Building & interior design studio · Sydney
Considered design.
Clear paths to approval.
HFK Design Studio provides building and interior design, detailed documentation and approval coordination for residential and commercial projects across Sydney.
From initial concepts to DA, CDC and construction certificate documentation, we help bring projects from ideas to approved plans.

01 / The bigger picture
Design that considers
the bigger picture.
A good project begins with a clear understanding of what’s possible.
We consider the building and its interiors together, connecting design, documentation and planning requirements from the outset. With clear coordination, we help you make informed decisions at every stage.
02 / Selected projects
A sense of place.
Homes, workspaces and the spaces in between.



03 / What we do
Thoughtful design.
Practical direction.
From homes and duplexes to interiors and business spaces, we bring clarity to the next step.
Find the right starting point01Residential Building Design
Thoughtful homes, additions and alterations shaped around your site, your everyday life and the way you want to live.
New homes · Additions · Alterations
02Duplex & Dual Occupancy Design
Two homes, thoughtfully resolved. We consider site layout, privacy, liveability and planning requirements to develop a coordinated design and documentation package.
Duplexes · Dual occupancy · Site planning
03Interior Design
Considered interiors for homes and businesses. Space planning, kitchens, bathrooms, joinery, lighting layouts and the selection of materials, finishes, fixtures and fittings.
Layouts · Joinery · Finishes & fixtures
04Commercial Fitout Design & Change of Use
Practical, considered spaces for businesses. Design, documentation and approval coordination for fitouts and changes of use.
Retail · Hospitality · Workplace
05Granny Flats & Secondary Dwellings
Well-planned smaller spaces that make more of your property, with attention to privacy, liveability and the relevant approval pathway.
Secondary dwellings · Site planning
06Planning, Documentation & Approvals
Clear, coordinated drawings and guidance through planning requirements, from initial concepts to DA, CDC and construction certificate documentation.
DA · CDC · Construction certificates
04 / Our approach
A clear way forward.
Considered at every stage.
Communicated at every step.
- 01
Understand
We listen to your ideas and explore your site, priorities and planning context.
- 02
Design
We develop considered concepts that bring your brief and the site together.
- 03
Coordinate
We prepare documentation and coordinate the relevant consultant inputs.
- 04
Progress
We help move your project through the appropriate approval pathway.

05 / The studio
Considered spaces.
Clear conversations.
A Sydney building and interior design studio with a thoughtful approach to how places look, feel and work.
At HFK Design Studio, design thinking and technical understanding go hand in hand. We consider the details, the planning context and the people who will use a space.
We value clear communication, careful documentation and a collaborative process — so you understand where your project is heading and what comes next.
Start a conversation06 / Start a conversation
Let’s Discuss
Your Project.
A home, a duplex, an interior or a business space. Tell us a little about what you have in mind.
Residential & commercial building and interior design