HausOlogy Design Studio is an interiors design studio based in the beautiful seaside village of Malahide, North Co. Dublin.

We are passionate interior designers who believe that good design can make a positive difference in the world and in our clients lives. We specialize in creating sustainable and beautiful spaces that reflect the personality and needs of our clients, whilst enhancing and protecting your health and wellbeing.

Sarah Costelloe is founder and creative director of HausOlogy Design and is a qualified Interior Designer , a graduate of the Interior Design Academy of Ireland. She has 25 years of business experience and several years in project management. She is a member of the Interiors Association of Ireland - a multifaceted organisation which supports professional accredited designers in Ireland, ensuring adherence to a professional code of ethics. Sarah has always had a love of art & design from a young age, which stemmed from her mother who is an artist and a collector of antiques.

Sarah has also completed a course on the principals of Biophilic Design (a concept used to improve our connection to the natural environment) and looks to adopt these principles where possible in her designs.

We are happy to collaborate with you at any stage of your project, (although earlier is best) and our services range from interior design consultations through to full implementation and detailed project and design management, bringing with us a team of very trusted and skilled trades.