A Pimlico kitchen project usually starts not with a footprint but with where the waste and the extract can honestly go. In a mansion-block flat or a maisonette the kitchen sits on a concrete or timber floor over another dwelling, and the soil and waste stack is fixed in a riser or against a party wall. Moving a sink, dishwasher or washing machine any distance means re-grading the waste run to keep a continuous fall to that stack, and a long, shallow horizontal run is where relocations quietly fail — either they will not self-clear or they demand a raised floor that eats head height. We survey the existing stack, riser and slab first, because the position and invert of that stack set the real range of positions a new kitchen layout can actually occupy, and everything else is designed around them.
Extract is the second constraint that decides the plan. A kitchen pushed away from an external wall — common when a galley is relocated into the middle of a converted terrace or a deep mansion-block flat — needs a route for cooking extract to an outside face or an existing ventilation riser, with recirculating filtration used only where a duct genuinely cannot be run. Ducting has to cross ceilings or drop into bulkheads without pulling head height below what the room can carry, and it should keep bends to a minimum so the fan can actually shift the air. Any external terminal lands on an elevation that, in a conservation area, is assessed for appearance, so we resolve the duct route and the terminal position on the drawings before the layout is fixed, not after the units are chosen.
The floor is where a reworked kitchen meets the flat below. Relocating a kitchen usually means new wet areas and appliances over a neighbour's ceiling, so the build-up has to control both impact and airborne sound and maintain the fire separation between the two dwellings. That typically means an acoustic floor layer, resilient battens or a floating screed, careful detailing around the new soil and supply connections, and reinstated fire-stopping wherever a pipe or duct passes through the compartment floor. Appliances that vibrate or drum, like a dishwasher or a washing machine, need particular attention at the point they meet the structure. In a leasehold flat this is not optional refinement; it is the difference between a lease-compliant kitchen and a running dispute with the household below.
Almost every Pimlico flat kitchen move is gated by consent from the freeholder or managing agent, not by the council. Relocating wet areas, penetrating a compartment floor, altering a riser or fixing a terminal to a shared elevation are exactly the works a lease reserves to the freeholder, and they are typically authorised through a Licence to Alter. That process wants dimensioned drawings, a method statement and often a structural or acoustic note, and it runs on its own timescale alongside any building-regulations approval, so it needs starting early rather than treating it as a formality at the end. We prepare the drawing set the freeholder's surveyor will actually assess, showing the floor build-up, the services routes and any structural openings, so the consent is granted on evidence rather than stalled by repeated requests for missing information.
For the minority of Cubitt-era stucco terraced houses, a kitchen can take a different form: a subordinate single-storey rear addition, or a reworking of the existing rear rooms into an open kitchen-dining space. Here the constraints move to the protected rear stucco elevation, the shallow central-London garden and neighbour daylight, which Westminster assesses using the established BRE tests. A modest projection with a restrained, subordinate roof — read against the rear character rather than competing with it — is more defensible than an ambitious footprint that overshadows a neighbour or over-develops a small plot. Where excavation for foundations comes within three or six metres of a neighbour's structure, or where the work builds on the line of junction, the Party Wall etc. Act 1996 runs alongside planning and is programmed early so notices do not delay the build.
The through-line for both flats and houses is coordination rather than a signature gesture. We measure the home, establish where drainage, extract and structure allow the kitchen to sit, and design a layout that respects those givens while delivering the plan, joinery, lighting and services coordination the room needs to feel generous. From there we produce the building-regulations drawings that cover structure, drainage, ventilation and fire separation, the Licence to Alter set the freeholder requires, and any planning submission an external change triggers — keeping the internal and external consents on separate tracks so neither holds up the other. On this stock the honest kitchen is the one whose services were resolved before the cabinetry was ever drawn, and that is the sequence we work to. We do not promise approval; we make the case as strong as the constraints allow.