Renovation planning guide

How to Plan a Kitchen and Bathroom Renovation in Sydney

A successful renovation begins well before demolition. This practical guide explains how to align scope, design, services, approvals, budget and construction sequencing when kitchens and bathrooms are being upgraded together.

Completed contemporary kitchen renovation with island bench and integrated cabinetry

Start with the whole project

Coordinate the rooms, services and decisions as one renovation

Kitchens and bathrooms concentrate plumbing, electrical work, ventilation, waterproofing, cabinetry, finishes and daily-use requirements into relatively small spaces. Treating each room as a separate cosmetic exercise can create avoidable clashes, duplicated trade visits and late design changes.

A coordinated brief helps the project team understand what must remain, what will move and which decisions affect structure or essential services. It also gives owners a clearer basis for comparing scope, allowances and exclusions before work begins.

A reliable sequence

Six planning steps before construction

1

Define priorities

Separate essential outcomes from preferences. Record storage, accessibility, appliance, fixture, lighting, durability and maintenance needs for each room.

2

Investigate the building

Review existing dimensions, structure, plumbing, drainage, power, ventilation and access. Existing conditions can materially influence what is practical.

3

Coordinate the design

Resolve layouts, clearances, cabinetry, fixtures, finishes and service locations together. Early coordination reduces conflicts during construction.

4

Confirm approvals and roles

Identify any building, strata, design, certification or regulated-work requirements that apply to the project before committing to the programme.

5

Build the cost plan

Compare like-for-like scope and include demolition, services, fixtures, finishes, access, protection, waste, testing and reasonable contingency.

6

Plan delivery

Agree selections, lead times, trade sequencing, site access and hold points. Confirm how changes will be assessed and authorised during the work.

Room-specific coordination

Kitchen and bathroom priorities are related but not identical

Both rooms rely on coordinated services and durable finishes, but the highest-risk decisions differ. The comparison below helps owners prepare a more complete brief.

Planning areaKitchen focusBathroom focus
LayoutWork zones, appliance clearances, storage and circulation.Fixture clearances, safe access, privacy and practical movement.
ServicesPower demand, appliance connections, plumbing and extraction.Water supply, drainage, ventilation and wet-area electrical coordination.
Building interfaceWall changes, cabinetry fixing, floor levels and service routes.Substrate condition, falls, waterproofing interfaces and penetrations.
SelectionsCabinetry, benchtops, hardware, appliances and task lighting.Fixtures, tapware, tiles, screens, storage and slip-aware finishes.
Quality checksFit, alignment, operation, connections, ventilation and finish consistency.Waterproofing records, falls, drainage, sealing, ventilation and fixture operation.

Scope and responsibility

Know who is responsible for each decision

Renovation projects can involve builders, licensed trades, designers, engineers, certifiers, strata representatives and suppliers. The required mix depends on the property and proposed work.

SCE Corp is a highly qualified, skilled and experienced construction team. We can coordinate building delivery and assist with engineering-related work where the project scope and professional responsibilities support it. SCE is NSW DBP registered; project-specific design and certification responsibilities remain with the appropriately appointed parties.

For broader capability and delivery context, review SCE’s building services.

Cost control

Compare complete scope, not just the headline price

Price differences often reflect different assumptions. A useful comparison checks what is included for investigation, demolition, protection, structural work, services, fixtures, cabinetry, finishes, approvals, access, waste and handover.

High allowances can overstate the budget, while unrealistic allowances can lead to repeated variations. Selections made early provide a more dependable cost plan and reduce pressure on the programme.

Use SCE’s project tools to support early planning and informed discussions.

Construction readiness

A pre-start checklist for owners

  • The room layouts and critical dimensions are agreed.
  • Appliances, fixtures and major finishes are selected.
  • Service locations and capacity have been reviewed.
  • Building, strata and approval requirements are understood.
  • Long-lead items and delivery dates are confirmed.
  • Access, protection, waste and working hours are planned.
  • Temporary kitchen or bathroom arrangements are practical.
  • Variation, inspection and handover processes are clear.

Past work can help owners understand the breadth of SCE’s delivery experience. View the SCE projects portfolio for relevant project context.

Common questions

Kitchen and bathroom renovation FAQs

Should the kitchen and bathroom be renovated at the same time?

Combining them can improve service coordination and reduce duplicated setup, but it also increases disruption and selection workload. The right approach depends on budget, access, temporary facilities and whether the rooms share service routes or structural work.

How early should fixtures and finishes be selected?

Major appliances, fixtures, cabinetry details and key finishes should be resolved early enough to coordinate dimensions, services and lead times. Late selections can affect cost, sequencing and the ability to maintain the agreed programme.

When might structural input be required?

Structural input may be required when walls, openings, floors or load-bearing elements are changed, or when existing conditions indicate movement or deterioration. The need should be assessed against the actual property and proposed work.

What should be checked before bathroom waterproofing begins?

The substrate, falls, penetrations, junctions, drainage locations and product system should be coordinated before application. Applicable responsibilities and inspection records should also be agreed for the specific project.

Can occupants remain in the property during renovation?

Sometimes, provided safe access, dust and noise controls, temporary facilities and service interruptions are manageable. The decision should be based on the construction sequence, household needs and site-specific safety requirements.

How can renovation variations be reduced?

Complete investigations, coordinated documentation, early selections and a clear scope reduce avoidable variations. A documented process for assessing genuine latent conditions or requested changes also helps maintain cost and programme control.

Plan with greater clarity

Discuss your renovation scope with SCE Corp

Share the property details, priorities and current stage of planning. SCE can review the construction brief and outline practical next steps within the project-specific scope.