CDC, DA & construction plans
Granny Flat Designer Sydney
A secondary dwelling needs to work on the site, comply with the right controls and remain practical to build. AusJu reviews access, privacy, parking, trees, drainage and the relationship with the main home before preparing approval documentation.
For homeowners, builders and investors considering a detached or attached secondary dwelling in Greater Sydney.
Send your property for a feasibility review →Confirm the approval pathway
We test the site and proposal against the relevant planning controls before recommending CDC or DA.
Use the site efficiently
Orientation, private open space, access, setbacks and the existing dwelling are resolved together.
Coordinate approval inputs
Survey, BASIX, engineering, stormwater and other project-specific information are coordinated into the drawing set.
Prepare for construction
Where included, we develop construction information and support builder queries or necessary design changes.
Typical scope
One coordinated path from feasibility to construction.
- Site and planning feasibility
- Concept plans and 3D visualisation
- CDC or DA documentation
- BASIX and consultant coordination
- Construction plans and builder support
Relevant experience
Real projects behind the service.
Toongabbie secondary dwelling
A real Sydney secondary-dwelling project demonstrating compact site planning and approval documentation.
FAQ
Common questions
Can every Sydney property have a granny flat under CDC?+
No. Eligibility depends on zoning, lot area, site constraints and the exact proposal. We assess the property before confirming the pathway.
Can AusJu coordinate BASIX and engineering?+
Yes, when included in the agreed scope. Specialist consultant fees are identified separately.
Free initial project consultation
Start with clarity before committing to the next step.
Speak directly with an experienced building designer about your project, likely approval pathway and next steps. Following an initial review, a complimentary site consultation may be available for suitable projects.
- 01Send the essentials
Provide the property address or suburb, project type, photos, and any available survey or existing plans.
- 02Free initial call
A short call to discuss your objectives, key constraints and likely approval pathway.
- 03Site consultation where suitable
Suitable, clearly defined projects within our service area may be offered a complimentary 30–45 minute site consultation.
Please note: A complimentary site consultation is preliminary and subject to project type, location and availability. It does not include a measured survey, existing-condition drawings, design work, written advice or a detailed feasibility report. Any formal measuring or documentation will be quoted before work begins.