Several adjoining properties, one shared entrance, one common approach road, and four owners who all want cameras. It looks like a straightforward job — one system instead of four, shared cost, better coverage than any single household could justify alone.
The cameras really are the easy part. What makes these projects difficult is everything around them, and almost none of it appears on a quotation.
The account below draws on a shared installation across four adjoining households in a Durban North estate, which ran from a first phone call in mid-2015 to a final follow-up eighteen months later. The households are not identified, and neither is the property.
One system, four clients
A shared system has one technical design and several decision-makers. That distinction sounds administrative. It is the single biggest determinant of how long the job takes.
Every choice that would take one homeowner a minute — where the recorder lives, which screen goes in, what happens to the footage — now needs four people to agree, and they will not all reply on the same day. In practice one resident tends to become the informal coordinator: the person who chases the others, drops equipment samples round in the evening so people can see the options, and relays the group’s decision back.
That role matters enormously and nobody quotes for it. If it does not emerge naturally, the installer ends up doing it, badly, by email.
Find out early who that person is. If nobody is willing to do it, the project needs a different structure — a body corporate decision, or four separate systems — before any cable is pulled.
Shared cameras, separate viewing
The useful distinction on these jobs is between what is genuinely common and what is not.
The cameras, the cabling and the recording are common infrastructure. They cover a shared approach, a shared entrance, shared boundaries. Everyone benefits and everyone contributes.
Viewing is not common. Each household wants its own screens, in its own rooms, and the choice of screen is personal. On the project this article draws on, that produced exactly the situation you would expect: the specification carried a modest screen size, one resident wanted something noticeably larger, and once one household upgraded the others had to decide for themselves. Some went larger, one preferred smaller units, and one already had suitable screens and reused them.
That is not indecision. It is four different houses with four different wall spaces and four different ideas about how visible a security screen should be.
The structure that works is to separate the shared infrastructure from the per-household fit-out, price them separately, and let each household settle its own difference directly. Trying to force one specification on four homes to keep the paperwork tidy creates an argument that has nothing to do with security.
Equal contributions, unequal coverage
One question decides more shared-CCTV arguments than any technical choice, and it usually gets asked a year late.
If everyone pays the same, is everyone equally covered?
On most shared schemes the answer is no, and for perfectly innocent reasons. Coverage follows the shared approach, the entrance and the common areas. Properties at the ends of rows, tucked behind a corner, or served by a side access tend to sit at the edge of what the cameras see. Nobody decided to leave them out. The camera positions were chosen to cover the common ground, and those units happen to be where the common ground stops.
The trouble is that the contribution does not taper. Everyone pays the same levy, so a resident at the end of a row is funding a system that covers their neighbour’s approach more thoroughly than their own. Once that is noticed — and it is always noticed eventually, usually by the person it affects — it stops being a technical conversation and becomes a fairness one. Those are much harder to resolve, because by then the grievance has had time to settle in.
Deal with it at design stage, where it is cheap:
- State plainly which properties are fully covered, partially covered and not covered. In writing, on the drawing, before anyone signs. Not covering somewhere is a legitimate decision; not saying so is not.
- If coverage cannot be equal, make the contribution or the remedy explicit. Either add the position, agree that the affected owner may add their own at the shared system’s expense or their own, or record that the group accepted the difference knowingly.
- Revisit it when anything changes. A new camera, a new fence, a hedge that has grown — coverage drifts, and it drifts away from the edges first.
The technical fix is usually straightforward and inexpensive: one more camera, or an adjusted angle. The governance failure is what costs, because by the time it surfaces the question is no longer where should the camera point but why was this never mentioned.
Fix the camera positions on site, before installation
On any CCTV job it is worth walking the property with the client and agreeing precisely where each camera goes before anything is mounted. On a shared system it is not optional.
A camera on a boundary between two properties is looking at one household’s garden as well as the shared approach. A camera at the entrance sees who arrives at all four homes. These are decisions with a neighbour’s privacy attached, and they should be made deliberately, together, standing in the actual position — not inferred from a plan by an installer working alone.
On the project described here, final placement was arranged as a distinct step with the client on site, weeks after the quotation and before installation began. It is a short meeting. It prevents the two worst outcomes on a shared job: a camera that overlooks something it should not, and a camera that has to be moved after the cable is in.
The cabling will take longer than you think
Worth saying plainly, because it is the most common way these projects slip.
On a single house, cable runs are short and the routes are usually obvious. Across four adjoining properties with agreed camera positions on shared boundaries, runs get long, and they cross ceilings, walls, roof spaces and outbuildings that belong to different households. Every run needs access to somebody’s property, on a day that suits them.
On the project this draws on, the cabling was underestimated — and the honest version, given to the clients in writing at the time, was that getting the cable to the agreed positions properly took longer than allowed. The alternative would have been shorter runs to easier positions, which is the same as saying different positions to the ones everyone had just agreed.
Two practical consequences:
- Quote the cabling on the agreed positions, not on a convenient estimate. Anything else is a variation waiting to happen.
- Plan access, not just cable. A run through three properties needs three people at home. That is a scheduling problem, not a technical one, and it is the one that actually costs the days.
Surge protection is not an upsell here
A shared system spans a larger physical footprint than any single house, with longer runs and more exposure. On the KwaZulu-Natal coast, with the summer storm season, that matters.
Lightning surge arrestors were included in the first quotation for this project, not added after installation. That record proves the exposure was considered at design stage; it does not prove that one device can protect every connected item from every lightning event. Earthing, bonding, cable entry, device coordination and replacement after a surge all need to form part of the design.
Handover is four handovers
The job is not finished when the system records. It is finished when every household can use it.
The clearest illustration from this project came months after completion, when one resident wrote to ask where the power plug for their screen was, because it would not turn on. Not a fault. Not a complaint. Simply a household that had been shown the system once, some time ago, and needed to know something basic.
On a shared system that will happen four times, because four households were each shown things at different moments, and the person who was present on the day may not be the person who needs it later.
Build it into the plan:
- Show each household its own viewing setup, not the coordinator on everyone’s behalf.
- Leave something written — what the screen is, where its power comes from, who to call.
- Assume the request will come months later, and that it will be simple.
The short version
A shared CCTV system is not four installations added together, and it is not one installation with a bigger cable schedule. It is one piece of common infrastructure with four separate relationships attached to it.
Get the coordinator identified, separate the shared parts from the personal ones, agree the camera positions on site with everyone present, quote the cabling honestly against those positions, and hand over four times.
Do that and it is a genuinely better system than any of those households could have justified alone — which is the whole reason to share one.
Based on a shared installation across four adjoining households in a Durban North estate, 2015–2016. The property and residents are not identified. Conclusions are drawn from experience on this and comparable projects, and any specific site should be assessed on its own terms.