Overview
Lift tiles, install engineered soil and planting, and route roof overflow into the new bed with an underdrain.
Medium€€Tiles to greenGreat for shared courtyards
Materials
- Shovel, pry bar
- Engineered soil (sand/compost mix)
- Geotextile (optional)
- Plant palette (shade/sun adapted)
- Underdrain to safe outlet
Tools
- Spade, wheelbarrow
- Level, string line
- Pruners, rake
Safety & Risks
- Maintain accessible paths and fire egress widths.
- Avoid burying utilities or inspection points.
Maintenance
- Weed monthly in first season.
- Top up mulch annually; adjust grading if settlement occurs.
Permits / Notes
- Check heritage/condo rules for visible courtyard changes.
Steps
- Map roof drains; identify safe overflow path.
- Lift tiles; decompact subgrade lightly.
- Install underdrain (if needed) and backfill with soil mix.
- Plant in zones; add mulch.
- Connect roof overflow to the bed via splash block or pipe.
- Water and monitor after first storm.