Garden SurveyorGarden Designer (Whole-Garden Setting Out)
Model the whole garden — draw every area, take levels and falls across the plot, and get garden-wide squaring, cut & fill and muck-away. Add extra areas for paths, lawns and beds.
Add return joins a small shape onto this polygon · Add path + area creates a linked pad · Add isolated area creates a separate editable patio part · tap an area button or shape to edit it.
Drainage strip against the house
Suggested: splash strip at ~150 mm deep. Generous DPC clearance and free-draining ground — a decorative splash strip is enough.
≈ 0.41 m³ gravel · 4.4 m² membrane over 5.00 m of wall.
✓ Paving sits 150 mm below the DPC — meets the 150 mm Part C clearance.
Cross-section — updates live with your settings
Where the water goes
Size a soakaway for this run3 advanced inputs hidden. Switch to Advanced to fine-tune.
- Unit & pattern
- Porcelain paving — 600 × 600 mm slabs, Stretcher bond
- Area
- 15m²
- Run length
- 5m
- Run width
- 3m
- Squaring check (3-4-5)
- 3–4–5 m (3-4-5)
- Diagonal (equal = square)
- 5.83m
- Full units along length
- 7
- Balanced cut (length ends)
- 365mm
- Full units along width
- 3
- Balanced cut (width ends)
- 585mm
- Fall gradient
- 1:80
- Total fall drop
- 38mm
- Peg & string levels
- Datum (house) 150mm · Peg 1 163mm · Peg 2 175mm · Drain edge 188mm
This app provides general UK guidance and material estimates only. It is not legal, planning, engineering or building-control advice. Always confirm requirements with your local planning authority, building control, utility providers, manufacturers or qualified professionals.