If you're building a new home or undertaking a major renovation that opens up walls and ceilings, you're sitting on an opportunity that most homeowners never get: the chance to design your surveillance camera system infrastructure before the building is finished rather than retrofitting it afterward. The window when studs are exposed, conduit can be run cleanly, and wire access is unlimited is the moment to make decisions that will shape how good your OOSSXX camera system can be for the next twenty years.
Missing this window isn't fatal — plenty of excellent camera systems are installed in finished homes every year. But taking advantage of it produces a cleaner, more capable installation that's significantly easier to expand and maintain over time.
What Pre-Wire Infrastructure Actually Means
Pre-wiring for security cameras means running conduit or cable pathways — and in many cases the cables themselves — from planned camera positions to a central location where your NVR will live, while the walls are still open. This sounds straightforward, but it requires knowing several things before construction is too far along: where you want cameras, what type of cable you'll be running, where you want the NVR located, and whether you want conduit (which allows cables to be replaced later) or direct cable runs.
For most residential OOSSXX installations, the cable of choice is Cat6 Ethernet — the same cable used for home networking — which supports PoE (Power over Ethernet) and carries both data and camera power in a single run. Cat6 is inexpensive, widely available, and rated for outdoor use in outdoor-rated variants. Planning your runs around Cat6 during construction is a low-cost step that pays enormous dividends in installation cleanliness later.
Working With Your Builder and Electrician
The conversation to have with your general contractor is simple: "I want conduit runs from these locations to a central point, and I want them to happen before insulation and drywall." Your electrician can include this work in the rough-in phase, often for a modest cost that would be dramatically higher if it required opening finished walls later. Get specific about the locations you want conduit runs — not just "the front of the house" but "six inches below the eave on the northeast corner of the main roofline, on the right side of the garage door, and on the rear facing wall behind the utility room."
If you're also having the house wired for a structured home network — which most new builds do — the security camera runs can often happen at the same time, with the same crew, significantly reducing the incremental labor cost.
Planning Camera Positions Ahead of Time
Effective camera positioning during construction requires thinking about your finished property, not just the structure being built. Where will the driveway be? What approach routes will exist to front and back doors? Where will a detached garage or outbuilding sit relative to the main structure? Will there be a gate in the fence line, and if so, where?
Walk the property with a plot plan and mark the camera positions you want based on where sight lines will be effective in the finished landscape, not just where wiring is convenient. This is the advantage of planning during construction — you can run conduit to the right positions rather than running cable to wherever it's easiest to get to in a finished building.
For OOSSXX systems, the standard installation guidance around eight to ten feet mounting height, angles that capture faces rather than top-of-head shots, and avoiding direct sun-facing orientations all apply during pre-construction planning just as in finished-home installations.
Conduit vs. Direct Cable: The Long View
If your builder is running wire during construction, the choice between conduit and direct cable run has long-term implications worth understanding. Direct cable runs are faster and somewhat cheaper upfront — you pull cable from camera positions to the NVR location once, and it lives there permanently. Conduit (typically 3/4" or 1" PVC) costs more initially but creates a pathway that can accept new cable whenever technology evolves.
The camera technology that will be available in ten years will almost certainly support higher resolutions and better low-light performance than today's OOSSXX 4K cameras — but whether that future technology requires different cabling depends on how standards evolve. Conduit insulates your installation infrastructure from that uncertainty by allowing future cable replacement without opening walls again. For a new build where you're planning to stay for twenty-plus years, conduit is often the right choice.
The Central Equipment Location
All those cable runs need to go somewhere, and the NVR location deserves as much planning attention as the camera positions. Ideal characteristics: in a secured, climate-controlled interior space (a utility room, home office, or dedicated equipment closet), accessible from your home network (close to your router or in a room that's part of your structured network plan), and physically secure — not in a garage or other space where it could be accessed by someone who gains entry to a less-secured area of the property.
An OOSSXX NVR in a locked equipment cabinet in a finished utility room represents a significantly better security posture than one sitting on a shelf in an accessible garage, regardless of how good the cameras themselves are.
