Here’s a simple budget-friendly interior design cost calculator framework you can use (or build) yourself + rough benchmarks for India / NCR.
Cost Calculator Framework
You can implement this in Excel / Google Sheets / app. Steps:
| Input | Variable | Typical Range / Notes |
|---|---|---|
| Area (sq ft) to be designed | A | e.g. 100, 200, 500 |
| Type of rooms / elements | R | e.g. living, kitchen, bedrooms, bathrooms |
| Quality / finish level | Q | Economy / Mid / Premium |
| Design & supervision fee % | D% | e.g. 5% – 15% |
| Contingency margin | C% | e.g. 10% – 15% |
Formula structure:
- Material & labor cost estimate = A × base rate per sq ft × quality multiplier
- Design & supervision cost = (Material + labor) × D%
- Contingency = (Material + labor + design) × C%
- Total estimate = Material + labor + design + contingency
You can break down “material & labor cost” further by room, category (flooring, carpentry, finishes, lighting, furniture).
Benchmarks / Rate Estimates (India / NCR)
These are ballpark figures. Use them as guidance, not final values.
- Entry / budget interiors: ~ ₹250 – ₹500 per sq ft (YF Decor)
- Mid / decent finishes: maybe ₹500 – ₹1,500 per sq ft depending on complexity.
- Designer / premium finishes: might exceed ₹1,500+ per sq ft for high end.
- Some sources say new designers in Delhi may start from ₹40–₹70 per sq ft (for limited scope) (DsignDpo)
- For full home interiors, many designers / firms quote a percentage of the total project cost (5%–15%) as their design / supervision fee (The Architects Diary)
Example: You have 2000 sq ft apartment, want mid finishes (₹700/sq ft):
- Material & labor = 2000 × 700 = ₹14,00,000
- Design fee (say 10%) = ₹1,40,000
- Contingency (10%) = ₹1,54,000
- Estimated total = ₹16,94,000
If you want, I can build you a ready Excel / Google Sheets version of this cost calculator (India / NCR oriented) and send you a template. Do you want me to prepare that?
