Project note
Many extensions require architectural plans, engineer input and council approval before construction can begin.
Extensions
Extensions and Additions
Extensions need careful planning because new work must connect cleanly with an existing home. Cornerstone Builders manages the practical details that affect structure, access, finishes and daily disruption.
What Cornerstone Builders Manages
Typical projects include additional bedrooms, home offices, second-storey additions, living-area extensions, garages, entertainment areas, patios, granny flats and structural alterations.
Before work begins, the team reviews the existing structure, access constraints, required approvals, engineer input and how new materials will match the existing property.
- Additional bedrooms and home offices
- Living-area and entertainment extensions
- Garages, patios and granny flats
- Second-storey additions
- Structural alterations and wall removals
- Temporary protection and site access planning
- Material matching and finishing coordination
Planning notes
How This Work Is Kept Under Control
The details are settled as early as possible so the build can move through the programme with fewer surprises.
Project note
Where concealed issues are found in the existing structure, the work is documented and discussed before additional repairs proceed.
Variation orders
Changes are documented, priced and approved before additional work proceeds.
Questions
Extensions and Additions FAQs
Common questions should be answered plainly before a homeowner makes contact.
Will my extension need council approval?
Many extensions do need approval, especially where the building footprint, structure or use of space changes. The exact requirement depends on the plans and property.
Can you match existing finishes?
Cornerstone Builders plans for material matching early, but exact matches depend on the age of the home and availability of existing products.
Can we stay in the house during the work?
Sometimes, but it depends on the scale of demolition, services affected, safety requirements and access to the work area.
Project consultation
Planning a Build or Renovation?
Tell us about your property, plans and expected timeline. We'll arrange an initial discussion and explain the next steps.