Pre-Wiring a Smart Home: A Room-by-Room Guide for Builds and Renovations

Ask anyone who has lived in a new build for a year what they would change, and the answer is rarely a device. It is a cable. The TV that ended up on the wrong wall. The office with weak Wi-Fi. The shade that needs a cord running down the window frame because nobody thought about power there. Devices are easy to swap. What sits inside the walls is not.

This guide walks through a typical home room by room, looking at the few decisions in each space that are cheap during construction and painful afterward. It is not a shopping list. The point is to give the house a good skeleton, so the smart home you add later has something solid to build on.

One Rule for the Whole House

Before touring the rooms, it helps to sort every idea into one of three buckets:

Almost every pre-wire mistake comes from putting something in the wrong bucket. Running a cable to every window sensor is wasted money. Trusting Wi-Fi to reach a camera at the far end of a detached garage is wasted weekends.

Entry and Front Door

The front door is where a home makes its first impression, and where the most hardware tends to crowd together: a doorbell, a lock, a porch light, maybe a camera covering the walkway.

Give the doorbell location real power and, if your contractor agrees, a network cable behind it. Smart locks are usually battery powered, so what matters is the door prep, not wiring. Near the door, a multi-gang box for a scene keypad lets you have one button that says “we’re leaving” and handles lights, locks, and climate together. If that box is going to hold smart switches, ask your electrician to bring a neutral to it, since many need one.

Kitchen

Kitchens are full of light layers: overhead, pendants, under-cabinet strips, toe kicks. The low-voltage strips need drivers, and the most common regret is a driver sealed behind a cabinet panel with no way to replace it. Agree on an accessible spot for each one before cabinets go in.

A small keypad near the main counter is worth considering too. Hands covered in flour are a good argument for a “cooking” scene that brightens the work surfaces with one tap, and the regular switches should still work for anyone who never touches it. If you want a leak sensor under the sink and dishwasher, that is wireless and can wait. The water leak alert only needs a sensor on the floor.

Living Room and Media Wall

Media walls change more than any other wall in the house. TVs get bigger, speakers move, consoles come and go. Run Ethernet to the TV location, then add a generous conduit between the TV and wherever the equipment will sit. That one pipe is what lets you change your mind in five years without opening the wall.

Large windows here often end up with motorized shades. Shade motors need approved power or control wiring at the head of each window and a way to reach the motor for service. With that in place, routines like closing shades by sun and heat become possible later, without any visible cords.

Ceilings are the other thing to settle now. Decide where the access point, presence sensor, and smoke detector go, and make sure none of them blocks the others’ view or coverage.

Bedrooms

Bedrooms reward restraint. A bedside control that turns off the whole house is the one people use every night, so consider a box at each side of the bed for a keypad or smart switch. Blackout shades are the other bedroom upgrade worth planning power for.

Bedrooms do not usually need a camera or a wired sensor. Keep the walls quiet and the technology invisible.

Bathrooms

The most useful bathroom automation is the least glamorous: an exhaust fan that runs when humidity rises and stops when it falls. Talk to your electrician about a fan and control that can do this. If you are adding heated floors or towel warmers, plan where their controls will live so they can be scheduled rather than left on all day.

Home Office

If someone works from home, run Ethernet to the desk, even if the laptop is wireless today. Video calls are the first thing to suffer on a congested network, and a cable removes the question entirely. A ceiling access point in or near the office is the other half of the fix.

Garage, Laundry, and Utility Spaces

These are the rooms where things quietly go wrong. A freezer that loses power, a water heater that starts to leak, a washer hose that bursts while you are away. Leak sensors near the washer and water heater are wireless and can be added any time. What needs planning now:

• Power and network for a garage door controller and a camera if you want one.
• Conduit to any detached building, sized for both power and network. Wireless rarely survives the trip through walls, distance, and metal siding.

Also think about how an alert gets out if the power or internet in that building goes down. An alarm that nobody receives is not much of an alarm.

Where the Water Comes In

Plumbing rarely comes up in a smart home conversation, and it should. A leak sensor on its own can only tell you there is water on the floor. A motorized shutoff valve on the main line is what lets the house actually stop it, so a leak auto-shutoff closes the water within seconds instead of after you get home.

The catch is that a smart valve is a powered device sitting on a pipe, often in a basement corner or crawl space with no outlet anywhere near it. That is exactly the kind of thing that is trivial during construction and awkward after. Two ways to solve it:

• A dedicated outlet next to the valve, placed where a leak will not reach it.
• Power over Ethernet (PoE). A single network cable from the equipment closet can carry both power and data to the valve controller, either directly or through a PoE splitter, depending on the valve. Power then comes from the network switch, so the valve stays on the same battery backup as the rest of your system, and the controller gets a wired connection instead of fighting for a wireless signal through concrete.

Either way, ask your plumber to install the valve where it can be reached and serviced, with a manual handle that still works if the motor ever fails. Pick the valve with your plumber and installer together, so its control and power requirements are on the plans before the pipes are buried.

Outside

Cameras look best and work best at the eaves, wired from inside the attic. Choose the locations now: driveway, entries, side yards, the back door. Do the same for landscape lighting transformers and any irrigation controller, which needs power somewhere sheltered and easy to reach.

The Equipment Closet

Every cable you just planned has to end somewhere. Pick a single location for the router, switches, patch panel, and your Selora Hub , and treat it as a real room rather than leftover space. It needs airflow, a steady temperature, a dedicated circuit, room for battery backup, and space for whatever you add in five years.

Avoid the classic spots: a sealed closet under the stairs, a corner of the attic that bakes in summer, or a basement shelf right below the water heater.

When to Have Each Conversation

Pre-wiring is less about knowing everything and more about talking to the right trade at the right moment.

During design, share your room-by-room wishes with your architect or builder, so box locations, conduit, and the equipment closet appear on the plans. This is also the best moment to bring in a smart home installer. A Selora installer can turn a list of daily routines into a wiring plan before the framing starts.

At rough-in, walk each room with the electrician and the low-voltage contractor. Stand where the switches will be. Open the doors. Check that the keypad by the bed is not hidden behind the nightstand you already own.

Right before insulation, photograph every wall and ceiling with a tape measure in the frame, and store the photos somewhere outside the house. Ask for network cables to be tested and labeled, and pull a little on every conduit string to make sure it moves. This is the last time those cables are visible.

At handoff, collect the photos, the cable labels, the panel schedule, and the test results in one place. Whoever installs your smart home, now or in ten years, will thank you.

The Walls Are the Long-Term Part

Switches, sensors, and screens will change several times over the life of a house. The cables, the conduit, and the equipment closet are what stay. Put your effort there, keep ordinary switches working everywhere, and leave the device decisions for when you are living in the rooms and know what the household actually needs.