• A luxury bathroom extension in Augusta design by our Margaret River architects.
  • A modular tiny home accommodation design by our Margaret River architects.
  • A residential dunsborough design created by our Southwest architect team.
  • A Margaret River residential design by Margaret River architect Nicola Marchesi.

Margaret River Architects

Creating spaces that inspire and endure in the Southwest

NM Design is an architecture studio based in the heart of Margaret River, led by Registered Architect Nicola Marchesi. As Margaret River architects, with over a decade of experience delivering thoughtful, client-focused projects, the practice is dedicated to creating architecture that reflects the unique character of the South-west.

Our experience as specialist heritage architects, with backgrounds in conservation building work, informs a sensitive approach to designing with existing buildings and sites, carefully considering how to renovate, extend, enhance, and modernise while respecting the original fabric.

Our goal is to create timeless architecture with long-term value, not passing trends. We achieve this through thoughtful planning, considered materials, and forms that respond to their context. Every detail is designed to contribute to a cohesive, lasting outcome that fits within its context.

What we do

From home renovations, extensions and new builds to small-scale commercial, heritage and community buildings, NM Design crafts spaces that are both functional, enduring and grounded in place.

We guide our clients from concept to completion through the following design phases:

  • Concept Design & Development

  • 3D rendering & design style guides

  • Planning Approval including Development Applications

  • Full Architectural Documentation and Building License Permits

  • Contract Administration & Project Management

  • Interior design & styling

Discover our projects

Explore our portfolio of completed projects by NM Design.

Margaret River architect’s use of neutral textures and materials in interior design

Considered architecture design
achieved through collaboration

At NM Design, every project begins with a conversation. We listen carefully and collaborate closely to understand your needs, your site, and how you want to live or work. Whether it’s a new home, a renovation, an extension, or a commercial or community building, our role is to guide the process, not dictate it.

As experienced Southwest architects, we combine creative thinking with technical know-how to deliver architecture that reflects how you want to live and work—now and into the future.

We believe that the design journey should be as memorable as the final result, creating not just a building, but an experience to be valued for years to come.