The bathroom in a converted Bayswater flat is almost always in a room that was never meant to be one. When these Victorian houses were divided, bathrooms had to be found — carved out of a bedroom corner, built into a return, put in a windowless internal box next to the hall, squeezed under a staircase, or extended into a rear closet wing. They went where the drainage allowed and where the space could be spared, not where anyone would have chosen. That original decision, made decades ago by someone who is long gone, still governs everything you can do with the room today.
Three things decide your bathroom before you choose a tile
1. The stack, and how far you are from it
Your waste has to reach a soil stack, downhill, at a consistent gradient. In these buildings the stack is communal, usually at the rear, and its position is effectively immovable. If your bathroom sits close to it, you have options. If it does not — and in flats where the bathroom was carved into an internal space, it often does not — your layout is constrained by the run. Moving a WC even a metre can be the difference between a gravity fall and a pump. The basin and the shower are relatively forgiving. The WC is not, and it is nearly always the fitting that dictates the plan.
Worth knowing: in this stock the stacks themselves are old and much-patched, and a slow-draining new bathroom is sometimes a stack problem rather than an installation problem. That distinction matters commercially, because a communal stack is typically the freeholder's responsibility, not yours. Our Bayswater plumbers establish which it is before anyone quotes you for fixing the wrong thing.
2. Whether the room has a window
A great many W2 conversion bathrooms are internal — no window, no external wall, sometimes no obvious route to one. Ventilation then becomes a design problem rather than a fan on a wall. Bathrooms engage Building Regulations Part F for ventilation, and an internal room needs mechanical extraction ducted to outside. The question is where the duct goes: through a ceiling void, along a corridor, up through a cupboard, out at the rear. Every route has consequences for ceiling height, for boxing, and sometimes for consent — because if the terminal appears on an elevation, conservation area controls may apply, and Bayswater's stucco frontages attract particular attention.
The failure mode here is common and worth naming: a fan fitted with a long, kinked flexible duct that runs uphill into a void and effectively vents into the ceiling. It hums, it satisfies nobody's inspection, and the moisture stays in the building. Ducting is designed at survey, not improvised at second fix.
3. What the floor is doing
These are timber floors, over a century old, spanning between walls that have been altered repeatedly. They move. Tile and stone do not. Every failed bathroom floor in a converted flat is the same story: tiles laid on a deck that flexed. Getting it right means assessing the joists and deck, stiffening where necessary, decoupling where appropriate, and tanking the wet zones properly. It also means depth — build-up plus underfloor heating plus levelling plus stone adds height, which affects the door, the threshold, and the ceiling of the flat below if anything has to come out of the void.
And it means one more thing that is specific to stacked flats: everything you do here has a downstairs. A bathroom failure in W2 is not a wet floor, it is a claim, someone else's ceiling, and a very difficult conversation with a freeholder. Which is why the tanking stage is the one we will not shorten, however invisible it is.
What the building imposes
Converted Bayswater houses have no porter and no lift. They have a narrow staircase with a return at every half-landing, a communal hall that is somebody's front door, and a street where loading is difficult and controlled. Everything for your bathroom — and everything from it — goes up and down those stairs by hand.
- Strip-out is the hard part. A cast iron bath, a tiled floor's debris and old boxing weigh a great deal and there is no lift. This is planned as its own operation, with protection down the full route.
- The common parts stay clean. Other residents live with your project. Protection of the hall and stairs, and clearing at the end of each day, is part of the job.
- Loading has to be timed. W2 kerbside is not casual. Deliveries and waste removal are scheduled, or they become somebody's complaint.
- Water off can mean the building off. If your isolation is at a communal stopcock, going off needs notice to neighbours or the agent, not a spanner and optimism.
- Neighbours hear everything. Timber floors and old party walls transmit. Telling the building what is happening and when it stops prevents most of the friction.
Consent — settle it before you order anything
In most leases, a bathroom refurbishment is not entirely yours to decide. Moving soil or waste connections, altering anything tied into shared services, structural change, and sometimes floor finishes typically require freeholder or managing-agent consent — often a formal licence to alter — and some leases carry acoustic requirements. Requirements vary considerably between leases, so read your own and speak to your agent rather than relying on what another flat did. Bayswater's conservation area designation adds planning control over external alterations, which reaches bathrooms whenever a new vent or terminal is proposed on an elevation; where a building is listed, listed building consent is typically required for works affecting its special character. And if the freeholder proposes building-wide works — a stack renewal, for instance — Section 20 of the Landlord and Tenant Act 1985 sets consultation requirements for qualifying works over £250 per leaseholder. Confirm all of it with your lease, your managing agent or the council.
Get consent moving early. Nothing delays a W2 bathroom like a licence to alter that was started after the tiles arrived.
Landlord and short-let bathrooms: the turnaround job
A large share of W2 bathroom work is not a homeowner's dream scheme. It is a landlord or agent replacing a tired bathroom in a void between tenancies, on a deadline, in a flat that has to be lettable on a specific date. That is a different brief and it deserves different advice.
First: keep the layout unless there is a reason not to. Moving fittings in a converted flat means drainage work, which means time and risk, which is exactly what a turnaround cannot absorb. A same-position refit is faster, cheaper and far more predictable.
Second: specify for wear, not for photographs. Let bathrooms take abuse from people who did not choose the fittings. Robust, serviceable, replaceable components beat delicate ones, and a fitting that needs a specialist part in three years is a fitting that will sit broken.
Third: fix the invisible things while the room is open. Isolation valves you can actually reach. A properly ducted extract. Sound tanking. Those are what stop the reactive calls that eat a letting margin — and in a stacked building, what stop a leak becoming a claim against you.
Fourth: book the date honestly. A bathroom that stops for a missing item stops entirely, so materials are confirmed on site before strip-out, not ordered during it. If you run a portfolio and want this handled as a repeatable process rather than a scramble each void, see working with us as an agent and planned maintenance.
What drives the price
Bathroom refurbishment starts from £2,800. Where any particular room sits above that comes down to a short list, and most of it is within your control: whether waste and supply positions move; how much floor build-up the specification demands; whether the room needs a ducted extract route designed and built; the material — large-format porcelain, marble and mosaic are three different jobs in time and cutting, as the tiling page explains; whether anything structural is involved; and whether consent is required. What you get from us is a fixed, itemised quotation before any work starts — not a range that drifts.
How it runs
Survey first, resolving drainage, ventilation and floor before design. Fixed quote. Consent and access arranged — agent, neighbours, loading, isolation. Materials on site. Then protection and strip-out; first fix plumbing and electrics, set out and tested before they are buried; substrate and levelling; tanking, properly set; tiling; second fix; commissioning; and certification, since electrical work falls under Part P with installations to BS 7671, alongside Part F for ventilation and Part G for sanitation and hot water. Our Bayswater electricians handle the certified side within the same scope, so there is one contact rather than three.
If the bathroom is part of a wider scheme, see refurbishment in Bayswater. Broader detail is on the bathroom refurbishment page, and the rest of our W2 work on the Bayswater area page. Send photos of the room and we will tell you what it really involves — including if the honest answer is to leave the layout where it is.