Understanding the City of Cape Town Water By-Law for Home Sellers
If you are selling property in Cape Town, you are likely aware that our city has a unique relationship with water. Following the “Day Zero” crisis, the City of Cape Town intensified its regulations to protect this precious resource. Consequently, the Water Certificate of Compliance (COC) is not just a formality; it is a critical legal requirement for transferring ownership.
Unlike the Electrical COC, which is national, the Water COC is specific to the City of Cape Town. It operates under the Water By-law of 2010 (and its 2018 amendments). But what does this actually mean for you as a seller? Let’s decode the technical jargon.
What is the "Water By-Law"?
Simply put, the by-law ensures that your property’s plumbing is safe, does not waste water, and does not contaminate the municipal supply. Before a transfer can take place, a certified plumber must inspect your home and sign off on a specific checklist mandated by the City.
The Inspector’s Checklist: What We Look For
When a DP Inspections expert arrives at your property, we aren’t just looking for dripping taps. We follow a strict schedule set out by the municipality. Here are the five critical areas we check:
1. The Water Meter Test
First, we close all taps on the property and observe the water meter. It must stop registering completely. If the numbers continue to tick over, it indicates a concealed leak—perhaps underground or in a wall.
Why it matters: You cannot sell a house with an active leak. It wastes municipal water and inflates utility bills.
2. Stormwater vs. Sewerage
This is a common failure point in older Cape Town suburbs. Your stormwater (rainwater from gutters and paving) must not flow into the sewerage system.
The Rule: Stormwater must drain into the ground or a dedicated stormwater drain.
The Reason: During heavy Cape winter rains, stormwater entering the sewers can overwhelm the treatment plants, causing sewage spills.
3. Geyser Compliance
Your hot water cylinder is the heart of your plumbing system. We verify that it complies with SANS 10252 and SANS 10254 standards.
Critical Checks: We look for a properly installed Pressure Control Valve (PCV), a drip tray (for geysers inside the roof), and vacuum breakers.
The Overflow: The geyser’s overflow pipe must be metallic (usually copper) and must discharge safely to the outside atmosphere, not into the ceiling or a waste pipe.
4. Cross-Connections
If you have a greywater system, a borehole, or a well-point, it must be completely separate from the municipal drinking water supply.
The Danger: If these systems connect, contaminated water could siphon back into the clean municipal supply, posing a severe health risk to the community.
5. No Terminal Fittings Leaks
Finally, we check every tap, mixer, and toilet valve. They must be correctly fixed in position (no loose taps) and must not leak when turned off.
Common Misconception: "It works, so it’s compliant"
Many sellers assume that if their water runs and the toilet flushes, they are compliant. This is false.
Example: You might have a functioning DIY greywater system that waters your garden perfectly. However, if it physically connects to the main water supply without a reduced pressure zone (RPZ) backflow preventer, it is illegal and will cause your inspection to fail.
Get Compliant Before You List
Discovering a major plumbing issue usually happens at the worst possible time—right before the transfer deadline. We recommend booking your Water COC inspection as soon as you decide to sell.
At DP Inspections, we specialize in the City of Cape Town Water By-law. We identify issues quickly and provide clear, compliant solutions so your sale proceeds smoothly.
