Apartment and townhouse bathroom renovations in Sydney require careful planning, strata approval, and compliance with local laws. Unlike freestanding homes, strata properties involve shared walls, regulated noise levels, limited access, and legal documentation before work can even begin.
This guide walks you through everything you need to know from planning and budgeting to working with strata committees, understanding legal obligations, and choosing materials that make the most of smaller spaces. Whether you live in a high-rise apartment in the Inner West or a townhouse in the Northern Beaches, this article provides practical insights to get your renovation started the right way.
Key Takeaways for Unit Renovators
- Strata approval is mandatory for any bathroom renovation work
- Timeline: 4–6 weeks, often longer due to strata restrictions
- Licensed trades and waterproofing certificates are legally required
- Designs must suit small spaces and comply with fire and building codes
How Apartment Renovations Differ from Houses
- Strata approval required — even for cosmetic work
- Access limits — stairs, lifts, parking bays affect trades
- Shared plumbing stacks — restrict layout changes
- Noise rules and time windows — typically weekdays 9am–4pm
- Strata by-laws must be followed — non-compliance can lead to fines
Understand the Challenges of Apartment Renovations
Why are apartment bathroom renovations more complex?
Key challenges include:
- Shared plumbing stacks and walls affecting water pressure and layout changes
- Limited access via lifts, loading docks, or stairwells
- Strata-imposed work hours (often 9am–4pm weekdays only)
- Soundproofing and neighbour disturbance limits
These add both time and cost especially if noisy work or wet area upgrades are required.
Your Strata Responsibilities and Legal Requirements
Do I need strata approval for a bathroom renovation in Sydney?
Yes, strata permission is needed before any renovation work begins even cosmetic changes.
Bathroom renovations almost always involve waterproofing and plumbing, which affect common property. NSW law and most by-laws require owners to:
- Notify the owners’ corporation
- Provide a detailed scope of works
- Submit licence and insurance certificates for all contractors
- Sign an indemnity form or by-law allowing the works
Learn more about council approval for bathroom renovations in Sydney.
Tip: Ask your strata for a renovation by-law template to speed up the approval process.
Budgeting for Apartment Bathroom Renovations

Apartments and townhouses often cost more to renovate because of:
- Access costs, such as lift protection, permits, or extra labour
- Tight working conditions, requiring smaller teams or staged works
- Shared plumbing, which may limit fixture relocation
- Noise restrictions, extending the project timeline
Need clarity on permits, cost, or trade requirements? Many apartment owners simplify their process by working with experienced professionals in bathroom remodeler in Sydney.
Work Only With Licensed, Insured Professionals
Can I do any of the work myself?
No. Plumbing, waterproofing, and electrical work must be done by licensed trades in NSW.
All renovations involving wet areas require:
- Waterproofing certificate (AS 3740)
- Plumbing and electrical compliance forms
- HBCF insurance for works over $20,000
Strata will ask for these before giving final sign-off.
Get expert tips in our Sydney bathroom waterproofing guide.
Design Tips for Small Space Bathrooms
What works best in apartment bathrooms?
Design with space efficiency in mind and avoid non compliant alterations.
Top space-saving and strata-friendly strategies:
- Wall-mounted vanities and mirrored storage
- Recessed shelving in wet areas
- Frameless shower panels to maintain visual openness
- Low-noise exhaust fans and lighting that comply with shared circuitry rules
Planning your layout? Check out our step-by-step Sydney bathroom renovation guide.
How Long Does an Apartment Renovation Take?
What’s the typical timeline for strata properties?
Allow 4–6 weeks for a complete apartment bathroom renovation.
Unlike houses, strata rules may only allow work during weekday business hours extending the timeline. Factors include:
- Delay in strata sign-offs or inspections
- Shared service disruptions, like plumbing stack shutdowns
- Material handling logistics (e.g. tile lifts, noisy tools)
Final Inspection and Handover Essentials
Once your renovation is complete, ensure you collect:
- Waterproofing certificate (AS 3740-compliant)
- Plumbing and electrical sign-offs
- Product warranties and care guides
- Final sign-off or acknowledgement from strata
Common Questions About Renovating in Sydney Apartments
Why do apartment renovations cost more?
Costs are higher due to access limits, shared services, and project staging needs.
Can I move fixtures like toilets or vanities?
Yes, but it often requires additional strata approval and common property access.
Do I need waterproofing certification?
Yes, AS 3740-compliant waterproofing is legally required, with documentation provided at handover
Planning Your Bathroom Upgrade in a Strata Setting
Whether you’re freshening up a compact ensuite or updating an older apartment layout, a well-planned renovation can dramatically improve comfort, value, and practicality in your Sydney home. This guide has outlined every key consideration from strata paperwork and legal compliance to layout tips and final inspection giving you the clarity to move forward with confidence.
At Empire Tiles, we specialise in premium bathroom renovations across Sydney, including apartment and townhouse settings. From luxury finishes to space smart solutions, our team delivers high-end expertise blending high-quality craftsmanship with deep local knowledge of strata processes and regulations.
Resources
- NSW Fair Trading – Bathroom Renovation Standards: https://www.fairtrading.nsw.gov.au/
- Standards Australia – AS 3740: https://store.standards.org.au/product/as-3740-2021