Bathroom Layout Decision Preparation Checklist

Sketch the room roughly and mark every opening — door, window, hatch — noting which walls face outside and which back onto another room.

A sketch made before any appointment gives a designer something concrete to react to, and it usually surfaces constraints the household stopped noticing years ago.

Note whether the ceiling runs level throughout, and mark where a slope, bulkhead or boxed-in section reduces the height you can stand under.

Sloped ceilings and boxed service runs often rule out a tall unit or an overhead shower position before any other decision has been made.

Record whether the floor sits level with the rooms next door or steps up or down at the doorway, and note anywhere that already feels uneven underfoot.

Floor levels drive decisions about thresholds, screens and whether a level-access shower is even worth discussing for this room.

Any change to floor build-up affects door clearance and thresholds; ask a qualified professional what your floor construction actually allows.

Photograph every boxed-in corner, exposed pipe and access panel, and write down what you believe sits behind each one and why you think so.

Owners often discover a stack inside a boxed corner only after a layout has been agreed, which forces a redesign at the least convenient moment.

Note which way the window opens and whether a screen, tall unit or fixture placed nearby would stop it opening fully or reaching its catch.

An openable window is often part of how the room clears moisture, so blocking it is a decision worth making deliberately rather than by accident.

Write down where the current heat source sits, roughly how it is fed, and whether you would want it in the same position in a new layout.

Heating position competes directly with towel storage and tall units, and it is one of the easiest things to overlook until the wall is already spoken for.

Note where the waste appears to leave the room and in which direction it heads, and ask what relocating it would involve before assuming a fixture can move.

Where waste leaves the room is usually the single biggest influence on which layouts are simple and which become a much larger piece of work.

Whether a waste run can be moved or extended is a question for a qualified plumber working to the requirements that apply where you live.

Mark the stack position if you can identify it, along with anything boxed around it, and list what you would like to change near it.

Fixtures nearest the stack tend to be the least disruptive to keep in place, which is useful context when you are weighing options.

Find the isolation valves serving the bathroom, note where they are and whether you can reach them, and record any that are stiff, hidden or missing.

Being able to isolate the room matters during the work and long afterwards, and a valve buried behind new tiling is a recurring regret.

List the switches, shaver points, lights and any other electrical items in the room, and mark which of them you genuinely use.

An honest list of what gets used stops the new layout from simply reproducing positions that never suited anyone.

What may be placed where in a bathroom is governed by local requirements; put every position to a qualified electrician rather than settling it yourself.

Ask a qualified professional whether the floor is solid or has a void beneath it, and record the answer alongside the date you were told.

How freely pipework can be rerouted often depends on what is under the floor, and owners are frequently told two different things by two different people.

Note which walls are shared with a bedroom, a stair or a neighbouring property, and flag those walls for discussion about noise and access.

A toilet or pump against a bedroom wall is a decision people regret quietly for years, and it is far easier to reconsider while it is still on paper.

Sound transfer between rooms and between properties may be subject to local requirements; raise it with a qualified professional rather than assuming.

Write down which side the door is hinged on, which way it swings, and whether reversing or rehanging it has ever been discussed in the household.

Door swing is easy to establish now and awkward to change once cabinetry, radiator and screen positions have been ordered around it.

Open the door slowly and note everything it comes close to, including towel rails, handles, the bin and anything that would be added later.

A door that clears the room today may not clear it once a rail, hook or wider handle is introduced by the new design.

Stand where you would stand to use each fixture in turn and note where your elbows, knees or head meet something solid.

This rough body test catches crowding that a scale drawing hides, and it gives you something specific to raise rather than a vague worry.

Decide whether two people ever need to be in the room together, and if so, note what they are each doing and where they get in each other's way.

Households often design for one user and then live with a room that fails every busy morning, which is a predictable and avoidable outcome.

Note where the bin, laundry basket and cleaning items currently sit, and whether any of those positions survive in the layouts you are considering.

These items always return to the room whether the layout allowed for them or not, and they are rarely drawn on anything.

Note how far you have to reach or step for a towel when leaving the shower or bath, and whether that route crosses the doorway.

Water on the floor between the shower and the towel is one of the most common everyday complaints in a newly finished bathroom.

Put the fixtures in order of how much you want each one moved, and write a sentence explaining the reason behind the top of that list.

An ordered list lets a professional tell you which of your wishes are straightforward and which single one is driving the whole piece of work.

Identify the one change that would make the biggest difference to how the room feels, and record it separately from everything else you want.

When constraints appear, this is the item you protect, and having named it in advance stops it being traded away in the moment.

Write down what you would accept keeping in place if moving a fixture turns out to be impractical, so a fallback exists before you need it.

Fallback positions decided calmly in advance are almost always better than ones decided on the spot with people waiting for an answer.

Decide and record whether the bath is negotiable, and note who in the household holds the strongest view about that and why.

Bath or no bath reshapes the entire layout, and leaving it unresolved tends to stall every other decision that depends on it.

Consider whether the toilet faces the door, sits alongside it, or is screened by the basin, and note which arrangement the household prefers.

Orientation affects how the room feels to a guest and how it works when the door is opened unexpectedly, yet it rarely gets discussed openly.

If the home has more than one room where washing happens, note which functions could move elsewhere and which must stay in this room.

Moving one function out of the room can release enough space to solve a layout that otherwise looks unsolvable.

Describe what happens in the room at its busiest, including who is in it, who is waiting, and what they are each trying to reach.

A written description of the busy period is more useful to a designer than a list of features, because it explains what the layout has to survive.

Note where wet towels actually end up now, as opposed to where they are supposed to go, and how many need somewhere to hang at once.

Towel provision is routinely designed for the display photograph rather than for a household drying several towels on the same morning.

Note where you currently put down a phone, a razor or a bottle while using the basin, and whether that surface exists in the new layouts.

The absence of a small, dry surface beside the basin is one of the most common complaints about otherwise well-finished bathrooms.

Sit on the toilet and note what you can and cannot reach without standing, including the roll holder, the door handle and any shelf.

Reach from the seated position is easy to check now and much harder to change once fixings have been set into finished tiling.

Note which parts of the current room are difficult to clean, especially behind the toilet, beside the bath and under the basin.

Layouts that create a permanently grubby gap are hard to love, and the problem is visible now if you look for it deliberately.

If anyone is bathed or assisted in this room, note where the helper has to stand and kneel, and how much space that actually needs.

Assisted use changes the space required around a bath or shower considerably, and it is often mentioned too late to influence the layout.

Stand at the open door and write down what your eye lands on first, then note what you would prefer to see there instead.

First sight lines are decided by fixture placement, so this is a layout observation even though it feels like a question of taste.

Note what the current mirror reflects when the door is open, and whether any proposed mirror position would reflect the toilet or the doorway.

A mirror that reflects the toilet into the hallway is a common and entirely avoidable outcome of positioning a mirror on the drawing alone.

Note whether the window is overlooked, from where, and how the household currently handles that, including any obscured glazing already fitted.

Privacy handling affects whether the window can be left uncovered, which in turn affects daylight and how the layout can use that wall.

Note whether the door has a lock, who in the household needs to use it, and whether anyone needs to be able to release it from outside.

Lock arrangements affect door and handle choices, and households with children or older relatives often have firm views once asked.

Note which rooms are close enough to hear the bathroom in use, and whether that influences where the toilet or shower should sit.

Sound transfer is a layout consideration long before it becomes a materials one, and it is far easier to design around than to fix later.

Note what can be seen from the hallway or landing when the door is left ajar, which is how the door usually sits between uses.

Doors spend most of their life partly open, so the ajar view is arguably more important than the closed one and is almost never considered.

Write down each layout option you are weighing and, beside it, the single thing that option gives up compared with the others.

Naming the sacrifice beside each option is what turns a set of sketches into a decision you can actually make and later explain.

Split your wishes into things you will not trade and things you would trade, and mark which household member holds each firm view.

Professionals can work quickly with a clear list of fixed points, and disagreements are much easier to resolve before drawings exist.

Agree in writing who makes the final call when the household disagrees, and note how you want that decision to be communicated.

Layout decisions arrive quickly once work starts, and an agreed decision-maker prevents changes being made by whoever happens to be at home.

List every question that came up in this checklist that you could not answer yourself, and bring that list to your first appointment.

An explicit list of unknowns is the most useful thing an owner can bring, because it directs the conversation to what actually matters.

Keep dated notes of what you are told about drainage, floors and walls, recording who said it and whether they had seen the room.

Advice given over the phone and advice given on site often differ, and a dated record makes that difference visible rather than confusing.

List anything you have already bought or committed to for this room, including anything inherited or stored, and note its rough size.

Items bought in advance quietly constrain the layout, and designers need to know about them before rather than after they draw.