To build a future-proof smart home, you need a robust physical backbone combining Cat6/Cat6A Ethernet cables, neutral wires at every light switch, and a centralised distribution hub.

While many devices use wireless systems like Wi-Fi, Zigbee, or Thread, it still pays to “hard-wire what stays put.” Wired connections deliver better speed, power delivery, and network stability.

Wireless devices are useful, but they can struggle with weak Wi-Fi, interference, flat batteries, and busy networks.

Planning your wiring early, especially during a new build or renovation, makes it easier to add smart lighting, cameras, intercoms, Wi-Fi access points, smart TVs, and future devices. Also, a licensed electrician must carry out all mains electrical work to meet Australian requirements.

Read on to learn which wiring choices matter most before you start.

Quick Answer: What Wiring Is Needed for a Smart Home?

A smart home works best when the wiring is planned before the walls are closed. The goal is to create a strong, reliable setup that can support today’s devices and future upgrades.

Ideally, your smart home wiring should include:

  • Neutral wires at light switches for smart switches and relays
  • Cat6 or Cat6a data cabling for reliable internet and networking
  • PoE cabling for cameras, Wi-Fi access points, intercoms, and touch panels
  • A central communications cabinet for network and automation equipment
  • Deep switch boxes for smart relays
  • Spare conduits for future cables
  • Optional coaxial cabling for free-to-air or satellite TV

Why Smart Home Wiring Matters

Smart home wiring matters because wireless devices still need a strong network. Wi-Fi is useful, but it can slow down, drop out, or struggle in larger homes. Wired connections are usually more stable, especially for devices that stay in one place.

Good structured cabling can help:

  • Reduce dropouts and delays.
  • Improve camera, TV, and intercom performance.
  • Support ceiling Wi-Fi access points.
  • Keep home offices more reliable.
  • Make future upgrades easier and cheaper.

Pre-wiring during a build or renovation also helps avoid messy retrofits later. In simple terms, good wiring gives your smart home a stronger foundation.

What Cables Should You Run for a Smart Home?

For most smart homes, you need a mix of power, data, and future-ready cabling.

The main options include Cat6 or Cat6a data cable for internet and network devices, electrical cabling with neutral wires at switches for smart lighting, and PoE-capable data cabling for cameras, intercoms, and Wi-Fi access points.

You might also consider installing RG6 coaxial cable for TV, along with spare conduit to allow adding extra cables later without opening walls.

1. Cat6 or Cat6a Data Cabling

Cat6 or Cat6a is one of the most important parts of smart home cabling. It’s fast and reliable for most homes.

Cat6a may be better for larger homes, heavy internet use, or extra future-proofing. Each cable should run back to a central hub or communications cabinet to keep your network more manageable.

Wired data points are useful anywhere you need stable internet, such as:

  • TV and entertainment areas
  • Home office
  • Ceiling Wi-Fi access points
  • Security camera locations
  • Front door or intercom location
  • Smart doorbell location
  • Garage
  • Network printers or study areas
  • Any room needing reliable internet

2. Power over Ethernet for Smart Devices

Power over Ethernet, or PoE, lets a cable carry both internet data and power. This is helpful when adding a normal power point would be hard, messy, or expensive. It also keeps the installation cleaner because fewer cables and plug packs are needed.

PoE is often used for devices, such as:

  • Security cameras
  • Wi-Fi access points
  • Video intercoms
  • Touch panels
  • Some smart home controllers

Because PoE devices are wired back to the network, they are often more reliable than Wi-Fi-only devices. This makes PoE a smart choice for fixed devices around the home.

3. Neutral Wires for Smart Switches and Lighting Control

Neutral wires are important because many smart switches and smart relays need constant power to work properly.

A neutral wire at the switch lets the device stay powered, even when the light is turned off. Without it, some smart switches may not work, or they may need extra parts or workarounds.

During a new build or renovation, it is best to install neutral wires at every switch location. This gives you more choice later and can support systems such as Shelly, Fibaro, Savant, or other smart lighting setups, depending on the design.

4. Deep Switch Boxes for Smart Relays

Deep switch boxes are useful because smart relays and modules can take up extra room behind the switch plate.

A standard wall box may be too tight once the wiring and smart module are added. This can make installation harder and future servicing more difficult.

Deep switch boxes help by giving more space for:

  • Smart relays and modules
  • Safer, neater wiring
  • Easier access for future repairs
  • System changes later on

For example, Shelly relay modules are often installed behind switches, so extra space can make the setup cleaner and easier to manage.

5. Wiring for Security Cameras, Alarm Systems, and Intercoms

Security, alarm, and intercom systems are much easier to install when the right cabling is planned early. These systems often need stable connections, especially if you want app control, recording, alerts, or smart home integration.

  • Security Cameras: Run Cat6 from the central hub to likely security camera locations, such as the front entry, driveway, sides of the home, rear yard, and garage. PoE cameras are often cleaner and more reliable than Wi-Fi cameras because one cable can carry both power and data.
  • Alarm Systems: Some alarm systems need data cabling back to the central hub or alarm panel. Network access may also be needed for app control, monitoring, alerts, or smart home integration.
  • Intercom and Access Control: Run Cat6 to the front gate or front door intercom location. Some intercoms can use PoE, while door strikes or access control systems may also need suitable power and control cabling.

6. Optional Coaxial Cable

Coaxial cable is not as important as it once was, but it can still be worth adding. Many modern homes now rely mostly on streaming services, smart TVs, and internet-based entertainment. Even so, RG6 Quad Shield cable may still be useful for:

  • Free-to-air TV
  • Satellite TV
  • Backup TV options
  • Some entertainment setups

If you are building or renovating, adding one coax run can be a simple and low-cost choice. It is usually much cheaper to install during construction than to retrofit later.

Think of it as a small backup option for future flexibility.

7. Spare Conduits for Future Upgrades

Spare conduits are one of the cheapest ways to future-proof a smart home. A conduit is an empty pathway that lets new cables be added later without opening walls or ceilings. This is especially useful during new builds, extensions, and major renovations.

Useful conduit runs include:

  • Communications cabinet to roof space
  • Communications cabinet to TV or entertainment area
  • Communications cabinet to front gate or intercom location
  • Communications cabinet to garage
  • Communications cabinet to outdoor entertaining areas

Technology changes quickly, so it makes sense to plan. It is usually much cheaper to allow for future cabling now than to retrofit later.

Where Should Smart Home Equipment Be Located?

Smart home equipment should be kept in one central communications cabinet or hub. This is where your main network and automation gear can be stored neatly.

It may include:

  • Router
  • NBN connection box
  • Network switch
  • Patch panel
  • Smart home controller or automation hub
  • Security or NVR equipment, if needed
  • Optional UPS backup

A “home-run” layout means each cable runs back to this central spot. This makes the system easier to manage, fix, and upgrade later.

Good locations include a garage, study, dedicated cupboard, or utility area with safe access and ventilation.

Does Smart Home Wiring Need to Meet Australian Standards?

Yes. Smart home wiring still needs to be safe and compliant. Any 240V electrical work must meet Australian electrical requirements, including the AS/NZS 3000 Wiring Rules. Mains electrical work must also be completed by a licensed electrician.

Good smart home planning should consider:

  • Safe installation of power wiring
  • Correct separation between data and electrical cables
  • Proper cable protection
  • Easy access for future servicing
  • Long-term system reliability

This is not just about ticking boxes. It helps protect your home, your devices, and the people using them. When in doubt, always speak with a licensed electrician.

Should You Pre-Wire During a New Build or Renovation?

Yes. Pre-wiring is usually easier and more cost-effective when walls and ceilings are open. New builds are the best time to plan smart home wiring, but renovations and extensions are also great opportunities.

Pre-wiring can help you:

  • Avoid surface conduit.
  • Reduce patching and repair work.
  • Make future upgrades easier.
  • Prepare for devices you may add later.

You do not need to install every smart device right away, but you can prepare the wiring now. If you are renovating, smart home wiring should be planned early to avoid costly rework.

See our guide to the most common electrical mistakes made during renovations before starting your project.

Can Existing Homes Be Upgraded for Smart Home Wiring?

Yes. Existing homes can still be upgraded for smart home wiring, even if it takes a little more planning. A licensed electrician may be able to run new cables through roof spaces, wall cavities, or underfloor areas. Where hidden cabling is not practical, surface conduit may be used.

In some areas, wireless smart devices may be the better choice, especially if running cable would be too costly or disruptive.

For many existing homes, the best setup is a mix of:

  • Wired connections for key devices
  • Wireless devices where cabling is harder
  • Future-ready upgrades where access allows

Why Hire a Licensed Electrician with Smart Home Experience?

Smart home wiring needs more planning than standard electrical work. A smart home electrician can help plan the right spots for:

  • Light switches
  • Data outlets
  • Wi-Fi access points
  • Security cameras
  • Intercoms
  • The communications cabinet

Experience with systems like Savant, Shelly, Fibaro, CCTV, alarms, and intercoms also helps avoid compatibility issues. A licensed electrician ensures that the electrical work is safe and compliant with Australian requirements.

Most importantly, a well-planned setup makes your home easier to upgrade later, so your smart home can grow with your needs.

Plan Your Smart Home Wiring Before You Start

A reliable smart home starts with good wiring. Before you build, renovate, or upgrade, plan for the key items that will make your system work better now and later.

This includes neutral wires at switches, Cat6 or Cat6a cabling, PoE devices, deep switch boxes, a central communications cabinet, and spare conduits where possible.

Good planning saves time, reduces messy upgrades, and makes your home easier to expand in the future. If you are building, renovating, or upgrading a home in Melbourne, speak with Canny Electrics about a smart home wiring plan.

Call us on 1300 522 446 or send an online enquiry.