We design exceptional custom homes for any block

Home Design Agency was established by a team of licenced builders, designers and estimators that previously worked together in the residential custom home design and construction industry over the last 15 years. In this time, we have established a solid understanding of the trials and tribulations that many clients face when deciding to build a custom designed home in Sydney, NSW Australia.

Over this time, our team has assisted over 300 families and investors design & build quality custom designed homes & duplexes locally including the Northern Beaches, Upper and Lower North Shore, Eastern Suburbs, Inner West and Sutherland Shire. 

Home Design Agency services a broad range of residential clients consisting of custom new homes, custom duplexes, major renovations and alterations, boarding houses and more.


Our core focus is that you, the client, have an exceptional custom designed home with us, combined with our experience in project management of the approval process and we, together, negotiate the best possible outcome for custom home builder selection and tender management process. 

With our talented Design Team, Licenced Builders, Estimators and Project Managers combined with our end-to-end project management of your construction process, we believe this is the future of quality custom home building ensuring a tailored, personal service for an exceptional outcome.

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'I have worked with the team at HDA over the last 10 years and currently on my 5th successful build. I didn’t need to look anywhere else. A few meetings with Joel (Design Manager) was all it took to entirely custom design my new home! Their service was excellent and the team extremely knowledgable in handling both CDC and DA conditions. I have a great relationship with all members of the team and look forward to my upcoming build. Thank you!'


—  Stanley Y, Northbridge, NSW