Double-Story Bedroom Extension Plans

I need detailed architectural plans for a double-story extension on my house, specifically for the bedrooms. This extension should also include additional bathrooms to accommodate the new bedrooms.

Requirements:
- Extension is only for bedrooms
- Must include additional bathrooms
- Comply with Australian building regulations
- Designs should be practical and aesthetically pleasing

Ideal skills and experience:
- Experience in residential architectural design
- Familiarity with Australian building codes
- Proven track record with double-story extensions
- Strong design portfolio, especially in bedroom layouts