Strata renovation costs in NSW typically range from $15,000 for a basic bathroom refresh to over $80,000 for a full premium gut renovation, and that’s before approval fees, by-law creation, and compliance costs are added to the bill.
Knowing the full picture before you start protects your budget and your timeline. Most cost blowouts in strata renovations happen because owners only plan for the build, not the process around it.
We cover everything here, from typical trade rates and material allowances to strata approval fees, hidden costs, and practical budgeting strategies that keep your renovation on track.
What Is a Strata Renovation and Who Approves It?
A strata renovation is any work carried out within a lot or affecting common property in a strata scheme registered under the Strata Schemes Management Act 2015 (NSW). The scope of what counts as a “renovation” under strata law is broader than most owners expect.
Minor cosmetic changes, painting walls, replacing carpet, swapping light fittings, generally need no formal approval. Anything structural, waterproofing-related, or touching common property requires it.
Owner vs. Common Property, Where the Line Is Drawn
The boundary between your lot and common property is defined by your strata plan, and it matters enormously for cost and approval purposes. In most NSW schemes, the lot boundary sits at the inner face of the external walls, meaning the wall structure itself is common property.
Waterproofing membranes in bathrooms are a particularly important example. In many schemes, the membrane is classified as common property, so replacing it during a bathroom renovation triggers a formal approval process, even if the rest of the work is entirely within your lot.
I always recommend owners pull their strata plan and confirm the boundary before getting quotes. Getting this wrong adds weeks and unexpected costs to any project.
Who Has Approval Authority in a NSW Strata Scheme?
Approval authority depends on the type of work. Under the Strata Schemes Management Act 2015, cosmetic work is owner-initiated with notification only. Minor renovations require owners corporation approval by ordinary resolution. Major renovations, those affecting common property or requiring a special by-law, need a special resolution passed at a general meeting.
The NSW Fair Trading strata living guide outlines the three-tier approval framework in detail. Your strata manager coordinates the approval process, but the owners corporation, not the strata manager, holds the decision-making power.
Typical Strata Renovation Costs in NSW
Renovation costs in NSW vary significantly based on scope, finishes, and the specific trades required. The figures below reflect current Sydney market rates and are based on real project data from the residential renovation sector.
Bathroom Renovation Cost Ranges by Scope
| Renovation Scope | Typical Cost Range (Sydney) |
| Cosmetic refresh (paint, fittings, accessories) | $3,000 – $8,000 |
| Budget bathroom renovation | $12,000 – $18,000 |
| Mid-range bathroom renovation | $20,000 – $35,000 |
| Premium bathroom renovation | $40,000 – $65,000 |
| Full gut renovation (structural changes) | $65,000 – $90,000+ |
These ranges cover labour and materials but exclude strata approval fees, by-law costs, and compliance inspections — which we cover separately below.
The Housing Industry Association’s 2025 Renovation Roundup confirms that bathroom renovations remain the most common residential renovation project in Australia, with costs continuing to rise in line with trade labour shortages and material price increases.
Labour Costs and Trade Rates in Sydney
Labour is the largest single cost in any bathroom renovation. Sydney trade rates in 2025 sit at the higher end of the national range, driven by sustained demand and a tight skilled trades market.
| Trade | Typical Day Rate (Sydney, 2025) |
| Licensed plumber | $95 – $130 per hour |
| Tiler | $65 – $95 per hour |
| Electrician | $95 – $125 per hour |
| Waterproofer | $70 – $100 per hour |
| Builder / project manager | $85 – $120 per hour |
A standard mid-range bathroom renovation in Sydney typically requires 8–12 trade days across all disciplines. That puts labour alone at $8,000 – $15,000 before a single tile is purchased.
Materials, Fittings, and Fixture Allowances
Material costs depend heavily on the specification level you choose. Budget projects use off-the-shelf products from major retailers. Premium projects use imported tiles, designer tapware, and custom joinery — and the price difference is substantial.
| Item | Budget Allowance | Mid-Range Allowance | Premium Allowance |
| Floor and wall tiles | $800 – $1,500 | $2,000 – $4,500 | $5,000 – $12,000+ |
| Vanity and basin | $400 – $900 | $1,200 – $2,800 | $3,500 – $8,000+ |
| Tapware and shower fittings | $300 – $700 | $900 – $2,200 | $2,500 – $6,000+ |
| Toilet suite | $300 – $600 | $700 – $1,400 | $1,500 – $3,500+ |
| Shower screen | $400 – $800 | $1,000 – $2,000 | $2,500 – $5,000+ |
Locking in your fixture selections before work starts is one of the most effective ways to control costs. Late changes to fittings mid-project are a leading cause of variation orders and budget blowouts.
Strata Approval Fees and Administrative Costs
This is the cost category most owners underestimate. The approval process for a strata renovation in NSW involves multiple parties, the strata manager, the owners corporation, and often a solicitor, and each step carries a fee.
By-Law Creation and Legal Fees
Major renovations affecting common property require a special by-law to be drafted, approved at a general meeting, and registered with NSW Land Registry Services. This is not optional — without a registered by-law, the renovation has no legal standing within the scheme.
| By-Law Cost Component | Typical Range |
| Strata solicitor / lawyer (drafting) | $800 – $2,500 |
| NSW Land Registry Services registration fee | $167 – $220 (2025 rate) |
| Strata manager administrative fee | $300 – $800 |
| General meeting convening fee | $500 – $1,500 |
The NSW Land Registry Services fee schedule is updated annually and should be confirmed at the time of lodgement. Total by-law costs typically land between $1,800 and $5,000 depending on complexity and the solicitor engaged.
Strata Manager and Owners Corporation Fees
Beyond by-law costs, strata managers charge for the administrative work involved in processing renovation applications. These fees are not standardised and vary between management companies.
Common charges include application review fees ($150 – $500), correspondence and meeting coordination fees ($200 – $600), and inspection or sign-off fees ($150 – $400). Some schemes also require a renovation bond, a refundable deposit held against potential damage to common property, typically ranging from $1,000 to $5,000.
Budget a minimum of $1,500 – $3,000 for strata administrative costs on any major renovation. On complex projects involving structural changes or extended access to common areas, that figure can reach $5,000 or more.
Hidden Costs That Blow Strata Renovation Budgets
The costs above are the ones most owners plan for. The ones below are the ones that catch people off guard, and they are responsible for the majority of strata renovation budget blowouts I see.
Waterproofing, Compliance, and Inspection Costs
Waterproofing is non-negotiable in any bathroom renovation, and in a strata context it carries additional compliance weight. Work must comply with AS 3740-2021, the Australian Standard for waterproofing of domestic wet areas.
A licensed waterproofer must carry out the work, and in many cases a private certifier or council inspector must sign off before tiling can proceed. Waterproofing itself costs $800 – $2,500 for a standard bathroom. Add a private certifier inspection at $400 – $900, and compliance costs alone can reach $3,500 before a single tile goes on the wall.
Some strata schemes also require a pre-renovation condition report, a documented record of the state of common property before work begins. This protects both the owner and the scheme, but it adds $300 – $600 to the pre-construction cost.
Delays, Variations, and Scope Creep
Strata renovations move more slowly than standalone house renovations. Access restrictions, noise by-laws limiting work hours, lift bookings for material deliveries, and the need to coordinate with strata management all add time, and time costs money.
A one-week delay on a project with active trades on site can add $2,000 – $5,000 in holding costs and rescheduling fees. Variation orders, changes to the agreed scope mid-project, are priced at a premium because trades have already mobilised and scheduled other work around your job.
The most effective protection against scope creep is a detailed, locked scope of works agreed in writing before the first tool is picked up. I cannot overstate how much this single step reduces variation risk.
How to Budget for a Strata Renovation in NSW
Budgeting for a strata renovation requires a different approach than budgeting for a standard house renovation. The approval process, administrative costs, and compliance requirements all need to be built into the budget from day one, not discovered halfway through.
Building a Realistic Cost Breakdown
A complete strata renovation budget has five distinct cost categories. Missing any one of them produces an unrealistic number that sets the project up for a blowout.
| Cost Category | What It Covers |
| Construction costs | Labour, materials, fittings, fixtures |
| Strata approval costs | By-law creation, registration, admin fees |
| Compliance costs | Waterproofing certification, inspections, certifier |
| Preliminary costs | Condition reports, design fees, council applications |
| Contingency | Unforeseen variations, delays, scope changes |
Get fixed-price quotes from your trades before committing to a budget. Provisional sums, open-ended allowances for items not yet specified, are a common source of budget overruns. The more you can lock in before work starts, the more accurate your budget will be.
Contingency Planning and Cost Control Strategies
A 15% contingency is the minimum I recommend for any strata bathroom renovation. On a $30,000 project, that is $4,500 held in reserve. On a $60,000 project, it is $9,000.
The contingency is not a slush fund, it is a structured reserve for genuine unforeseen costs. Common triggers include discovering deteriorated substrate under existing tiles, finding non-compliant plumbing that must be rectified before new work can proceed, and strata-imposed variations to the approved scope.
A fixed-price contract with a clearly defined scope of works is the single most effective cost control tool available. It transfers variation risk to the contractor and gives you a hard number to plan around.
Is a Strata Renovation Worth the Investment?
For owner-occupiers, the answer is almost always yes, a well-executed bathroom renovation improves daily liveability and protects the long-term condition of the property. For investors, the calculation is more specific.
Return on Renovation Spend in NSW Property Market
In the Sydney property market, a mid-range bathroom renovation in a strata apartment typically delivers a $1.50 – $2.50 return for every $1.00 spent when the property is sold, according to CoreLogic’s 2025 Renovation Value Report. Premium renovations in high-demand suburbs can exceed this range, particularly where the existing bathroom is significantly dated relative to comparable properties in the building.
For rental properties, a renovated bathroom supports a rental premium of $50 – $150 per week in most Sydney markets, depending on location and property type. On a $25,000 renovation, that premium recovers the full cost within 3–5 years through increased rental income alone, before any capital value uplift is counted.
The investment case is strongest when the renovation brings the property to market standard for the building and suburb. Over-capitalising on finishes in a building where comparable apartments are mid-range rarely delivers proportional returns.
Conclusion
Strata renovation costs in NSW are manageable when you plan for the full picture, construction, approvals, compliance, and contingency together. The owners who stay on budget are the ones who build every cost category in from the start, not the ones who discover fees mid-project.
Understanding the approval process and its associated costs is not a bureaucratic hurdle. It is a core part of the financial plan for any strata renovation in NSW.
At Sydney Home Renovation, we help homeowners and investors plan and deliver strata bathroom renovations with transparent cost breakdowns, fixed-price contracts, and end-to-end project coordination. Reach out to us to get a detailed quote and a clear renovation plan built around your budget.
Frequently Asked Questions
How long does strata renovation approval take in NSW?
The approval timeline depends on the type of work. Minor renovations requiring an ordinary resolution can be approved at the next scheduled committee meeting, typically 4–8 weeks. Major renovations requiring a special resolution need a general meeting, which can take 8–16 weeks from application to approval.
Do I need a by-law for every strata renovation?
No. Cosmetic work and minor renovations within your lot generally do not require a by-law. A special by-law is required when the renovation affects common property, involves structural changes, or requires ongoing rights, such as the right to maintain new waterproofing within a common property membrane.
Can the owners corporation reject my renovation application?
Yes. The owners corporation can reject an application if the proposed work affects common property without adequate protection for the scheme, breaches existing by-laws, or fails to meet the information requirements set out in the Strata Schemes Management Regulation 2016. A well-prepared application with detailed plans and a scope of works significantly reduces rejection risk.
What happens if I renovate without strata approval?
Renovating without required approval is a breach of the Strata Schemes Management Act 2015. The owners corporation can require you to restore the property to its original condition at your own expense. In serious cases, the matter can be taken to NCAT (NSW Civil and Administrative Tribunal), which can issue orders and impose penalties.
How much should I budget for strata approval fees in NSW?
Budget a minimum of $3,000 – $6,000 for approval-related costs on a major strata renovation. This covers by-law drafting, Land Registry registration, strata manager fees, and meeting costs. Complex projects with structural changes or extended common property access can push this to $8,000 or more.
Can I use any contractor for a strata renovation in NSW?
The contractor must hold the appropriate NSW Fair Trading licence for the work being performed. Most strata schemes also require contractors to carry public liability insurance of at least $20 million and provide a certificate of currency before work begins. Some schemes maintain an approved contractor list — check with your strata manager before engaging trades.
What is a renovation bond in strata and do I have to pay it?
A renovation bond is a refundable deposit held by the owners corporation as security against damage to common property during the renovation. It is not a universal requirement, it depends on your scheme’s by-laws and the nature of the work. Bonds typically range from $1,000 to $5,000 and are returned after a post-renovation inspection confirms no damage to common property.
