Water Certificate of Compliance Cape Town
A Water Certificate of Compliance is a legal requirement for every property transfer within the City of Cape Town’s municipal boundaries. The City of Cape Town Water By-Law 2010, Section 14(1) requires a valid Water Certificate of Compliance before ownership can transfer — and unlike the electrical CoC, a new Water Certificate of Compliance must be issued for each transfer; previous certificates cannot be carried over. Inspecto has been issuing water compliance certificates across Cape Town since the by-law came into effect in 2011.
What Does a Water Compliance Inspection Cover?
The Water CoC is issued in terms of the City of Cape Town’s by-law — it is not a comprehensive plumbing certificate, but it covers the compliance items required for transfer:
- Hot water cylinder (geyser) installation — must comply with SANS 10252 and SANS 10254 (geysers installed before 2006 are exempt from the drip tray requirement)
- Water pipes — particularly those in the roof space, which must be correctly saddled per SANS 10252
- Water meter — must register flow when water is drawn, and not move when all taps are closed
- Private isolating valve — must be installed and functioning
- Terminal water fittings — taps, showers, basin mixers: no leaks and correctly fixed
- Storm water drainage — no storm water may discharge into the sewerage system
- No cross-connection between the potable water supply and any alternate supply such as rainwater harvesting or borehole
Important: The Water CoC is not a plumbing certificate. It does not cover waste water systems, blocked drains, or cosmetic damage to fixtures such as cracked basins or toilet pans. The inspection focuses on water wastage and compliance — a damaged fixture is only a concern if it is causing a leak or water loss.
Common Reasons Properties Fail a Water Inspection
Most failures on water compliance inspections fall into a handful of categories:
- Dripping taps and leaking mixers — even a slow drip is a failure; fix all tap washers before inspection
- Geyser valves (PRV and TP valve) — must be visible and accessible; if piped into a wall, duct, or drain, we make them accessible — which often reveals leaks that have been hidden for years
- Geyser drip tray — required if geyser was installed after 2006; must be correctly installed with a proper fall and adequate support, not just placed underneath
- No isolating valve or a seized valve — must be accessible and functional
- Water meter running when all taps are off — indicates a hidden leak somewhere in the installation
- Storm water downpipes draining into the sewer — common in older properties; can be a very expensive fix as storm water cannot be redirected uphill
- Alternative water supply cross-connection — rainwater harvesting or borehole supplies connected to the municipal supply require a RPZ valve, which is a costly installation. However, if the alternative supply is only feeding an irrigation system, disconnecting the cross-connection is often a far cheaper solution — the irrigation can still run independently, it just can’t be connected to the municipal supply.
Tip: If a cross-connection is only feeding an irrigation system, disconnecting it is often the cheapest solution. Book your water inspection early — before the property is marketed — and it can be disconnected before prospective buyers ever see it. Once a buyer has seen it as a feature, removing it becomes a more complicated conversation
Why Book Your Water Inspection Early?
A leaking geyser valve, a seized isolating valve, or storm water draining into the sewer can each delay your transfer while rectification work is arranged. Some of these fixes — particularly storm water rerouting — can be expensive and time-consuming. Booking your water compliance inspection well before your transfer date gives you time to weigh up options, arrange repairs without deadline pressure, and avoid last-minute costs. Inspecto covers all Cape Town suburbs — Northern Suburbs, Southern Suburbs, Atlantic Seaboard, Helderberg, and Winelands.
Why Choose Inspecto for Your Water Certificate of Compliance?
Inspecto has been issuing water compliance certificates in Cape Town since the by-law came into effect in 2011 — and has been in the compliance industry since 1995. Our inspectors know the by-law inside out. Estate agents and conveyancing attorneys across Cape Town trust us when a deadline matters.
Book Your Water Certificate of Compliance
To book your water compliance certificate inspection:
Fill in our online form
Call us on 021 551 4185
We cover the full Cape Town metro including the Northern Suburbs (Bellville, Durbanville, Brackenfell, Kraaifontein), Southern Suburbs (Claremont, Newlands, Constantia, Tokai, Muizenberg), Atlantic Seaboard (Sea Point, Green Point, Camps Bay, Hout Bay), Helderberg (Somerset West, Strand, Gordon’s Bay), and the Winelands (Stellenbosch, Paarl, Franschhoek).
Also need your Electrical, Gas, Beetle or Electric Fence CoC?
Inspecto issues all five compliance certificates required for property transfer.View all compliance inspections →
Also commonly required: Electrical CoC Cape Town | Gas CoC Cape Town
For more information on the City of Cape Town Water By-Law, visit the City of Cape Town’s official website.
Water Installation Certificate Training
The water installation certificate is required for every single property transfer in Cape Town — unlike the electrical COC, it cannot be reused. This training video explains exactly what the certificate covers, what it doesn’t, and the most common issues that catch sellers and agents off guard.
What This Video Covers
- What the water installation certificate actually covers — and the important difference from a full plumbing certificate
- Why a new certificate is required for every transfer (the buyer’s name goes on the certificate)
- The storm water to sewer issue — one of the most common and costly compliance failures
- Hot water cylinder requirements — drip trays, pressure control valves, and what changed in 2006
- How the water meter test works and what inspectors look for
- The RPZ valve — when it’s required, what it costs, and the cheaper alternative
- What waste water and sewage are NOT covered by the certificate
- Common disputes between buyers and sellers about what the certificate should cover
Key Points from the Training
The water certificate is not a plumbing certificate. This is the single biggest source of confusion. The water installation certificate covers compliance with the City of Cape Town Water By-law 2010 — it does not cover waste water, sewage, blocked drains, cracked toilet pans, leaking waste traps, or general plumbing defects. A full plumbing certificate (issued by a plumber under SANS 10252 and SANS 10254) covers far more. Inspecto inspects to the required standard only — not beyond it. Making sellers responsible for items outside the by-law scope adds costs and delays without legal justification.
A new water certificate is required for every single transfer. Unlike the electrical COC which can be used for up to 2 years, the water installation certificate cannot be transferred from one buyer to the next. The buyer’s name appears on the City of Cape Town’s certificate, and the City does conduct verification inspections. There is no shortcut here — every sale requires a fresh certificate.
Storm water discharging into the sewer is one of the most common failures — and one of the most misunderstood. The by-law specifically prohibits storm water (rainwater from roofs, paved areas, courtyards) from draining into the sewage system. In winter, properties with paved gardens or enclosed courtyards often route all surface water into the sewer, which overwhelms the City’s sewage works. Inspectors check for this during inspections. Rectifying it can range from simple (redirecting a downpipe) to expensive (breaking up paving to reroute drainage).
The RPZ valve is expensive — but there’s often a cheaper solution. A Reduced Pressure Zone (RPZ) valve is required when there is a cross-connection between the municipal water supply and an alternative supply (such as a borehole or rainwater tank). RPZ valves cost R8,000–R15,000 installed. However, if the alternative supply only feeds irrigation, simply disconnecting it from the municipal supply removes the cross-connection entirely — at a fraction of the cost. Get the inspection done early so the seller has time to explore options before transfer.
Frequently Asked Questions
Does the water certificate cover all the plumbing in the house?
No. The water installation certificate only covers compliance with the City of Cape Town Water By-law. It does not cover waste water, sewage, blocked drains, cracked fittings, or general plumbing defects. Those items fall under a full plumbing certificate, which is a separate document issued by a registered plumber.
Can the same water certificate be used for two transfers?
No. A new water installation certificate is required for every property transfer. The certificate bears the buyer’s name, and the City of Cape Town conducts verification inspections. It cannot be reused.
What is the storm water to sewer issue and how is it fixed?
If rainwater from the roof, paved areas, or courtyards drains into the sewage system instead of the stormwater system, this is non-compliant. The fix depends on the property — sometimes a downpipe just needs to be redirected, other times drainage channels need to be rerouted. It’s one of the most common compliance failures in Cape Town, particularly in older properties with enclosed courtyards.
Do geysers installed before 2006 need a drip tray?
No. Hot water cylinders installed before 2006 are exempt from the drip tray requirement under the water by-law. This is specifically stated on the City’s certificate. However, the geyser must still comply with SANS 10254 in all other respects — including a pressure control valve and vacuum breaker.
What is an RPZ valve and when is it required?
A Reduced Pressure Zone valve is required when a property has both a municipal water supply and an alternative supply (borehole, rainwater tank) that are connected to each other. The RPZ valve prevents contamination of the municipal supply. If the alternative supply only serves irrigation and can be disconnected, this is often the cheaper solution — discuss it with your inspector before committing to an RPZ installation.