How to calculate interior cost?

To calculate interior cost in a realistic way, break it into measurable components. Most professionals use a per sq. ft. method, plus itemized costs for modular furniture, dΓ©cor, and civil work.


Step 1: Identify Your Built-Up Area

  • Measure total sq. ft. of your property (e.g., 1,200 sq. ft. for a 2BHK).
  • Interior costs are usually calculated on this base.

Step 2: Choose Your Finish Level

Approximate cost per sq. ft. in Gurgaon / Noida / Delhi NCR:

  • Basic: β‚Ή1,200–₹1,800 per sq. ft.
  • Mid-range: β‚Ή2,000–₹3,000 per sq. ft.
  • Premium / Luxury: β‚Ή3,500+ per sq. ft.

Multiply area Γ— rate to get an estimate.

Example: 1,200 sq. ft. Γ— β‚Ή2,000 per sq. ft. = β‚Ή24,00,000 (mid-range).


Step 3: Break Down Major Cost Components

  1. Modular Kitchen
    • Basic: β‚Ή1.5–₹3 lakhs
    • Premium: β‚Ή4–₹8 lakhs
  2. Wardrobes (per room)
    • Basic: β‚Ή70,000–₹1.5 lakhs
    • Premium: β‚Ή2–₹4 lakhs
  3. False Ceiling
    • β‚Ή120–₹200 per sq. ft.
  4. Flooring / Wooden Flooring
    • Tiles: β‚Ή80–₹150 per sq. ft.
    • Premium wood: β‚Ή250–₹600 per sq. ft.
  5. Painting / Wallpaper
    • β‚Ή12–₹30 per sq. ft.
  6. Furniture (beds, sofa, dining, tables)
    • β‚Ή2–₹10 lakhs depending on customization.
  7. Lighting & Electricals
    • β‚Ή1–₹3 lakhs average for a 2/3BHK.

Step 4: Add Professional Fees

  • Designers may charge 5–20% of project cost OR
  • A fixed fee of β‚Ή40–₹200 per sq. ft.

Step 5: Add a Buffer

Always add 10–15% buffer for price fluctuations, last-minute changes, or upgrades.


βœ… Quick Formula

Interior Cost = (Total Area Γ— Cost per sq. ft.) + Furniture + DΓ©cor + Designer Fees + Buffer

Do you want me to create a ready-to-use Excel / calculator template where you can enter your flat’s size (e.g., 2BHK 1200 sq. ft.) and finish level, and it will compute your total interior cost automatically?

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