The question is rarely one bathroom
Pymble is large family housing on deep blocks — four bedrooms, generous living areas, established gardens. And frequently one main bathroom, built to a standard that assumed a very different household.
That mismatch is the actual problem, and it is why the most useful conversation here is usually not "how do we renovate this bathroom" but "how many bathrooms should this house have".
Adding rather than only replacing
Two additions do most of the work in these houses.
An ensuite off the main bedroom. These rooms generally have the floor area to give up two and a half to three square metres, and the ensuite page covers the design constraints — door swing, shower entry and waste position are the three decisions that make or break a small room.
A second bathroom from an underused room. A fourth bedroom nobody sleeps in, or an oversized hallway, converts well. In a four-bedroom house with one bathroom, this changes daily life more than any finish upgrade.
Both come down to the same feasibility question: how far does a new waste have to travel to reach an existing stack, and is there fall available to get it there? On the suspended timber floors typical of Pymble, the answer is usually yes — which is exactly what is not true in the slab-floor apartment stock further south.
Doing several rooms at once
If more than one bathroom is coming, doing them together is meaningfully cheaper per room. Trade attendance, the skip, the waterproofer's set-up and the tile delivery are largely fixed costs that do not double when the second room is added.
Where the money goes sets out why labour dominates a bathroom quote, and the same logic is what makes the second room disproportionately good value.
The trade-off is practical rather than financial: losing two bathrooms at once in a full household is a real disruption. Worth planning around rather than discovering.
Heritage and the planning certificate
Parts of Pymble sit within Ku-ring-gai conservation areas, with individually listed properties among them. For internal wet-area work this is usually not an obstacle, but the distinction between a conservation area and an individual listing matters — see the heritage guide.
Get a planning certificate before the design is locked. It is inexpensive and it answers the question properly.
What to expect on strip-out
The original bathroom in a house of this era, particularly one partially updated in the 1970s or 1980s, commonly reveals deteriorated framing, old cast-iron waste and asbestos-containing sheeting from the later work. Asbestos in old bathrooms covers the process and who is licensed to handle it.
What it costs
Pymble jobs sit toward the upper bands, because the rooms are larger and the specification tends to follow the street. A main bathroom with a layout change runs $25,000–$40,000 and frequently above; an added ensuite $15,000–$28,000. See the 2026 cost bands.
Nearby
We also work in Gordon, Killara and St Ives, plus Wahroonga and Turramurra.
Call 02 4602 1201 or send the room details through.
Frequently asked questions
Is it worth adding a second bathroom in Pymble?
Frequently, yes. These are large family homes, often with four bedrooms and a single main bathroom, and the mismatch is the real problem. Adding a second bathroom or an ensuite usually does more for how the house lives — and for its saleability — than an expensive refit of the existing room.
Where does a new bathroom usually go?
Off the main bedroom as an ensuite, or into an underused fourth bedroom or oversized hallway. The determining factor is always the drainage route: how far a new waste has to travel to reach an existing stack and whether fall is available. On the suspended timber floors here, the answer is usually workable.
Should I renovate all the bathrooms at once?
If the budget allows, it is considerably cheaper per room. The trades are already on site, the skip is ordered, the waterproofing is being done and the tiles arrive in one delivery. The trade-off is losing multiple bathrooms simultaneously, which matters in a full household.
Do heritage controls apply in Pymble?
In some streets, yes — Ku-ring-gai has conservation areas through parts of the suburb and individually listed properties among them. A planning certificate settles it. For internal wet-area work in a conservation area it is usually not an obstacle.