I already have a basic single-storey layout for a 4-bed, 3-bath home with an extra powder room and a central quadrangle. What I need now is a fully resolved Chettinad-inspired design—complete with its signature intricate woodwork, Athangudi tile palette, traditional open courtyard and stout wooden pillars—taken all the way to presentation-ready drawings and an immersive 3D walk-through. Ground-floor scope • Refine the supplied plan, keeping the four bedrooms, three bathrooms and powder room exactly where intended while enriching every space with authentic Chettinad detailing. • Integrate the central courtyard so daylight and cross-ventilation flow naturally throughout the plan. • Show material finishes (tiles, timber, exposed rafters, lime plaster) on elevations and sections. Future expansion While this commission is for the ground floor, I want optional second-floor concepts sketched in: extra bedrooms, a flexible recreational lounge and a generous north-facing balcony. Your drawings should demonstrate how the existing structure and column grid will accept this future level without major demolition. Deliverables 1. Dimensioned floor plans, elevations, sections and roof plan in DWG/PDF. 2. Structural layout indicating pillar positions suitable for a later second floor. 3. Material and finish legend highlighting Athangudi tile zones and wood species. 4. 3D BIM or SketchUp model plus a rendered Lumion/Enscape walk-through (2–3 min). 5. PDF booklet and still renders suitable for contractor tendering and family review. Acceptance criteria • Courtyard proportions match Vastu recommendations for a Chettinad “mutram.” • Athangudi patterns referenced from authentic catalogues. • Walk-through shows daytime and evening lighting. • Second-floor concepts sit neatly within the current footprint and respect existing service shafts. I’m comfortable reviewing work in Revit, ArchiCAD, or SketchUp; just keep layer naming and units consistent. Once we agree on the concept, I’d like staged submissions for feedback before the final render pass. Looking forward to seeing your interpretation of this heritage-meets-modern family home.