Bathroom Design in Croydon: Plan the Room Before You Buy the Suite

Bathroom design in Croydon starts before you choose a suite

A suite is the output of planning, not the first purchase. Most design problems we are asked to fix began with a bath, vanity or enclosure bought because it looked right, then found to clash with a waste pipe or a door. Our Suite-Last method runs six decisions in a fixed order, and each one narrows or widens the next.

Design is included when we install a full bathroom or carry out a bathroom renovation. The homepage explains the three questions behind every quote; this page is about the second of them, site, applied before anything is bought.

The six decisions in the right order

The order matters because each decision locks something in. The existing services decide which layouts are cheap and which are expensive; the layout decides the fixture dimensions; the fixture dimensions decide the tile layout, the niche positions and the lighting. Reverse the order, buy the suite first, and every later decision becomes a workaround.

In practice the six decisions are: measure and photograph; map services and the ventilation route; test movement and door swings; choose fixture categories, then exact products; agree finishes once the plan works; and turn the plan into a quote. We do the first three at the free survey.

Survey the existing room before designing it

A design that ignores the existing room is a drawing, not a plan. Our survey records the measurements a catalogue needs and the constraints it cannot show: wall lengths and ceiling height, the door position and swing, the window, the radiator, the boxing that hides the soil stack, and every visible pipe. We photograph all of it.

We also ask how the room is used. Who showers when, whether two people need the basin at once, where towels dry, whether laundry hangs in there, where the cleaning things live, and whether anyone in the household finds the current room difficult. Those answers decide the layout more than the floor area does.

A typical failure we are asked to rescue: a 1,700 mm bath ordered for a 1,700 mm wall, before anyone noticed the soil stack boxing takes 150 mm of it. The bath goes back, the restocking fee is paid, and the design starts again. The survey is free because it prevents exactly that.

The Croydon property checks that can change the plan

Where the property sits in the borough rarely changes the design. What the property is changes it a great deal, so we settle four questions before drawing. First, tenure: leaseholders usually need the freeholder's or managing agent's written consent where water, drainage or shared services are affected, and the converted houses of Addiscombe make this routine. Second, Building Control: Croydon Council treats a new bathroom as work that can go through a building notice, while refurbishing an existing one is treated differently, and our quote states which route applies.

Third, heritage: a listed building needs listed building consent for changes to historic fabric, and an Article 4 direction in a conservation area (Croydon Council names Chatsworth Road, The Waldrons and Kenley Aerodrome) can remove permitted development rights for external changes such as a new flue or vent. An internal refit is not automatically caught. Fourth, access: parking suspensions in a controlled parking zone need at least five working days' notice (Croydon Council), which goes into the programme.

Put services and safety ahead of the layout

Every layout we draw passes a hidden-services check before a looks check. The toilet is the anchor: keep it near the soil stack and drainage stays simple; move it and you are into new pipe runs, falls, floor build-up and boxing. Basins and baths move more easily, but pressure, hot water and the fan route still have to be confirmed.

Ventilation, water and electrical decisions that cannot be decorative

A rainfall shower, a lit mirror and a concealed valve each look like style choices and each is a services decision first. The shower needs the pressure to feed it and a fan sized to clear the extra steam. The mirror needs a circuit in the right zone. The concealed valve needs wall depth and an access route for the day it fails.

Approved Document G (GOV.UK) covers water supply, hot water safety, sanitation and water efficiency; it is why we fit thermostatic control on bath fills where the regulation applies and specify flow rates rather than guess them. Approved Document F covers ventilation, and our quote states where the fan discharges. Bathroom electrical zones restrict what can be fitted near the bath or shower; our registered electrician maps them for your actual layout rather than applying a rule of thumb.

Choose a layout that works at 7am, not just in a showroom

A layout is tested by two people using it at once on a weekday morning, not by a rendered image. We run a four-part circulation test on every plan: door (opens without hitting the toilet or screen), body (room to stand, sit, bend and dry at each fixture), cleaning (every corner reachable) and maintenance (trap, valve and cistern reachable without removing tiles).

The main layout choices are a bath with a shower over it, a separate bath and shower, a walk-in enclosure, a wet room, or a compact shower room with no bath. Each has a page of its own: walk-in showers, wet rooms, bath to shower conversion and en-suites and cloakrooms. The design question is which one the room, the services and the household support, and the circulation test usually answers it.

Small bathrooms, en-suites and cloakrooms

A compact room, like many first-floor bathrooms in Selsdon semis and Coulsdon terraces, is a constraint-management exercise, not a shopping list of space-saving products. We start with the room's main job: a guest cloakroom, a daily en-suite, a family bathroom or a room built around someone's mobility. Then we measure circulation before we consider corner basins, slimline furniture or a sliding door, because a smaller basin that leaves the door hitting the toilet has solved nothing.

Two things to be wary of. Wall-hung storage and recessed cabinets free floor space only where the wall construction and the services behind it allow; a recess into a wall carrying the soil stack is not available. And removing storage to gain space moves the problem to the landing, so every compact design we draw has a storage plan.

Select fixtures by fit, maintenance and supply requirements

A fixture is suitable when it fits the space, works with the services, can be cleaned and repaired, suits the person using it and arrives when the programme needs it. Looks come after all six. We use the matrix below for every product on the specification, and nothing is ordered until the row is complete.

Published postcode summaries class the borough's water as very hard, so finish care and scale protection sit in the matrix rather than being an afterthought.

When a beautiful product choice becomes a design problem

Three short cases we see often. An oversized vanity unit: it fits the wall, but the drawers hit the door and the trap sits where the drawer runners need to be. An unsuitable shower: a large rainfall head on a gravity-fed cylinder gives a trickle, and the fix is a pump that was never in the budget. An inaccessible concealed cistern: a frame tiled in with no service panel, so the first flush valve fault means breaking tiles.

All three are hard to reverse because they are decided at first fix, the stage when pipework, cables and frames are fitted before the walls and floors are closed. Anything decided after first fix is expensive to change, which is why we confirm model numbers before the quote is final and before anything is ordered.

Add style after the room has earned it

Style is the performance layer on a layout that already works. Once fixture footprints are confirmed we choose tile scale, grout colour, lighting and hardware against four practical tests: how much light the surfaces reflect, how much grout there is to clean, how slippery the floor is when wet, and how the scale of the tile suits the room.

Large-format tiles mean fewer grout lines and faster cleaning but need a flatter substrate and more cuts in a small room. Light surfaces and a mirror across from the window make the most of daylight. Layered lighting means a bright task light at the mirror, softer general light, and a feature light that can be left off. We avoid trend claims because a bathroom lasts longer than a trend.

Plan for accessibility, future use and household change

An accessible bathroom is designed around a specific person and room, not a standard bathroom with grab rails added. If anyone in the household has or may develop limited mobility, the decisions are made now: whether a level-access shower is possible later, where a seat and grab rails could fix to something solid, and whether the door could be widened.

Designing for that at the outset costs little and avoids a second strip-out later. We work from an occupational therapist's specification where there is one, and the accessible bathrooms page covers the Disabled Facilities Grant route. Part M of the Building Regulations is written for new dwellings and does not apply automatically to a private refurbishment, so we design to the person rather than to a generic standard.

Turn the design into a build-ready brief

The design ends as the first part of our quote. It records the dimensions and photographs, the current problems, which services move and which stay, the fixture shortlist by model number, the access constraints and the programme, each line marked as included, excluded or subject to survey. The same team designs and fits, so nothing is lost between drawing and room.

If you want to compare our design with someone else's, ask them the questions below first. Every one asks for a verification, not a reassurance, and the bathroom costs guide explains how the answers move a price.

Questions to settle before anyone buys the suite

1. Can the proposed toilet position use the existing drainage, and if not, what does the new run involve?
2. Is the chosen shower compatible with the property's water system and pressure, measured rather than assumed?
3. What has to be fixed at first fix, and what can still change after it?
4. Where does the extractor discharge, and how does the duct get there?
5. Which products, measurements and assumptions must be confirmed before ordering?
6. Who handles permissions, Building Control notices and the electrical certificate?