Small bathroom renovation cost in Sydney
A small Sydney bathroom — the typical 3–4 m² apartment or second bathroom — runs $10,000 to $18,000 for a full renovation. The surprise for most owners is how little it drops below a standard bathroom: the fixed costs barely shrink when the room does.
Quick answer — small bathroom renovation cost in Sydney
| Scope | Typical Sydney range (2026) |
|---|---|
| Cosmetic refresh (paint, re-grout, new tapware & accessories) | $4,000 – $8,000 |
| Mid-range full reno (new tiles, vanity, toilet, screen, same layout) | $10,000 – $15,000 |
| Full reno + layout change (relocate plumbing) | $15,000 – $22,000 |
Why small bathrooms don't cost proportionally less
1. The fixed costs don't scale down
Waterproofing a 3 m² floor takes nearly the same call-out, materials, and cure time as 7 m². Your plumber, tiler, and electrician all charge a day rate that doesn't care how small the room is. Demolition, rubbish removal, and the site set-up are flat costs. On a small bathroom these fixed items make up a bigger slice of the total — which is why halving the floor area only trims maybe 20–25% off the price, not half.
2. Small rooms cost more per square metre to tile
Tight spaces are slower to work in. There are more cuts around the toilet, vanity, and shower niche per square metre, more edges, and less room for two trades to work at once. Tiling that runs $80–$100/m² in a large bathroom often lands at $100–$140/m² in a compact one.
Where the money goes in a small Sydney bathroom
On a typical $14,000 small-bathroom reno the rough split is: trades labour 35–40%, tiles and tiling ~20%, fixtures and fittings (vanity, toilet, screen, tapware) ~25%, waterproofing 6–8%, and demolition plus rubbish around 8%. Add 10% contingency — in older Sydney terraces and apartments, lifting old tiles routinely exposes rot, asbestos sheeting, or failed waterproofing that has to be made good.
Itemised example — Surry Hills apartment, 3.2 m²
| Line item | Cost |
|---|---|
| Strip-out, demolition & rubbish removal | $1,650 |
| Plumbing (rough-in + fit-off, same layout) | $3,200 |
| Electrical (new GPO, exhaust fan, downlights) | $850 |
| Waterproofing (AS 3740 compliant) | $900 |
| Floor & wall tiles — supply | $760 |
| Tiling — labour (18 m² incl. walls) | $1,980 |
| Vanity + basin + tapware | $1,180 |
| Toilet suite | $480 |
| Shower screen (semi-frameless) | $720 |
| Painting & making good | $650 |
| Project management + 10% contingency | $1,430 |
| Total | $13,800 |
Frequently asked questions
How small is a "small" bathroom in Sydney?
Most renovators class anything under about 4 m² as small — typically an apartment bathroom, a powder room, or a second/kids bathroom in a freestanding home. The standard main bathroom in a Sydney house is usually 6–8 m².
Can I renovate a small Sydney bathroom for under $10,000?
Only as a cosmetic refresh — paint, re-grouting, new tapware, a new vanity and toilet, keeping the existing tiles and layout. The moment you strip back to the studs and re-tile, waterproofing and trade minimums push a full small reno to $10,000–$15,000.
How long does a small bathroom renovation take?
Usually 2–3 weeks for a full strip-and-replace, even though the room is small — the schedule is driven by trade sequencing and waterproofing cure time, not floor area. Cosmetic refreshes can be done in a few days.
Does keeping the same layout save much?
Yes — leaving the toilet, vanity, and shower in their existing positions avoids moving water and waste pipes, which can save $1,500–$4,000. Relocating fixtures is the single biggest discretionary cost in a small bathroom.
Why did my quote jump after demolition?
In older Sydney terraces and apartments, removing old tiles often uncovers rotten timber, failed waterproofing, or asbestos-backed sheeting that must be remediated by law. A 10% contingency on a small bathroom is sensible, 15% on anything pre-1990.
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