Key Takeaways
- •Design-only consultations range from ₹40 to ₹150 per sq.ft based on architect experience.
- •Percentage-based fees typically sit between 10% and 18% of the total execution budget.
- •Turnkey firms incorporate design fees into an all-inclusive BOQ, avoiding separate upfront design billing.
- •Ensure your agreement clearly lists 2D electrical layouts, 3D photorealistic views, site visit counts, and material sourcing assistance.
1. The Three Fee Models Explained
Model A: Flat Per-Square-Foot Fee. Common for clients who only need architectural layouts, 3D renderings, and detailed carpentry drawings, planning to hire their own labor.
Model B: Percentage of Project Cost (10–18%). The designer curates all materials, inspects on-site carpentry weekly, negotiates with vendors, and oversees quality control.
Model C: Comprehensive Turnkey Fixed BOQ. The design fee is included in a guaranteed execution contract where the studio takes complete end-to-end delivery responsibility.
2. The Danger of "100% Free Design" Claims
Large online platform aggregators aggressively advertise "Free 3D Design". In reality, their design team uses pre-made catalog templates. The design cost is recouped through hefty 25% to 35% markups on prefabricated particle-board cabinets that don’t fit bespoke wall angles.
Fee Models for Residential Projects in Kolkata
Swipe horizontally to compare →
| Model | Typical Cost | Scope of Deliverables | Best Fit For |
| Per Sq. Ft. Design | ₹45 – ₹120/sq.ft | 2D Plans, 3D Renders, BOQ | Homeowners managing trusted carpenters |
| Percentage Fee | 12% – 18% of budget | Design + Weekly Site Supervision | Custom bespoke luxury projects |
| Turnkey All-Inclusive | Bundled in BOQ | Complete turnkey design + execution | Busy professionals requiring peace of mind |
Insider Trade Tip
The Site Supervision Loophole
Clarify upfront how many physical site visits are included in your contract. Some designers charge a low fee for drawings, but then charge ₹2,500 per site visit when carpenters request clarification on tricky plumbing or electrical alignments.
Consult with LUXiHOME (Free Consultation)
Whether you are planning a complete interior fit-out or building a new residence in Kolkata, schedule a 100% free consultation with LUXiHOME to review your floor plans and receive transparent cost estimates.
Related Articles
HIRING & VERIFICATION • KOLKATA
