Bathroom Renovation Timeline: Step-by-Step Guide

Q: Can I live in the house during a full bathroom gut-and-rebuild?

It&#39;s doable if you have a second bathroom, but plan for real disruption — no running water to that wet area for potentially four to six weeks. If it&#39;s your only bathroom, most families find it worth budgeting for short-term accommodation during at least the waterproofing and tiling phases, when the space is genuinely unusable.

Title: How Long Does It Take To Remodel A Primary Bathroom? Upload Date: 2025-06-27 Description: Explores realistic bathroom remodel timelines, covering how scope of work, trade availability and project complexity affect how long a renovation takes from start to finish. Video Credit: Mosby Building Arts

So, How Long Does a Reno Actually Take?

A bathroom reno is, at its heart, a very visual thing. New tiles, a wall-hung vanity, maybe even a freestanding bath — that's where our heads go first, especially when the budget's feeling generous! Six weeks of planning, chasing decisions and wrangling trades? Yeah, that part doesn't exactly get people fired up.
For a purely cosmetic update — think new tapware, a vanity swap and a fresh coat of paint — you're looking at two to three weeks, give or take. Strip the room back and shift the plumbing around, though, and the timeline blows out to six to ten weeks — and that means going without a working bathroom for roughly four to six weeks, depending on the scope of work.
Three things tend to blow out a bathroom reno timeline more than anything else:
Tradesperson availability Good waterproofers and plumbers are often booked out for weeks — so don't leave it too late to lock them in.
Product delivery times That specific Italian tile or imported shower mixer? It could be weeks before it lands on site — factor that in early.
Council and inspections. The last of the delays are usually council and inspections, so make sure you give plenty of time for this.
We suggest planning your schedule with plenty of buffer time in case there are any delays. With that all understood, we want to run through the steps for a renovation. It starts long before you put your first trowel on your project.

Overhead view of architects reviewing coloured floor plans, laptop, and tablet

Phase 1: Planning, Design, and Council Approvals

This is the stage where we find most homeowners underestimate how long this actually takes. It would be common for some to jump in and get their plumber out to their house and not really have a design.
Prior to any work, you need to have a floor plan, have made all choices of fixtures and fittings (the bathroom mixer, your basin, toilet, your shower enclosure, tile and grout colour etc.) you need to get quotes for the trades required to do this project (plumber, electrician, tiler, waterproofer etc) and work out whether or not your bathroom project will require a Complying Development Certificate or if you will need to submit for a full Development Application (CDC or DA). You can get a CDC back in as little as ten business days or for a DA you should plan for 40 to 60 days, which can sometimes depend on your council. That is not a typo.
You should also place orders for all your longer lead items at this stage. While a Fienza or Poseidon vanity may come straight from a local supplier, a custom-sized shower screen from Covey or imported tapware can take four to eight weeks. If you do not order prior to demolition, then you may end up waiting weeks for your materials to arrive and won't be able to use your bathroom during this time.
Once all approvals are received and fixtures are ordered, you can start the renovation.

Two tradesmen tiling a bathroom wall with tape measure and trowel

Phase 2: Demolition, Waterproofing, and Rough-In Work

Demolition is one of my favourite parts! You get to watch the old wall-hung vanity being removed, or watch the tiles being smashed off your bathroom walls. Demolition typically takes one to two days, then your plumber and electrician move in for two to three days of rough-in work, as in-wall cisterns go in, mixer bodies go into the wall and electrical cables run to their destination. After the tiles go on, you can't retrofit these features. Not ever.
Then comes waterproofing, which is where your bathroom renovation timeline can either make or break. The Australian standards are clear on minimum coverage: Under NCC 2022, ABCB Housing Provisions, Part 10.2 and AS 3740:2021, shower walls must be waterproofed to at least 1800mm above the floor substrate (AS 3740:2021) (NCC 2022, ABCB Housing Provisions, Part 10.2), and bath-adjacent walls to a minimum of 150mm above the rim. Your licensed waterproofer will apply two to three coats of waterproofing membrane, allowing 24 to 48 hours to pass between each coat. This is a phase that must be inspected before tiling can commence — no exceptions. Costs for waterproofing typically run $1,500 to $4,000 depending on the size of your bathroom. All electrical work in wet zones must be performed by a licensed electrician and RCD protection is required per AS/NZS 3000:2018.
With waterproofing inspected and passed, your bathroom will begin to look a lot more like a bathroom.

Plumber in blue overalls fitting chrome tap on white bathroom basin

Phase 3: Tiling, Fixtures, and Fit-Off

Tiling takes two to four days, followed by a 24-hour wait for the tile adhesive to cure before your tiler can begin grouting, which then takes another 24 hours before the grout can be sealed. Order 10 to 15 percent extra tiles to account for cuts and breakages.
After that, your fit-off sequence is really important, as this is where so many renovations fall apart. The vanity installation doesn't happen until after tiling is complete. Your plumber comes back to install your toilet suite, hang your basin and install your tapware dress kits (the decorative pieces that attach over the rough-in mixer body) and connect your shower. All tapware and shower products must be WaterMark certified before a plumber can legally install them — and the regulatory requirements don't stop there. Water at your bathroom outlets is only legally allowed to reach a maximum temperature of 50°C (AS/NZS 3500.4), as per AS/NZS 3500.4.
These bathroom renovation tips apply whether you're planning a budget bathroom renovation or a full luxury overhaul — knowing how to renovate a bathroom means respecting the sequence of trades just as much as choosing the right fixtures. If your layout includes an urinal, for example, rough-in for that fitting must also be completed before waterproofing begins. Likewise, if you're considering an inset bath, confirm its dimensions early so the tiler can plan the surrounding tile layout accordingly.

Builder pointing at freestanding white bath while woman with clipboard inspects grey-tiled bathroom

Phase 4: Final Inspections, Snagging, and Handover

Your bathroom renovation timeline isn't quite finished once the last piece of hardware has been screwed to the wall and the silicone has had time to dry. Allow two to five days for close-out — longer if rectification work is needed. Your plumber arranges a final inspection, your waterproofer submits their certificate, and you get to walk through and do a snagging list: check all silicone beads for gaps, turn on taps and test the flush of the toilet suite, look at grout for inconsistencies, and ensure all accessories are level and tight to the wall.
Get all your documents together, including certificates of compliance, warranty information for your fixtures, and product manuals. Keep these in a folder — the paperwork will be useful if you ever need to make a claim or decide to sell your home. It's also worth confirming that any replacement toilet parts or spare fittings are noted in your documentation, so sourcing them later is straightforward. Taking care during that final phase can make a massive difference to how smoothly your bathroom renovation wraps up.

References

National Construction Code 2022, ABCB Housing Provisions, Part 10.2 Wet Areas
AS 3740:2021 Waterproofing of Domestic Wet Areas, Standards Australia
AS/NZS 3000:2018 Electrical Installations (Wiring Rules), Standards Australia
WaterMark Certification Scheme, Australian Building Codes Board
AS/NZS 3500.4 Plumbing and Drainage — Heated Water Services, Standards Australia

FAQs

Can I live in the house during a full bathroom gut-and-rebuild?

It's doable if you have a second bathroom, but plan for real disruption — no running water to that wet area for potentially four to six weeks. If it's your only bathroom, most families find it worth budgeting for short-term accommodation during at least the waterproofing and tiling phases, when the space is genuinely unusable.

Does the order I book tradespeople in actually matter that much?

Enormously. Plumbers and electricians must complete rough-in before the waterproofer arrives, the waterproofer must be inspected before the tiler starts, and the tiler must finish before the vanity goes in. Book each trade in sequence but confirm their availability before you lock in the previous one — a gap of even a few days between trades can compound into weeks.

What's the most common reason bathroom renovations run over budget?

Tile wastage is consistently underestimated — most tilers recommend ordering 10 to 15 percent extra to account for cuts and breakages, and matching a discontinued tile mid-project is an expensive headache. Locking in every product before demolition starts, as the body recommends, also protects you from price rises on reorders.