
Extension Builder Austral
Professional home extensions for Austral homeowners, delivered by a licensed Sydney builder with carpentry in house.
NSW Licence No. 380408C · Fully insured · Liverpool Region
Fast quote
Get a written quote for your Austral job
Send the details and we will arrange a site visit in Austral and price the work in writing.
Home Extensions in Austral
Home Extensions done properly
ORT Construction Group builds home extensions in Austral where the existing house needs more usable space rather than a full rebuild. That covers ground floor extensions, additional living areas, extra bedrooms, kitchen and rear extensions, and the structural alterations that tie new work back into what is already there.
Because extensions expose existing structure, surprises happen. On Austral projects we plan the sequence early, open up carefully, and tell you what we have found before it turns into a cost surprise.
What we cover
Home Extensions services for Austral homes
Extension types
- Ground floor extensions
- Rear extensions
- Side extensions
- Bedroom and bathroom additions
- Kitchen and living area extensions
Structural works
- Structural alterations to the existing home
- New wall, floor and roof framing
- New openings and load bearing modifications
- Footings, slabs and subfloor works
- Tie in and make good to existing structure
Living and outdoor space
- Additional living areas
- Indoor and outdoor living extensions
- Alfresco and covered outdoor areas
- Decks and paved transitions
- New window and door openings for light and access
Construction coordination
- Complete construction coordination
- Extension carpentry in house
- Trade sequencing and site management
- Lock up, fit out and finishing
- Certifier and consultant liaison
Why ORT Construction Group
Working with a builder, not a middleman
Over 25 years of experience
Decades of residential building across renovations, extensions, carpentry and concrete works.
Licensed and insured
ORT Construction Group holds NSW Licence No. 380408C and carries the insurances required for residential building work in NSW.
Written quotes
Scope, allowances and exclusions are set out in writing so you can compare quotes on the same basis.



Process
How we run the job
- 1
Site visit and brief
We walk the home with you, discuss what the extension needs to achieve, and look at the existing structure.
- 2
Scope and quote
You receive a written scope and price covering structural works, framing, fit out and coordination.
- 3
Documentation
We work alongside your designer, engineer and certifier, or point you to the approvals your project needs.
- 4
Construction
Demolition, structure, framing, lock up and fit out are delivered by one team on an agreed program.
- 5
Completion
We finish, clean down, walk the works with you and close out any items before handover.
Questions
Home Extensions in Austral, answered
Is the carpentry done by your own team?
Yes. Framing, structural alterations and fit out carpentry are done in house, which keeps set out accurate and keeps the program moving.
Do you handle approvals for extensions in Austral?
We work alongside your designer, engineer and certifier and can advise what your project needs. We coordinate the construction side so the documentation and the build line up.
Do you do extensions and the internal renovation together?
Yes. Many Austral projects combine an extension with renovating the existing rooms so the finished home reads as one space rather than old and new.
Can you extend to create indoor outdoor living?
Yes. Wide openings, covered alfresco areas and level transitions between inside and out are common parts of the extensions we build.
Next step
Get a written quote for your Austral job
Send through the details of your Austral project and we will arrange a site visit, confirm the scope and put a written quote together.
Call 0411 586 136