Tools
How long until you move in?
Pick what you are building and how it will be approved. You get every stage from first call to handover, drawn to scale from the ranges we work to in our process, and the month you could be handed the keys.
- From our published timeframes
- Stage by stage, to scale
- A real programme comes with your quote
The calculator
Plan your timeline
Two choices. The chart redraws for your project, with the shortest time for each stage in solid and how long it could run in a lighter tone.
First call to handover
19 to 34 weeks
If you call this month
Handover around Mar 2027 to Jul 2027
You can often stay living at home while an extension is built.
| Stage | Weeks |
|---|---|
| Assessment & estimate | 1 to 2 |
| Design & approvals | 4 to 8 |
| Contract & selections | 2 to 4 |
| Construction | 12 to 20 |
Indicative only. Every project gets its own programme once we have assessed your home, and we give it to you with the quote. Stages can overlap and approvals depend on your council and site. Where we have not published a duration (the assessment stage and the DA pathway), the range is our working estimate.
Honest timeframes
Where these durations come from.
Every project gets its own timeline once we have assessed your home. Below are the ranges published on our service pages.
| Figure | What it covers | Where it comes from |
|---|---|---|
| 24 to 48 business hoursOur call back after your enquiry, to arrange the site consultation. | Our call back after your enquiry, to arrange the site consultation. | Our process |
| 4–8 weeksDesign and approvals: plans, engineering and council or certifier approval. A CDC takes about 4 to 8 weeks. | Design and approvals: plans, engineering and council or certifier approval. A CDC takes about 4 to 8 weeks. | Our process |
| 2–4 weeksContract and selections: final cost, contract review and your selections schedule, locked before site start. | Contract and selections: final cost, contract review and your selections schedule, locked before site start. | Our process |
| 12–20 weeksHome extension on site. | Home extension on site. | Home extensions |
| 12–24 weeksSecond storey addition on site. | Second storey addition on site. | Second storey additions |
| 16–30 weeksFull internal renovation on site. | Full internal renovation on site. | Home renovations |
| 9–14 monthsSingle dwelling custom home on site. | Single dwelling custom home on site. | Custom homes |
| up to 6 monthsA Development Application through council, where one is needed, can take up to 6 months, depending on council. A CDC takes about 4 to 8 weeks. | A Development Application through council, where one is needed, can take up to 6 months, depending on council. A CDC takes about 4 to 8 weeks. | Home renovations |
Keeping to time
What keeps a programme on track.
- 01
Expensive questions first
The engineer looks before we price, and the scope is written before the contract. Questions asked in week one cost nothing; in week eight they cost weeks. - 02
Selections locked before site start
Tiles, tapware, flooring and colours are chosen and confirmed at step 7, because mid build selection changes are where budgets and timelines go to die. - 03
The right approval pathway
We choose between a CDC through a private certifier and a DA through council for your property, prepare the documents and answer the questions that come back. - 04
One project manager
A named person runs your build day to day and is introduced before construction starts. You get a weekly update whether or not there is good news in it. - 05
Weather and the roof
On a second storey there is a short period with the roof off. We plan weather protection and tell you in advance when it is safer to be out of the house. - 06
Changes, in writing
Changes are priced and timed in a written variation, and none goes ahead until you sign it. Read the ten steps.
Planning the budget too? Try the extension, second storey or renovation cost calculators, or read about custom homes in Sydney.
Keep planning
More tools
- 01
Home Extension Cost Calculator
Size, rooms and finish in, an honest price range out, with what is driving it.
Size · type · kitchen & bathroom · finish
Open the tool - 02
Second Storey Cost Calculator
Price a new upper floor against our fixed price packages, bedroom by bedroom.
Floor size · bedrooms · bathrooms · stair · finish
Open the tool - 03
Renovation Cost Calculator
Pick the rooms, tell us the house, see where a renovation budget really goes.
Rooms · house age · structural walls · finish
Open the tool - 04
Extend or Build Up?
Extend at ground level or add a level: cost, time and yard compared for the same space.
Space to add · yard size · finish
Open the tool
Get a programme for your home.
A builder walks your home with you, then prepares a written, itemised estimate: inclusions, exclusions and preliminaries listed separately. We respond within 24 to 48 business hours. No cost, no obligation.