User-controlled planning allowance
Retaining wall cost calculator
Enter the wall face dimensions and your own expected square-metre rate. The calculator shows the arithmetic without pretending to be a quote.
Visible method
How this is calculated for retaining wall Geelong planning
What it is: a user-controlled planning allowance based on wall face area. It is not a quote, engineering estimate, permit decision or statement of local market price.
Formula: wall length × average exposed height × the rate you enter. The upper figure adds the planning buffer you select.
Benchmark source: no benchmark figure or hidden coefficient is supplied by this site. Enter a rate from your own written quote, quantity-surveyor advice or contractor discussion. Consumer Affairs Victoria provides guidance on defining scope and written contracts.
Assumptions: the model treats the wall as a simple average face area. It ignores demolition, access, excavation, footings, drainage, engineering, permits, corners, stairs, fences, services, spoil, finish and property conditions unless your entered rate already includes them.