• New Homes
  • Renovations and Additions
  • Commercial

Design and Construction

This is a “one stop” service from initial consultation through to project completion, where you benefit from dealing with one company throughout the whole process.

From the initial brief we provide you with concept plans, cost estimates, working drawings, specifications and a fixed price contract and timeline for completion.

This “under one roof” design and construction process enables you to assess the feasibility of the development at an early stage, and also avoids nasty cost blow outs and surprises at tender stage.


Design and Construction Process

  • Initial meeting and discussion about your vision for your new home, renovation or commercial building, followed by site inspection

Stage 1 - Preparation of Plans Agreement signed, Deposit paid

  • Preliminary concept plans
  • Finalise estimating plans from preferred concept plan
  • Prepare preliminary cost estimate
  • Approval to commence Working Drawings

Stage 2 - Deposit paid

  • Contract documentation
  • Addenda selections finalised
  • Contract documents signed
  • Finance Approval (if required)
  • Statutory authority applications

Stage 3 - Deposit to Builder paid 6.5% of Contract Sum

  • Commence construction
  • Detailed construction program to keep you informed on progress
  • A dedicated team of qualified and experienced tradesmen
  • Follow up service and advice after hand over to ensure you are fully satisfied
residential building

Residential Builder

Your new home on your block. Our design or yours.

commercial building

Commercial Construction

Office, Industrial and special projects. We do it all.


Renovations & Additions

Breathe new life into your home.

South West Australia

South West Specialist

Bunbury and Augusta


Challis Builders - South West Building Excellence Since 1945

69 years of construction experience - we share your vision for a quality construction outcome.