Commercial Tenancy Electrical Guide for NSW

A retail shop can look ready to open while the electrical work is still holding it back. Missing power points, an overloaded switchboard, poorly placed lighting or incomplete compliance paperwork can delay your handover, disrupt other trades and create expensive rework. This commercial tenancy electrical guide covers the practical decisions that need to be made before a fit-out begins.

For business owners, landlords, builders and project managers, the aim is simple: get a safe, compliant installation that suits how the tenancy will actually operate. That means looking beyond a basic lighting and power layout and planning for equipment loads, staff workflows, customer areas, future changes and the condition of the existing supply.

Start with the tenancy, not the electrical quote

The electrical scope should be based on the way the business will use the space. A small office, café, salon, medical room, workshop and retail store can occupy similar-sized tenancies but have very different power, lighting and compliance requirements.

Before pricing work, confirm the lease plan, landlord requirements, fit-out drawings and the proposed opening date. It is far cheaper to identify a supply issue before walls are lined, ceilings are closed and joinery is installed.

Check what is already in place

Do not assume an existing tenancy electrical installation is suitable just because the lights turn on. The previous occupant may have had lower power demands, different equipment or temporary alterations that do not suit your fit-out.

An electrician should assess the switchboard, metering arrangement, main supply capacity, earthing, existing circuits and visible condition of the installation. Older boards may need upgrades, additional protection devices or a complete reconfiguration to support new loads safely.

In multi-tenancy buildings, also establish where the electrical responsibility changes from landlord to tenant. The base building supply, common areas, air conditioning plant and shopfront signage may sit under different arrangements. Clarifying this early avoids arguments over scope and cost later.

Map the way people will use the space

A practical layout is about more than meeting a minimum number of outlets. Think about where staff will plug in equipment, how customers move through the tenancy and where cleaning or maintenance equipment will be used.

Power should be positioned around fixed joinery, counters, workstations, display areas, kitchen equipment and reception points. Allow for mobile charging, EFTPOS terminals, printers, screens, appliances and cleaning equipment without relying on extension leads. Extension leads across walkways are not a long-term solution in a working commercial space.

Plan electrical capacity before selecting equipment

Power demand is one of the most common tenancy fit-out issues. A few extra appliances can quickly exceed the capacity of an existing circuit or switchboard, particularly in food, beauty, health and workshop settings.

List every significant load

Create an equipment schedule before construction starts. Include air conditioning, hot water, refrigeration, ovens, coffee machines, cooktops, pumps, exhaust systems, servers, specialised equipment and external signage. Check each item’s voltage, phase requirement and rated load rather than estimating from its size.

A café, for example, may need dedicated circuits for refrigeration, dishwashing, coffee equipment and cooking appliances. A salon may need power distributed across multiple workstations, laundry equipment and hot water. An office may appear straightforward but can still require allowance for server equipment, meeting-room screens and future desk positions.

The right solution depends on the load calculation and available supply. Sometimes a new circuit is enough. In other cases, the tenancy needs a switchboard upgrade, three-phase supply work or coordination with the building owner and electricity distributor.

Leave room for the next change

Commercial spaces rarely stay exactly the same. A business may add staff, change equipment, reconfigure a counter or take on a neighbouring tenancy. Building a little capacity into the switchboard and cable routes can reduce disruption when that happens.

Future-proofing does not mean overspending on every possible upgrade. It means making sensible allowances where access will be difficult later, such as installing spare ways in a board, running suitable conduits to likely expansion areas or providing capacity for planned equipment.

Lighting should support the work, not just fill the room

Good commercial lighting makes a space easier and safer to use. It influences customer experience, staff comfort, product presentation and the ability to complete detailed tasks.

Match lighting to the activity

Retail lighting may need to highlight displays and merchandise without creating harsh glare. Offices need even light across desks and screens. Treatment rooms and workshops require task lighting where accuracy matters. Back-of-house areas, storerooms and amenities should not be treated as an afterthought, as poor lighting in these spaces affects safety and daily operations.

LED fittings are typically a practical choice because they are efficient and low maintenance, but fitting selection and placement still matter. The cheapest fitting can be a false economy if it produces poor colour quality, inadequate coverage or difficult-to-source replacement components.

Consider switching zones as well. Separating display lighting, staff areas, storage, external lighting and feature lighting gives the business more control and can reduce unnecessary energy use.

Do not overlook emergency lighting

Emergency and exit lighting is a critical part of many commercial fit-outs. The required arrangement depends on the building, tenancy use, travel paths and existing essential services. It needs to be coordinated with the overall fit-out rather than added at the final inspection stage.

If the tenancy sits within a larger building, confirm whether emergency lighting is connected to a central system or whether standalone fittings are required. Existing systems may require testing, modifications or specialist coordination. Getting this wrong can delay occupation approval.

Coordinate electrical work with every trade

Commercial fit-outs move quickly, and electrical work touches nearly every stage. Rough-in needs to happen before plastering and ceilings. Underground service runs need to be installed before landscaping, concrete or external paving. Final fit-off needs completed joinery, paint and equipment locations.

Sequence the site works properly

A clear electrical plan allows the builder, plumber, air conditioning contractor, cabinetmaker and data contractor to work without clashing. Ceiling space is often limited, especially where ductwork, fire services and cable pathways compete for room.

For sites needing new underground power, external lighting, car park supply or services to detached structures, trenching and excavation need to be planned around existing utilities, access and finished levels. Coordinating electrical and excavation work under one contractor can remove a common handover point between trades and keep the job moving.

Protect the finished fit-out

Once floors, joinery and wall finishes are complete, even a small electrical change can become costly. Confirm outlet heights, switch locations, light positions, signage feeds and data points with the business owner before final installation.

It also pays to allow for access to switchboards, isolators and equipment. A switchboard hidden behind fixed shelving or a ceiling-mounted unit with no service access creates a maintenance problem that will remain long after the fit-out team has left site.

Compliance is part of the job, not a final extra

Commercial electrical work in NSW must be completed by appropriately licenced contractors and installed to applicable electrical standards and project requirements. The specific approvals needed can vary according to the premises, the scale of work and whether building or fire safety systems are affected.

Your contractor should provide clear documentation for the electrical work, including the relevant compliance certificate. Keep this with tenancy records, equipment manuals and any drawings showing circuit locations. It is useful for landlords, future maintenance, insurance questions and later alterations.

Landlord approval should be obtained before altering the tenancy, particularly where works affect base building services, external façades, metering, fire systems or common areas. A good contractor can identify the likely issues early, but the lease remains the starting point for who must approve and pay for each part of the work.

Choose a contractor who can solve site problems

The lowest quote is not always the lowest project cost. A contractor who misses supply limitations, does not coordinate with the program or cannot manage underground service work can create delays that cost far more than the initial saving.

Look for a licenced and insured team that can explain the scope in plain language, identify exclusions and communicate with the builder, landlord or centre manager. For tenancy projects across the Coffs Coast and Mid North Coast, GROUND. can coordinate electrical installations, switchboard upgrades, lighting, power and underground site works with one practical team.

A commercial tenancy should open with electrical systems that work properly from day one, not a list of fixes waiting for the first quiet week. Get the existing installation checked early, make decisions from a real equipment schedule and leave enough room for the business to grow.