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Council and Strata Approvals – What renovations need what? (The NSW Facts)

Mr & Mrs Elias specialise in architectural apartment renovations across Sydney, delivering considered design and expertly managed construction.

We believe every renovation should reflect the way you live, balancing design integrity, functionality and longevity.

Our integrated team of architects, designers and specialist home renovation builders in Sydney guides each project from initial concept through to completion and aftercare, simplifying what can otherwise be a complex process. With deep experience in Class 2 and strata environments, we understand the nuances of apartment living and design spaces that feel refined and enduring.

To learn more about how we work, explore our process or view our latest projects.


Understanding what’s required before renovating your apartment

Renovating an apartment in Sydney involves more than considered design and construction – it also requires a clear understanding of strata approval and by-laws. Apartment renovations take place within shared buildings, which means common property, structural changes, building services and noise must all be carefully managed.

As a design and construct firm specialising exclusively in apartment renovations across Sydney, we guide clients through the process when renovating an apartment. This includes managing strata approval, coordinating engineers and certifiers, and preparing documentation. Our role is to ensure your apartment renovation is compliant, efficient and well coordinated from the outset.

The following outlines key considerations when renovating an apartment in NSW.


When strata approval is required

Strata approval is typically required for apartment renovations that affect the building, its services or neighbouring apartments.

Renovations that impact common property

Common property generally includes structural elements and shared services. Strata approval is typically required when apartment renovations involve:

  • Drilling into concrete slabs, ceilings or structural walls
  • Altering plumbing, electrical or ventilation systems
  • Bathroom renovations, where waterproofing forms part of common property
  • Installing, relocating or upgrading air conditioning systems
  • External changes such as windows, doors or façade elements

Noise-generating works

Renovating an apartment often involves works that generate noise, including demolition, floor removal or structural modifications. These apartment renovations require approval and must comply with strata by-laws relating to work hours and noise restrictions.

Structural or major apartment renovations

If your apartment renovation includes structural works approval from the owners corporation is required before work begins.


Types of apartment renovations and approval requirements

Cosmetic works — no approval required

Cosmetic apartment renovations generally do not affect common property. Examples include:

  • Painting internal walls
  • Installing picture hooks
  • Updating internal cabinetry hardware

Even with cosmetic works, it is important to review your strata by-laws before renovating an apartment.

Minor renovations — general resolution approval

Minor apartment renovations usually require approval by a simple majority vote at a general meeting. These may include:

  • Installing new flooring
  • Kitchen renovations without relocating services
  • Removing non-load-bearing walls
  • Minor internal layout changes

Major renovations — special resolution and registered by-law

Major apartment renovations require a special resolution (75% approval) and often a registered by-law. These include:

  • Bathroom renovations involving waterproofing
  • Structural modifications
  • Changes affecting common property
  • Layout reconfigurations
  • External alterations, including windows
  • Relocating wet areas

When council approval is required

Council approval is sometimes required for apartment renovations in NSW, particularly when works extend beyond internal cosmetic changes.

  • Structural alterations
  • Changes to fire safety systems, ventilation or essential services
  • Modifying room configurations that impact compliance
  • Works requiring a DA (Development Application) or CDC (Complying Development Certificate)

For apartment renovations, council approval most commonly applies to structural changes. In these cases, both strata approval and council approval must be obtained before construction begins.

Overview of the strata and council approval process:

Obtain a copy of the strata by-laws to understand the rules for your building. You may be able to request this from the owners corporation or Strata Manager.

NSW strata by-laws guide

Submit to the owners corporation a detailed application, including renovation plans, timelines, and contractor details. Ensure you meet all building codes and standards required for compliance.

NSW Building Code and Standards

Your application will be reviewed by the strata committee and, depending on the scope of works, may require approval at a general or extraordinary meeting.

Where a DA is required, strata approval documents and meeting minutes are typically submitted as part of the application process.

NSW strata meetings & voting guide

If approved, conditions may include work hours, noise restrictions, bonds, or maintenance responsibilities. Ensure you understand and comply with these terms before starting work.

Depending on the council, each has different requirements and conditions. Some applications will require a Draftsman to complete drawing or an Engineer to provide a report.

DA information for:

City of Sydney

North Sydney Council

Woollahra Municipal Council

Approval timeframes and council fees vary based on the complexity of the renovation and the specific council requirements.


Start your Sydney home renovation

At Mr & Mrs Elias, we believe exceptional home renovations are defined by both the final outcome and the experience of creating them. Through a structured design and construct approach, our Sydney renovation specialists deliver refined, enduring apartment homes tailored to contemporary living.

To learn more about how we work, explore our process or view our latest projects.

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