OneStation practical guide · 6 min read
How to Plan Backyard Drainage Before Landscaping
What Sydney homeowners should consider about levels and water movement before lawns, paving, decks and garden beds go in.
Updated 19 September 2026 · Sydney, AustraliaWhy drainage comes before finishes
Water needs a deliberate path away from buildings and through the landscape. Installing turf, paving or garden beds before understanding levels can hide a problem rather than solve it.
Look at the whole property
Observe where water enters, where it naturally collects, the relationship between neighbouring land and your block, existing pits or drains, and how proposed surfaces may change runoff.
Hard surfaces change water movement
Paving, paths and other less-permeable surfaces can change where water travels. Their falls, edges and connection to surrounding landscape should be considered as part of the drainage plan.
Do not bury future access
Drainage components may need inspection or maintenance. Avoid placing permanent features without understanding where existing services and access points are located.
When specialist advice matters
Persistent ponding, significant level changes or water affecting structures can require professional assessment. Site-specific drainage and stormwater work should follow the requirements that apply to the property.