process entirely and don’t have the bandwidth to coordinate contractors, vendors, and site visits themselves — which describes most possession-stage buyers juggling a job and a move.
What to watch: Turnkey contracts should have a detailed Bill of Quantities (BOQ) attached — brand names, material specs, quantities — not just a lump sum. A turnkey quote without a BOQ is not actually turnkey, it’s a retainer wearing a turnkey label. Also check the payment schedule against project milestones, not calendar dates, so you’re not paying 80% before 80% of the work is done.
WHICH ONE SHOULD YOU PICK
There’s no universally “best” model — it depends on how much time and risk you’re willing to carry yourself. Retainer shifts execution risk to you in exchange for a lower fee. Turnkey shifts it to the designer in exchange for a higher one. Per sqft can be either, disguised as a single clean number — which is exactly why it needs the most scrutiny.
The one mistake to avoid regardless of model: signing before the inclusions are written down in the contract, not just discussed verbally in the meeting. “Don’t worry, we’ll sort it out as we go” is the sentence that costs homeowners the most money in Bangalore’s interior design market.
This is also one of the reasons we built Infrabob the way we did — every designer on the platform has to lay out their pricing model and inclusions clearly before a homeowner meets them, so you’re comparing actual apples to apples across studios instead of decoding three different pitches after the fact.
Not sure which model fits your project, or want a second opinion on a quote you’ve already received? WhatsApp us and we’ll help you read it properly before you sign anything.