Choose the arrangement around reach and movement
Assess the room with a person using each fitting. There should be a sensible approach to the basin, a practical route into the bath or shower and a place for towels within reach. The door's movement belongs in that exercise, together with storage opened in its normal position. A layout that fits dimensionally can still be uncomfortable if each activity requires moving around another fitting or leaving everyday items outside the room.
Discuss who uses the bathroom and any particular access requirements that the design should address. The arrangement may need to serve several people or support a quieter, more private routine. Compare the existing layout with alternatives before assuming every fitting should move. Sometimes the useful improvement is a better-sized product or a change to storage; sometimes it depends on a wider rearrangement. The chosen scope should be justified by how it improves use, not by the amount of change shown on the plan.
Find out what the existing installation can support
Have the relevant trades assess water, drainage, electrical and ventilation arrangements for the proposed fittings. Existing operation alone does not establish suitability for a different product or a new position. Record any concealed routes that need confirmation and identify the effect of shared systems in an apartment. We coordinate those findings before the room is specified in detail, keeping technical uncertainties visible rather than building the design around an assumed connection.
Review wall and floor construction where it affects fixing, levels or the installation of wet areas. The depth available beneath a finish can influence the proposal significantly. If the scheme includes new equipment, consider its access for maintenance and replacement as well as its initial installation. The resulting drawings should show a coordinated room, including the practical space required by its systems, rather than an attractive arrangement that leaves the installer to find somewhere for essential components.
Resolve the wet-area details before tiling
The substrate, waterproofing, outlets and finishes need to form a compatible assembly. Obtain the relevant product requirements and identify the inspection points before work is covered. Changes of plane, penetrations and junctions with fittings should be described clearly. We treat these details as part of the bathroom design because a surface pattern cannot compensate for an unresolved connection behind it.
Agree tile setting-out with the actual room dimensions and the positions of controls, niches and edges. Review awkward cuts before installation, particularly where the visual pattern meets a small wall or retained opening. Samples should be assessed with the lighting and other selected materials. The specification should also address cleaning and care, so the owner understands the implications of a textured surface, natural material or specialised finish before it becomes a permanent part of the room.
Consider the building beyond the bathroom door
For work in an in-scope higher-risk building, government guidance identifies a particular building-control route overseen by the Building Safety Regulator, with exemptions and other provisions requiring assessment. The property and works should be classified appropriately before construction. Southwark's conservation records are a separate consideration where the proposal affects designated buildings or their setting; neither process should be inferred simply from the fact that the project is a bathroom.
In practical terms, establish the building's requirements for access, shared services and protection of communal areas. Check the route for bringing in fittings and removing materials. If alterations affect retained features, obtain suitable advice and show their treatment in the scope. These arrangements can influence how the work is sequenced, particularly in a flat where the room's internal boundaries do not correspond to ownership of every pipe, wall or ventilation route passing through it.
Sources: GOV.UK: building control approval for higher-risk buildings · Southwark: conservation-area register
Inspect the complete room and document access
Review the installed fittings in operation and check the movement around them. Inspect finishes and accessible connections against the agreed specification, recording local adjustments precisely. The review should include the door, storage and ventilation controls as well as the principal sanitary fittings. This helps confirm that the room works as a coordinated arrangement rather than as a set of individually installed products.
Provide the homeowner with relevant operating and care instructions and identify where equipment can be reached. Access panels should remain usable after adjacent joinery or decoration is complete. Retain the selected product information and the relevant installation records for concealed work. A clear handover makes later maintenance easier and helps distinguish an equipment issue from a surface repair, without requiring the owner to reconstruct the bathroom's hidden arrangement from memory.
Before work begins
Bathroom renovation in Borough & Bankside: questions
Can a small bathroom include useful storage?
Storage should be considered with the layout from the beginning. Identify the items that need to remain in the room and test their positions against movement and access to fittings. Purpose-made furniture can help where appropriate, but it must preserve the clearances and maintenance routes required by the installation rather than occupy every spare gap.
Is moving the toilet a simple layout change?
Its feasibility depends on drainage, construction and other technical requirements, so the proposed position needs assessment before it is adopted. In an apartment, shared systems may also be relevant. We would coordinate the appropriate checks and show the resulting arrangement, rather than treat the ability to place a symbol on the drawing as evidence that the connection is practical.
When should tile layouts be agreed?
Once reliable room dimensions and fitting positions are available, review the setting-out before installation. Consider edges, controls, niches and changes of plane together. This allows awkward junctions to be resolved on the drawing and helps the selected finish support the room's proportions instead of leaving the final pattern to a series of on-site guesses.
Will an apartment bathroom always follow the same approval route?
No. The building and the precise work determine the relevant process. Government guidance distinguishes in-scope higher-risk building work from exemptions and other arrangements. We would have those criteria assessed alongside the building's management requirements before proceeding, keeping the different decisions clear rather than assuming a single rule applies to every flat.
How can concealed valves remain accessible without dominating the room?
Coordinate their position and required access with the fitting and joinery design. A panel can be visually discreet while still being identifiable and removable when needed. We would record its location and the equipment it serves, so future maintenance does not depend on damaging finished surfaces to discover how the installation was arranged.
Official sources
GOV.UK: building control approval for higher-risk buildings · Southwark: conservation-area register
Sources checked on the dates recorded in the source register, most recently 5 November 2026. Maps, list entries and directions must be checked for the individual property and proposed work.