Home Addition Plans for two story

I need detailed architectural plans for a home addition on a multifamily home. The addition will be two floors off one end of the building.

Key requirements:
- Architectural drawings for a two-story addition
- Structural engineering considerations
- Compliance with local building codes
- Detailed materials list

Ideal skills and experience:
- Experience with multi-family home additions
- Strong knowledge of building codes and regulations
- Proficiency in architectural design software
- Portfolio of similar projects

Please provide a timeline and cost estimate.