Refine the envelope

Override height, setbacks, coverage and garden area to test a specific design.

The generated envelope is the rule-driven starting point. When you want to test a design that departs from it — a lower height, a deeper street setback, a wall on the boundary — the "Refine envelope" controls let you override each input and see the effect immediately.

1. 1

   Expand the controls

   Select "Refine envelope". A badge shows how many values you have overridden, for example "2 custom".

2. 2

   Set the pathway

   Under "DTC pathway", choose "Auto", "Clause 54", "Clause 55" or "Clause 57". Pathways the zone does not support are disabled and explain why on hover.

3. 3

   Adjust the numeric rules

   Each row shows the current value with a "rule" or "custom" badge. Steppers cover "Max height", "Street setback", "Secondary street setback" (where there is one), "Side setback" and "Rear setback"; sliders cover "Site coverage" and "Garden area". Where the typology sizes dwellings, "Dwelling width" and "Dwelling depth" also appear.

4. 4

   Set the site conditions

5. 5

   Force a storey count

6. 6

   Reset what you changed

7. 7

   Watch the badge