Single-Story Home Extension Plans

I'm seeking detailed architectural plans for a single-story extension to increase our living space. The primary aim is to create extra living space including kitchen, central fire place.
We have some sketches available

Key requirements:
- Professional, detailed architectural drawings
- Compliance with local building regulations
- Experience with single-story residential extensions
- Ability to suggest functional and aesthetic design solutions with consultation as we know what we want


Please share samples of similar work and your qualifications. Thank you!