Grayhouse is a female-led architecture practice based in the South West of WA. Focused on designing homes that are timeless, thoughtful, and deeply connected to their surroundings.

I’ve been drawn to architecture for as long as I can remember, endlessly rearranging my bedroom furniture, painting the walls a new colour and cutting out floor plans from the newspaper.

That early curiosity has grown into a deep passion for creating architecture that is timeless, honest, thoughtful, and connected to the landscape it inhabits.

Following my Master of Architecture at UWA, I spent time on the east coast and in London, travelling across Europe and immersing myself in its incredible architecture. Now, I’m fortunate to call Dunsborough home 

I have a particular love for raw, natural materials and sustainable design methods. Rammed earth has completely stolen my heart. By embracing passive solar design and other sustainable strategies, I aim to create spaces that are gentle on the planet and a joy to live in.

When I’m not working, you’ll find me in the kitchen, sharing love (and probably snacks) gathered around the island bench with a cup of tea. My two little daughters keep life bright and busy, reminding me every day why creating thoughtful, beautiful spaces for the future matters.

For me, architecture isn’t just work — it’s passion, creativity, and adventure rolled into one.

Welcome to Grayhouse.

Katie

Every practice evolves, and Grayhouse is no exception.

What began with a passion for architecture is evolving into a multidisciplinary design studio, with Jessica Rayment joining the team as Interior Designer. Jess brings an exceptional eye for interiors that are warm, layered and deeply personal, with a love for craftsmanship, natural materials and spaces that tell a story.

Together, we believe the best homes are considered holistically from the very beginning, where architecture and interiors are conceived as one, creating places that feel timeless, connected and uniquely their own.

We are so glad you’re here Jess!

  • "Katie made building our home an absolute joy. She really listened to what we wanted and brought ideas we hadn’t even considered. Every part of the house feels thoughtful, practical, and inviting. Living here feels effortless and we couldn’t be happier with the result."

  • "Katie guided us confidently through every stage of the project, making us feel informed and comfortable in what could have been a stressful process. We are so grateful to have shared this journey with her."