Home Renovations in Dunsborough and the South-West
Our team undertakes a limited number of premium renovation and extension projects each year, including:
- Heritage renovations and extensions
- Modern and coastal extensions and renovations
- Structural and floorplan remodeling
- Luxury internal renovations
Transform Your Home with Award-winning Renovation Experts
- WINNER 2024 Best Alteration & Addition | $550,000 – $650,000
- WINNER 2022 Best Alteration & Addition | $430-$530k
- WINNER 2022 Overall Best Alteration & Addition



Upgrade Your South-West Home with a MarkB Renovation and Extension
Whether you’re looking to modernise a tired layout or completely reimagine your living spaces, our renovation services are designed to elevate your home to new heights.
We work on a select number of major projects to ensure every renovation reflects the craftsmanship and attention to detail that Mark B Building is known for.
Our Approach: Bespoke Renovations Tailored to You
Every renovation starts with a conversation. We take the time to understand your vision, lifestyle needs and goals. Whether you’re working with an architect or need help engaging the right designer, we ensure your renovation journey is smooth and enjoyable. We focus on:
- Intelligent use of space
- Integration of new and existing structures
- High-quality finishes
- On-site project management
Renovation Portfolio
We proudly service homeowners across Dunsborough and the wider South-West region, including Eagle Bay, Yallingup, Quindalup, Siesta Park and beyond.