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Which electrical upgrades most often surprise buyers with their cost?

Frequently surprising upgrades include pendant light provisions, kitchen island power, USB outlets, extra downlights, ceiling fan wiring, outdoor power, data points and smart switches. These are often assumed to be standard or inexpensive, but each carries its own installation requirements that affect pricing.

Why is kitchen island power more expensive than a normal power point?

Running power to a freestanding kitchen island typically requires conduit through the floor or slab trenching, because the island is not against a wall. This is more complex and time-consuming than a standard wall-mounted outlet, which is reflected in the price.

Is ceiling fan wiring included as standard?

In most cases, no. Wiring for a ceiling fan — even if you plan to install the fan yourself later — is typically an upgrade. Adding the wiring during the build is far cheaper than retrofitting it after handover, when ceiling access may be limited.

Are data points included in the standard electrical allowance?

Usually not. Ethernet and network cabling are generally over and above the base electrical allowance. If you plan to use wired internet, smart home devices or a home office, planning data points during the build is advisable.

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Lighting, Electrical & Power

Electrical Upgrades That Often Surprise Buyers

The upgrades that commonly push the electrical budget higher than expected — and why each one tends to cost more than buyers assume.

6 min read·Compare My Build — Independent Resource· Updated July 2026

Cost estimates only: Any building or upgrade figures in this guide are indicative, not fixed prices or quotes. Costs and inclusions vary by project, supplier, location and time. Confirm current written prices and specifications directly with your builder, suppliers and relevant trades.

Key Takeaways

Several electrical upgrades commonly surprise buyers because they're assumed to be standard or inexpensive.
Pendant provisions, kitchen island power and ceiling fan wiring are rarely included as standard.
Data points, USB outlets and smart switches are usually over and above the base allowance.
Each upgrade carries its own installation requirements that affect pricing.
Understanding these in advance helps you budget and avoid surprises at the appointment.

Why These Upgrades Catch Buyers Out

Many buyers arrive at the electrical appointment assuming that certain features — a pendant over the kitchen island, power to the island bench, ceiling fan wiring, data points — are either standard or relatively inexpensive. In practice, these items are frequently upgrades, and their pricing reflects the complexity of the installation. Knowing which upgrades tend to surprise buyers helps you budget realistically and prioritise effectively.

Upgrades That Commonly Surprise Buyers

Upgrade	Why It Surprises
Pendant light provisions	Wiring and support for a feature fitting over a kitchen island or dining table is rarely standard
Kitchen island power	Running power to a freestanding island requires floor conduit — more complex than a wall outlet
USB outlets	Integrated USB charging points cost noticeably more than standard power points
Extra downlights	Standard allocations are often minimal; upgrading a whole home adds up per fitting
Ceiling fan wiring	Wiring for a fan — even without the fan itself — is frequently an upgrade
Outdoor power	Weatherproof outlets in alfresco and garden areas are rarely included as standard
Data points	Ethernet and network cabling are usually over and above the base electrical allowance
Smart switches	Smart or automated switching requires compatible wiring and often a hub

Pendant Light Provisions

A pendant light over a kitchen island or dining table is a feature most buyers want, but the provision — the wiring, support and ceiling rose required for a feature fitting — is rarely standard. Because the fitting is ceiling-mounted and may require additional support, the provision is a more substantial line item than a standard light point.

Kitchen Island Power

Running power to a freestanding kitchen island requires conduit through the floor or slab trenching, because the island isn't against a wall. This is significantly more complex than a wall-mounted outlet and is typically an upgrade. It's worth planning if you intend to use the island for appliances or charging.

USB Outlets

Power points with integrated USB charging are convenient but cost noticeably more than standard double outlets. Whether the premium is worthwhile depends on how you plan to use the outlet. Some buyers choose USB outlets in key charging locations (bedside, study, kitchen) rather than throughout the home.

Extra Downlights and Ceiling Fan Wiring

Standard lighting allocations are often minimal, and upgrading to downlights across a whole home adds up per fitting. Ceiling fan wiring — even without the fan itself — is frequently an upgrade. Adding the wiring during the build is far cheaper than retrofitting later, when ceiling access may be limited.

Outdoor Power, Data Points and Smart Switches

Weatherproof outdoor outlets, Ethernet data points and smart or automated switching are all usually over and above the base electrical allowance. Data points are particularly relevant for home offices and smart home setups. Smart switches require compatible wiring and sometimes a central hub, adding to the cost.

Watch Out

These upgrades are not hidden fees — they are legitimate items with real installation requirements. But because they're frequently assumed to be standard, they can push the electrical budget higher than expected. The best approach is to ask for a full upgrade price schedule before the appointment and prioritise accordingly.

Best Value Electrical Upgrades

Not sure which upgrades are worth it? This guide ranks value, not opinion.

Read the Guide

Frequently Asked Questions

All information is independently compiled as a general guide. Costs and inclusions vary between builders, regions and specifications. Always confirm details with your builder.