Interior designers typically use one (or a mix) of these models:

Per Room Package
- Common for modular kitchens, bedrooms, or living rooms.
- Each room has a fixed price based on design complexity, materials, and size.
- Example:
  - Modular Kitchen: ₹2–6 lakh (basic to luxury)
  - Bedroom Wardrobe + Storage: ₹1.5–4 lakh
  - Living Room + TV Unit + False Ceiling: ₹2–5 lakh
  - Bathroom Vanity & Storage: ₹50k–1.5 lakh
Per Square Foot Model
- Most common in Delhi NCR for larger projects.
- ₹900–1,700/sq ft depending on finishes.
- Example: A 2,000 sq ft 4 BHK = ₹18–34 lakh.
Lump Sum / Project Cost
- A flat quote for the entire home.
- Used when the designer is handling end-to-end design + execution.
Design Fee + Execution
- Some high-end designers charge a separate design fee (₹50–₹500 per sq ft) and then either take a commission on execution or let you choose your contractor.

⚡ Example – Per Room Rates in Delhi NCR

Kitchen: ₹2.5–6 lakh (modular, mid to premium)
Master Bedroom: ₹2–5 lakh (wardrobe, bed, side tables, false ceiling)
Other Bedrooms: ₹1.5–4 lakh each
Living Room: ₹3–6 lakh (sofa, TV unit, ceiling, décor)
Dining Room: ₹1–3 lakh (dining table, crockery unit)
Bathrooms: ₹50k–1.5 lakh each (storage, vanity, lighting)

👉 So yes, if you want to budget room by room, designers can give you modular packages (say, just kitchen + wardrobes) without committing to the whole house.

🎯 Quick Tip

If you’re doing only 1–2 rooms, a per-room deal is better.
If you’re doing the entire house (3BHK/4BHK), per sq ft pricing is more cost-efficient.

✅ Answer in short:
Yes, interior designers do charge per room, especially for modular setups (kitchen, bedrooms, living). But for full homes, they usually prefer per sq ft or lump sum project cost.

👉 Do you want me to draft a room-by-room cost planner for a 4 BHK in Delhi (kitchen, bedrooms, living, dining, bathrooms) so you can see how the budget adds up?