Artificial grass works very well for dogs, and it fails badly for dogs, and the difference is almost entirely down to what goes under the turf rather than the turf itself. The single thing that decides whether a pet lawn smells in year two is drainage through the base — not the grass grade, not the deodoriser you buy afterwards.
Cape Town adds its own wrinkles: long dry summers where nothing rinses the lawn for months, then heavy winter rain, plus sandy Cape Flats soils in some suburbs and heavy clay in others. Here is how we build turf that survives dogs, and what to insist on when comparing quotes.
Why pet lawns smell — the actual mechanism
Dog urine is mostly water carrying urea. On a properly built pet lawn, that liquid passes straight through the perforated turf backing, through the infill, through a free-draining stone base, and away. What remains on the fibres rinses off with a hose.
Smell develops when the liquid stops somewhere. The usual culprits:
- Compacted or clay-rich base. Turf laid on levelled clay or on builder’s rubble with fines in it holds liquid like a sponge. This is the number one cause.
- Organic infill. Anything organic under or in the turf will rot. Silica sand and specialist antimicrobial infills will not.
- A geotextile that clogs. A weed membrane is useful under the stone; a fine non-permeable membrane directly under the turf is a bath mat.
- Solid backing turf. Cheap rolls sometimes have limited perforation. Check the drainage rate the supplier quotes.
- Never being rinsed. In a Cape Town summer, six months can pass without rain. Solids need picking up daily and the lawn needs an occasional hose down. That is not optional.
How we build a pet-specific base
The pet build differs from a standard lawn build in a few specific ways:
- Excavate properly. Deeper than a decorative lawn, because you need real depth of free-draining material below the turf.
- Free-draining stone base, not crusher run with fines. Standard lawn bases are compacted for stability, which reduces permeability. For pets we favour a clean, angular open-graded stone that stays porous.
- A permeable geotextile between soil and stone. Stops the base sinking into the subgrade and stops soil fines migrating up and blinding it.
- Thin, sharp laying course. Enough to screed the surface true, not so much that it forms a sealing layer.
- Drainage exit. On clay soils around Durbanville and Brackenfell, the stone base needs somewhere to discharge — a perforated pipe run to a garden bed or stormwater, or a soakaway. Standalone soakaways run R8 000 – R25 000 installed depending on size and depth, as covered in our driveway drainage guide. On Cape Flats sand you can usually let the base soak away naturally.
- Antimicrobial infill. Kiln-dried silica or a zeolite-based infill. Zeolite traps ammonia and releases it when rinsed, which genuinely helps in dry months.
Choosing the grass itself
| Feature | What to ask for | Why it matters for dogs |
|---|---|---|
| Pile height | 25–35mm | Long pile flattens under paws and traps solids; short dense pile cleans easily |
| Backing | Fully perforated, high drainage rate | Liquid must exit fast; this is the whole game |
| Density | High stitch count | Dense turf resists the wear patterns dogs create on their running lines |
| Fibre | UV-stabilised polyethylene | Softer on paws than nylon and holds up to Cape summer sun |
| Thatch layer | Curled thatch, not excessive | Helps the pile stand but heavy thatch holds debris |
You do not need the tallest, most luxurious-looking product. A 30mm dense pet-grade turf outperforms a 40mm show lawn for a household with two dogs, every time. Grass alone spans roughly R89 – R420 per m² across grades, and a professional all-in install runs R350 – R650 per m² — the detail is in our artificial grass prices guide. For a pet lawn we would rather see the budget go into base depth and infill than into an extra 5mm of pile.
Digging, chewing and the perimeter
Dogs that dig go for edges, because that is the only place they can get purchase. So the perimeter detail matters more on a pet lawn than anywhere else:
- Bond or fix the edge continuously, not at intervals. A gap is an invitation.
- Use a hard edge where possible — a flush paved soldier course or steel edging gives a dog nothing to hook a claw under and looks better than a raw turf edge.
- Bury the perimeter turf tail behind the edging rather than leaving it exposed.
- Watch shaded, damp corners where a determined digger works undisturbed.
Chewing is rarer and usually a puppy phase. Turf fibres are not digestible, so a chewer needs supervising until the habit passes.
Heat, and the thing nobody mentions
Artificial turf in full Cape summer sun gets considerably hotter than living lawn. On a hot February afternoon a dark, dense turf in an unshaded north-facing yard can be uncomfortable on paws. Practical mitigations: keep or create shade over part of the area, choose a lighter-toned turf rather than deep emerald, and hose the surface down before letting dogs out in peak heat — it cools within a minute or two. If your yard has no shade at all, plan for some, whether that is a tree, a sail or a pergola. Our landscaping team usually designs shade in as part of the same project.
Coastal and clay: two different jobs
Where you live changes the build. In Blouberg, Table View, Milnerton and Big Bay the soil is sandy and drains beautifully, so the base rarely needs a piped exit — but the south-easter is relentless, and a pet lawn there needs an unusually well-bonded perimeter because wind getting under an edge and a dog working at that edge are the same failure. Salt air does not damage quality UV-stabilised polyethylene fibres, but it does age cheap adhesives, so we specify exterior-grade product on coastal jobs.
Inland, in Durbanville, Brackenfell and parts of the Northern Suburbs, the clay is the issue. Clay does not accept water quickly, so a stone base sitting on it becomes a reservoir every winter and stays damp long enough to smell. On those properties the base must discharge somewhere — a perforated pipe to a bed, a channel, or a soakaway. It adds cost, and any installer who does not raise it on a clay site has not thought about the second winter.
Slope-heavy suburbs like Plattekloof and Hout Bay are usually the easiest of the three for drainage and the hardest for base stability: the fall does the draining for you, but the base has to be built to stay put.
Keeping it clean, realistically
- Pick up solids daily. Non-negotiable. Solids left to break down are what forces the deep cleans nobody wants to do.
- Rinse weekly-ish in dry months. A short hose down of the areas your dog uses. Cape Town water restrictions make this a light rinse, not a soaking — and a light rinse is enough if the base drains.
- Enzyme cleaner monthly on hotspots. Enzyme-based turf cleaners break down the residue that causes odour. Do not use bleach or strong solvents on turf backing.
- Brush against the grain every month or two to lift the pile on running lines.
- Clear leaves promptly. Organic debris rotting in the pile causes as much smell as the dog does.
Is it the right call?
For a household with dogs and a lawn that is permanently patchy, muddy in winter and dusty in summer, artificial turf is often the honest answer — there is no realistic amount of watering that gives you a decent lawn with two large dogs on it. For a big garden with shade and light use, real lawn may still be the better buy; we run the ten-year numbers in artificial grass versus a real lawn.
If you want a pet-specific spec quoted properly — base depth, drainage exit, infill and edge detail written into the quote, so you can compare it against others — talk to our artificial lawn installation team or contact us. We work right across the city, including the Northern Suburbs where clay soils make the drainage design the whole job.
Quick answers
Does pet-friendly artificial grass smell?
Not if the base drains freely and solids are picked up daily. Odour comes from liquid sitting in a compacted or clay base, or from organic debris rotting in the pile — not from the grass fibres themselves.
What infill is best for a dog lawn?
Kiln-dried silica sand or a zeolite-based antimicrobial infill. Zeolite traps ammonia and releases it when the lawn is rinsed, which is particularly useful through Cape Town’s long dry summers.
Will my dog dig up artificial grass?
Only at the edges, which is why the perimeter must be continuously fixed and ideally finished against a hard edge such as a flush paved soldier course or steel edging. There is nothing to grip in the middle of a properly laid field.