Comprehensive House Redesign Needed

I'm seeking a professional designer to completely redesign my house.

Key requirements include:
- Add a toilet for the ground floor living room
- Create an electricity room plus to be store and server room for IT
- Redesign the entrance to be more inviting
- Improve overall room sizes and layout
- Enhance amenities and facilities
- Revamp aesthetic design for a modern look

Ideal skills and experience:
- Proven experience in residential design
- Strong understanding of space optimization
- Ability to create functional and aesthetically pleasing layouts
- Knowledge of building regulations and requirements

Please provide a portfolio with similar projects.