Perth shire stormwater rules, simplified
Soakwell requirements vary by council. We know the rules in every Perth shire — and we'll make sure your install is compliant from day one.
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Why shire compliance matters
Western Australian home owners must contain stormwater within their property boundary. Beyond that legal baseline, individual shires set their own requirements — soakwell sizing per square metre of roof, depth, location relative to boundaries, and inspection or sign-off requirements. Getting this wrong can mean a non-compliance notice, a halt on your build, or being forced to dig the soakwell back up.
Below are direct links to the Perth-area councils we work in most often. If you're unsure, call us on 0411 201 492 — we'll point you to the right document and quote a compliant install.
Perth shire council links
Council websites and policies change — confirm current requirements on the council site or call us for guidance.
General Perth soakwell sizing rule
As a starting guide, each 130 L soakwell can service approximately 10 m² of impermeable area in Perth's typical sandy soils. Heavier clay soils, larger roofs and shire-specific multipliers can change this significantly. We always size each job individually.
Related services & soakwell options
Jump to the other parts of our work that pair naturally with this page — handy if you're scoping a job or comparing options.
Services
Soakwells
- Home Owners
Protect paving, foundations and gardens from stormwater damage.
- Builders
Reliable trade pricing, BCA-compliant soakwells, on-time site delivery.
- PVC Enviromodule
Lightweight modular PVC soakwells for tight access and large volumes.
- Ausdrain EnviroModule
High-capacity recycled modular drainage cells.
Not sure what your shire requires?
Call us — 14 years of compliant Perth installations means we've seen every council.