I hate polystyrene…

You’re welcome to copy the following clause into your own building contract:

Special Condition – Polystyrene Restriction

The use of polystyrene materials for construction or packaging on-site is generally prohibited. Exceptions may be made for items that arrive with polystyrene packaging. In such exceptional cases, the Builder is responsible for immediately collecting and containing all polystyrene, including any fragmented or loose particles, in a sealed container or bag designated specifically for polystyrene waste. This container must be situated away from other waste bins to prevent cross-contamination. The Builder must then arrange for the disposal of the contained polystyrene at a specified polystyrene recycling facility, such as Randwick Recycling Centre, which allows for the disposal of up to 3m³, or any other approved polystyrene recycling centres/companies.