How much does an ensuite renovation cost in Melbourne? (2026)
Quick answer: An ensuite renovation in Melbourne costs $18,000 to $45,000 depending on spec, the same range as a main bathroom. A smaller room doesn't mean a proportionally smaller quote, waterproofing, plumbing and tiling labour cost close to the same regardless of floor area, which is why an ensuite often costs more per square metre than the main bathroom down the hall.
Why the smallest room in the house rarely gets the smallest quote
A 3m2 ensuite and a 6m2 main bathroom need the same core trades, the same waterproofing membrane, the same exhaust fan, close to the same amount of skilled labour time. Halving the floor area doesn't halve the plumber's or the tiler's time on site.
That's the whole reason ensuites cost more per square metre than main bathrooms, not a mystery, just fixed-cost trades applied to a smaller room. Worth knowing before comparing a "starting from" number that assumes a room bigger than the one actually being renovated.
Ensuite renovation cost breakdown, Melbourne 2026
| Spec level | Price range | What is included |
|---|---|---|
| Standard | $18,000 – $24,000 | Waterproofing to AS 3740, ceramic tile, semi-frameless shower screen, basic vanity, chrome tapware, exhaust fan, fresh paint. |
| Mid-spec | $24,000 – $32,000 | Large-format tile, semi-frameless shower screen, wall-hung vanity, matte tapware, niche, quality exhaust fan. |
| Full-spec | $32,000 – $45,000+ | Frameless shower screen, custom niche, feature tile, heated towel rail, floor heating, premium tapware. |
Same tiers as any Melbourne bathroom renovation. See the full bathroom renovation cost breakdown for the complete detail behind each tier.
Waterproofing and ventilation don't shrink with the room
Waterproofing to AS 3740 applies to an ensuite the same way it applies to a main bathroom, the membrane, the falls to the drain and the compliance sign-off don't come at a discount because the room is small. Cutting corners here is the single most expensive mistake to fix later, once tile is down over a bad membrane, fixing it means pulling the tile back up.
Most ensuites don't have a window large enough to ventilate naturally, which means mechanical exhaust is required under the National Construction Code, not optional. A quality exhaust fan is priced into every tier on a proper quote, not treated as an upgrade.
Building a new ensuite where one doesn't exist
Converting an adjoining walk-in robe, or carving a corner off an oversized bedroom, is the most common way a new ensuite gets added to an older Melbourne home. It costs more than renovating an existing one, new plumbing has to reach the nearest stack, and that run isn't always short or simple.
A building permit is required before work starts, and a plumber needs to confirm the stack run before a fixed price is possible. Get that assessed at the site visit, not after a layout's already been sketched around a plumbing path that doesn't actually work.
"Starting from" pricing on a small room is where it does the most damage
"Starting at" pricing is a marketing device, not a quote. If the number can only go up from what's advertised, it was never really the number, and an ensuite is exactly where that gap shows up hardest, because the fixed-cost trades behind a small room rarely land anywhere near a headline "from" figure built around a bigger bathroom. A written fixed-price quote after a real site visit is the only number worth planning a budget around.
Worth knowing
If the ensuite and main bathroom both need work, price them together even if only one gets built first. Splitting them into two separate renovations months apart usually costs more in total, two site setups, two waste removals, two lots of protective coverings, instead of one.
Common questions
How much does an ensuite renovation cost in Melbourne?
An ensuite renovation runs $18,000 to $45,000 depending on spec, the same range as any Melbourne bathroom renovation. A standard ensuite with ceramic tile and a semi-frameless screen sits toward the bottom of that range, a full-spec ensuite with a frameless screen, feature tile and heated floor sits toward the top.
Why does an ensuite cost more per square metre than a main bathroom?
Because waterproofing, plumbing rough-in, tiling labour and an exhaust fan don't get cheaper just because the room is smaller. A 3m2 ensuite and a 6m2 main bathroom need the same core trades, the same standard of waterproofing, and close to the same amount of skilled labour time, so the smaller room ends up carrying more cost per square metre, not less.
Is a heated towel rail or floor heating worth it in a small ensuite?
In a small, enclosed room, both make a bigger difference than in a large bathroom, a small space heats and dries faster. It's a genuine full-spec upgrade rather than a gimmick, and it's priced into the $32,000 to $45,000 tier alongside frameless screens and premium tapware.
Do I need an exhaust fan in an ensuite renovation?
Yes, mechanical ventilation is required for any bathroom without adequate natural ventilation under the National Construction Code, and most ensuites don't have a window large enough to qualify. A quality exhaust fan is part of every tier on a proper ensuite quote, not an optional extra.
Can I build a new ensuite where one doesn't exist?
Often, yes, usually by converting an adjoining walk-in robe or a section of an oversized bedroom. This costs more than renovating an existing ensuite, new plumbing has to run to the nearest stack, which isn't always close, and it needs a building permit before work starts. Get a structural and plumbing assessment at the site visit before assuming a corner of a bedroom is enough space.
Does an ensuite need the same waterproofing as a main bathroom?
Yes, exactly the same standard, waterproofing to AS 3740 applies regardless of room size. This is one of the main reasons a small ensuite doesn't come with a proportionally small price, the membrane, the falls to the drain and the compliance sign-off cost the same whether the room is 3m2 or 8m2.
How long does an ensuite renovation take?
A standalone ensuite renovation typically runs 2 to 4 weeks once work starts, shorter than a main bathroom mainly because there's less floor area to tile and fewer fixtures to install, not because the trades move faster. Waterproofing cure time applies regardless of room size, and it's not a step worth rushing.
Should I renovate the ensuite and main bathroom at the same time?
Financially, often yes. Running one crew through both bathrooms back to back shares site setup, protective coverings and waste removal across two jobs instead of one, which is usually cheaper than two separate renovations booked months apart. Worth pricing both together at the site visit even if only one is renovated first.
Renovating on a tighter budget? See what actually cuts cost in our budget bathroom renovation guide, or check the full bathroom renovation cost breakdown for every tier. See completed bathroom work on our work page. Every gutted. quote follows a real site visit and a real BPC registration check, never a phone estimate. Confirm building permit and ventilation requirements with Consumer Affairs Victoria.