Bathroom design in Bromley starts with a measured survey, not a mood board. A vetted local fitter records the room, the soil stack, pipework, water pressure and door swings, then works out which layouts are possible and what each one costs to build. Our referral is free, and the design advice comes as part of the quote.
Layout Advice or CAD Design: What Bathroom Designers in Bromley Offer
Bathroom design comes in two forms, and both lead to the same fitting and plumbing work. Layout advice is part of a fitter’s survey: measuring the room, checking the services, suggesting fixture positions and quoting for the build. CAD design is a separate service with dimensioned plans, 3D views and a product list, sometimes for a fee. Ask which you’re getting.
| Layout advice from the fitter | CAD design service | |
|---|---|---|
| What you get | Measured survey, feasibility checks, suggested positions, quote | Dimensioned plans, rendered views, product specification |
| Who provides it | The fitter who’ll build it | A showroom, designer or the fitter’s design partner |
| Cost | Included in the survey and quote | Free, paid, or credited against an order, depending on the provider |
| Best for | Refits and renovations where the layout mostly stays | Complex layouts, extensions, loft en-suites |
What a Measured Survey Records in a Bromley Home
A proper bathroom survey records the room’s dimensions, the door and window positions, where the soil stack and waste pipes run, the water supply and pressure, existing ventilation, and anything irregular such as a boxed-in pipe or a sloping ceiling. Those fixed points decide the layout; the suite and tiles come afterwards.
- Soil stack: the main waste pipe usually fixes where the toilet can go. Moving it means a new drainage route with the right fall, and often a floor opening.
- Water pressure and hot water: a combi boiler suits a thermostatic mixer; a gravity-fed system may need a pump for an upstairs shower; an unvented cylinder handles rainfall heads. Check before choosing the shower.
- Door swing and circulation: enough space to open the door, use the basin and step out of the shower without a squeeze.
- Ventilation: where an extractor can vent to the outside, which matters in flats and in conservation areas.
- Plumbing and heating: the plumber checks whether the boiler and pipework can serve the new layout, especially a second shower or a bath moved across the room.
- Floor structure: timber floors in older homes limit wet room formers and heavy stone tiles without strengthening.
- Whether it’s a refurbishment or a full bathroom renovation: keeping the layout keeps the plumbing simple; moving fixtures turns a refit into a bigger installation.
Bromley’s housing sets the pattern. Interwar semis are about 30% of the stock, and many still have a small bathroom with a separate WC. Combining the two, or adding a loft en-suite, is the classic local design project. In Victorian terraces around Penge and Beckenham, the challenge is usually uneven walls and a bathroom squeezed into a former bedroom or back addition.
Design Choices That Change the Price of a Bromley Bathroom
The most expensive design decisions are the ones that move things. Relocating the toilet means a new soil pipe route; a wall-hung toilet needs a support frame, a concealed cistern and boxing; a wet room needs the whole floor tanked and formed to fall. Keeping the layout and spending on finishes usually costs far less than moving the plumbing.
| Design choice | What it involves | Cost effect |
|---|---|---|
| Keeping the existing layout | Like-for-like positions, minimal first fix | Lowest |
| Wall-hung toilet or basin | Frame, concealed cistern, stud wall or boxing, extra tiling | Moderate increase |
| Moving the toilet | New soil pipe run at the correct fall, floor opening, making good | High increase |
| Bath to shower conversion | Removing the bath, new tray or former, screen, waterproofing | Moderate |
| Wet room | Full tanking, formed falls, linear drain, more tile cuts | Higher than a walk-in shower |
| Underfloor heating | Electric mat or wet system under the floor tiles, plus Part P electrics | Moderate increase |
Because Bromley is a hard water area, design in easy cleaning too: glass with a protective coating, thermostatic valves with accessible cartridges, and fewer ledges for limescale to collect.
Want to see how a design is built? See bathroom installation. Ready for a survey? Call 020 7946 0123.
Designing Bathrooms for Bromley’s House Types
Different Bromley homes need different design answers. A small interwar bathroom needs storage and a shower that doesn’t fight the door. A Victorian house needs period proportions respected and services routed around original fabric. A loft conversion needs headroom and a waste route. A home with an older occupant needs level access and future grab rails planned now.
- Small bathrooms in 1930s semis (West Wickham, Hayes, Petts Wood): compact basins, a shower over the bath or a walk-in shower, wall-hung storage, and a combined WC if the stack allows.
- Victorian and Edwardian houses (Beckenham, Shortlands, Bickley): larger rooms, freestanding baths where the floor can take them, and vents and pipes kept off street-facing walls in conservation areas.
- Loft en-suites: shower placed under the ridge for headroom, a waste route to the stack, and a rooflight or dormer that may need planning consent in Article 4 areas such as Petts Wood.
- Designing for later life: level-access showers, reinforced walls for future grab rails, wider doors and slip-resistant floors. See disabled bathrooms.
Regulations That Shape a Bathroom Design in the London Borough of Bromley
Design decisions trigger regulations. Lights, fans and shaver sockets must suit the electrical zones and be fitted by a registered electrician under Part P. Any new bathroom needs extract ventilation under Part F. External changes such as new vents, flues or rooflights may need consent in one of Bromley’s 47 conservation areas or an Article 4 street.
- Electrical zones: zone 0 (inside the bath or tray) needs IPX7, extra-low voltage; zones 1 and 2 need IPX4; ordinary sockets must be 3 m from a bath or shower. GOV.UK: building regulations approval
- Ventilation: an extractor discharging outside, sized for a bathroom. Approved Document F
- Hot water safety: the supply to a bath should be limited so the water delivered doesn’t exceed 48°C. Approved Document G
- Conservation areas and Article 4: check with Bromley Council before agreeing anything on the outside of the house.
How to Compare Bathroom Design and Installation Quotes in Bromley
Compare design quotes on what’s included: a measured survey, a drawn layout or CAD plans, product specification, and whether the design fee is credited if the same fitter installs. Then compare the build side the same way as any installation: strip-out, plumbing, electrics, waterproofing, tiling, second fix, VAT and payment stages.
- Is the design layout advice or a CAD service, and is there a fee?
- Does the quote show what moving a fixture adds?
- Are products specified by name, or “to be chosen”?
- Have water pressure and ventilation been checked?
- Is the electrical work priced and certified under Part P?
For what each design choice typically adds, see our bathroom costs guide, and for the build itself, bathroom installation in Bromley.
Bromley Homeowners’ Bathroom Design Questions
Can I move the toilet in my bathroom?
Usually, but it’s the costliest change. The new position needs a waste route to the soil stack with enough fall, which can mean lifting the floor. The survey will say whether it’s practical.
Is bathroom design included in the quote?
Layout advice from the fitter normally is. Full CAD plans may be a separate service with a fee, so ask before you assume.
Where should the shower go in a small bathroom?
Where the waste can reach the stack and the door can still open freely. A walk-in shower along the short wall, or a shower over a shorter bath, often works best in a 1930s semi.
How do I choose a bathroom designer or fitter in Bromley?
Ask what the design deliverable is (layout advice or CAD plans), whether the same business installs, how moving fixtures is priced, and for two recent local jobs you can see. A designer who talks about the soil stack before the tiles is thinking about your room, not a showroom.
Can the design allow for future mobility needs?
Yes. Ask for level access where possible, reinforced walls where grab rails might go, a wider door and slip-resistant flooring. It costs little now and saves a second renovation later.
Last reviewed: 1 October 2026.