A BlueGum granny flat takes 4 to 6 weeks to approve on the fast CDC path, then 12 weeks to build. Before that comes a site assessment, your design and the reports the approval needs. This page goes through each step and what you will see on site.
We look at your block and give you a fixed price, with the inclusions listed line by line.
You pick a design, change it to suit your block, and choose finishes.
Survey, soil test, engineering, BASIX certificate.
We lodge and manage the CDC or DA.
Slab to handover.
Final inspections, occupation certificate, keys.
Your home building insurance (HBCF) certificate must be in place before work starts or before you pay a deposit. Ask us for it.
| Weeks | Stage | What you will see |
|---|---|---|
| 1 to 2 | Site set-up and excavation | Fencing, machinery, earthworks, service trenches |
| 2 to 3 | Slab | Formwork, steel, plumbing, the concrete pour |
| 4 to 6 | Frame and roof | The shape of the building, then the roof |
| 6 to 8 | Lock-up | Windows, external doors, cladding |
| 8 to 9 | Rough-in | Electrical and plumbing inside the walls |
| 9 to 12 | Internal fit-out | Insulation, linings, cabinetry, tiling |
| 12 to 14 | Finishes | Painting, flooring, fixtures and fittings |
| 14 to 16 | Site clean-up and handover | Outside works in your contract, final inspections |
Most of our finished 2-bedroom projects list a build time of 12 weeks.
The longest took 20.
Yes, in almost all cases. There will be noise, trades and machinery, and part of your yard will be closed off, but the main house stays liveable.
12 weeks from slab to handover. Add the approval, 4 to 6 weeks for a CDC or 3 to 6 months for a DA, and the paperwork before it.
Yes. Book a time with us and we will walk the site with you. A building site has safety rules, so please do not go onto it on your own while work is under way.
Once the final inspections pass and the occupation certificate is issued, we walk through the granny flat with you, show you how everything works, and hand over the keys and your documents.
Tell us in writing and we will arrange to inspect it and fix it. In NSW, residential building work also carries statutory warranties: 6 years for major defects and 2 years for other defects.
Check whether your block qualifies,
or call BlueGum on 1300 060 651 to book a site assessment.
Or call our team on 1300 060 651
Building granny flats since
Since 2012
Builder licence
247388C, verifiable through NSW Fair Trading
Industry body
Housing Industry Association member
MBA NSW Excellence in Housing Awards
Winner 2021, Winner 2023, Finalist 2020
Completed granny flats documented on this site
70+
Approvals
CDC and DA, both managed in-house
Pricing
Fixed price after a site assessment, 2-bedroom from $134,990
Building granny flats since
Since 2012
Builder licence
247388C, verifiable through NSW Fair Trading
Industry body
Housing Industry Association member
MBA NSW Excellence in Housing Awards
Winner 2021, Winner 2023, Finalist 2020
Completed granny flats documented on this site
70+
Approvals
CDC and DA, both managed in-house
Pricing
Fixed price after a site assessment, 2-bedroom from $134,990
