Contemporary Structural and Exterior Home Design

I am in need of expert assistance to beautifully articulate a contemporary exterior design for a residential project. Key tasks include structural planning incorporating an open floor plan, multiple levels, and the addition of energy-efficient features which are integral to the design's implementation.

Ideal skills and experience:
- A robust portfolio exhibiting a wealth of experience in contemporary residential exterior design
- Remarkable proficiency in creating open floor plans and multiple-level designs
- Strong understanding of energy-efficient architectural design, with prior projects showcasing this expertise.