How Long Does a Home Renovation Take in Sydney?
A home renovation in Sydney takes 3 weeks to 12 months depending on scope. A single-room renovation (kitchen or bathroom) takes 3–8 weeks. A whole-home renovation takes 3–6 months. A renovation combined with an extension takes 6–12 months.
These timelines cover the construction phase only — add 4–12 weeks for design, documentation, and council approvals (if required). Structural modifications, heritage overlays, and flood zone locations can extend approval timelines significantly.
Buildana (Lic. 487805C) provides a detailed week-by-week renovation schedule in every contract. Our Western Sydney renovation projects consistently complete on time because we plan for the common delays before they happen.
Renovation Timeline by Project Type
Kitchen Renovation (3–8 Weeks): • Week 1: Strip-out existing kitchen, rough-in electrical and plumbing • Weeks 2–3: New wall linings, waterproofing (if splashbacks are tiled), floor preparation • Weeks 4–5: Cabinetry installation, benchtop templating and installation • Week 6: Appliance installation, splashback tiling, painting • Weeks 7–8: Final electrical/plumbing fit-off, final clean, handover
Bathroom Renovation (3–6 Weeks): • Week 1: Strip-out, rough-in plumbing and electrical • Week 2: Waterproofing membrane (requires 72-hour cure) • Weeks 3–4: Tiling (floor, walls, shower niche) • Week 5: Vanity, toilet, shower screen, tapware installation • Week 6: Final fit-off, paint touch-ups, clean, handover
Whole-Home Renovation (3–6 Months): • Month 1: Demolition, strip-out, structural modifications • Month 2: Electrical and plumbing rough-in, wall linings, insulation • Month 3: Wet area waterproofing and tiling, kitchen cabinetry • Month 4: Flooring, painting, built-in joinery • Month 5: Final fit-off, appliances, fixtures • Month 6: Defect check, final clean, handover
The Approval Phase — Before Construction Starts
Not all renovations require council approval. Here's the breakdown:
No approval required (exempt development): • Cosmetic upgrades: painting, flooring, fixture replacement • Like-for-like replacement: windows, doors, roofing (same size/position) • Internal non-structural wall removal or addition
CDC required (10–15 business days): • Structural wall removal with engineering certification • Window or door size changes • Many internal layout changes involving structural elements
DA required (40–90+ business days): • Heritage-listed or heritage conservation area properties • Flood or bushfire prone land • Changes to external building envelope not meeting CDC standards
Buildana determines the approval requirement during the free consultation. For structural renovations, we include approval management in the fixed-price contract. Read more about approval pathways at /insights/what-is-complying-development-nsw-2026.
Common Causes of Renovation Delays
Delays in renovation projects almost always stem from one of these causes:
1. Incomplete scope definition: Changing your mind during construction adds weeks. Buildana conducts thorough design consultations before quoting to lock in scope.
2. Hidden defects discovered during strip-out: Termite damage, asbestos, rotted framing, or non-compliant electrical/plumbing in older homes. Buildana's site assessment identifies likely issues before construction starts.
3. Material lead times: Custom joinery (4–6 weeks), imported tiles (6–8 weeks), and specific appliances can hold up fit-out. Buildana orders long-lead items during the approval phase.
4. Weather: Heavy rain delays any work involving wet-area waterproofing curing, exterior painting, or exposed roof work. Sydney's weather is unpredictable — our schedules include weather contingency.
5. Trade availability: Peak building season (September–March) can stretch trade bookings. Buildana uses in-house and long-term subcontractor teams to maintain schedule reliability.
6. Council delays: DA processing times vary widely. Pre-application meetings and thorough documentation reduce the chance of council requesting additional information.
How to Keep Your Renovation on Schedule
Buildana's advice for a smooth renovation timeline:
• Finalise your design before signing the contract. Changes during construction are the number one cause of delays and cost blowouts • Choose fixtures and finishes early. Selecting tiles, tapware, benchtops, and appliances before construction starts means no waiting during fit-out • Budget a 10% contingency for older homes. Hidden defects in pre-1990 homes are common — a contingency means they don't blow out your timeline or budget • Communicate with your builder. Buildana provides weekly progress updates with photos and next-week previews • Plan for temporary relocation if needed. Whole-home renovations requiring structural work typically need 4–8 weeks of alternative accommodation
Ready to start your renovation? Buildana provides a free consultation with a detailed scope, timeline, and fixed-price quote. Visit /contact or read our cost guide at /insights/home-renovation-cost-sydney-2026.
