A refurbishment in St James's is defined by two things at once: tenure and heritage. Most homes here are leasehold flats or estate-managed properties in older buildings, so the lease sets what a leaseholder may alter and reserves the structure and external envelope to the freeholder. Layered on top, many of these buildings carry listed or heritage-sensitive fabric, so the interior itself — its staircase, historic doors, cornices, chimneypieces and floors — may be protected. The first task is therefore not a design one. It is establishing what the lease allows, whether the building is listed, and which of the features you want to change are original fabric that any consent will be reluctant to lose. The demise is often narrower than owners assume — ceilings, floor screeds and the party structures between flats are frequently retained by the freeholder — and that boundary decides which parts of the home can be altered freely and which need the freeholder, and possibly a heritage case, before anyone lifts a floorboard. We map all of it before a layout is drawn, because a plan that ignores either the lease line or the protected fabric is a plan that has to be redrawn.
Where a building is listed, the interior is the heart of the problem. Listed building consent can reach plan form, panelling, staircases, cornices, chimneypieces and historic floors, so a strip-out that would be routine in an ordinary flat becomes a heritage exercise in which each intervention has to be justified. We survey the historic fabric before drawing anything, distinguish what is original from what is later and expendable, and design changes that retain and repair rather than remove. Reversible interventions, sympathetic replacement where fabric has already been lost, and a clear heritage justification for anything that cannot be kept are what carry an application, and none of it can be promised in advance of Westminster's assessment. In practice this means resisting the instinct to open the plan wherever it suits a modern layout: an original stair position, a run of enfilade doorways or a decorated ceiling may be exactly what the listing protects, so the reconfiguration is designed to work with those constraints rather than through them. Where later, unremarkable partitions have already eroded the historic plan, there is more freedom, and we identify that freedom early so the scheme spends its ambition where the fabric allows it.
Consents in St James's often run three deep, and they answer to different masters. Listed building consent addresses the heritage impact and is a Westminster matter; the Licence to Alter is a private grant from the freeholder or estate, made on their terms and timetable; and where an estate manages the building, its own approval sits alongside both. We prepare each package to the standard its reader expects and sequence them so one does not stall the next. A discipline that matters here is separating the consent evidence — drawings and heritage justification for the case officer and freeholder — from the contractor's method and access information, so that sensitive detail about a building goes only where it needs to.
Sound and fire separation shape the interior as much as the heritage does. In a mansion-block or apartment building the flats above and below are other people's homes, and moving rooms, laying hard flooring or relocating a bathroom changes how impact and airborne noise travel between demises. Many leases carry an express covenant requiring carpet or an equivalent acoustic finish, and building regulations set a sound-insulation standard between separate dwellings. We design a floating or resiliently isolated floor build-up, treat walls around any relocated wet room, and isolate service penetrations — while keeping fire separation between demises intact, which in a listed building has to be achieved without stripping out the very fabric that is protected.
Services are where a St James's flat refurbishment quietly gets difficult. Soil and waste from kitchens and bathrooms drain to a shared stack, usually in a communal riser, and there is only so far a wet room can move before the fall to that stack fails or a pump is needed. Incoming water, heating and any mechanical ventilation run within the same tight envelope, and works to the riser or shared services almost always need freeholder consent and coordinated shutdowns through the building manager. In a listed building the routes for new pipework and ducting are constrained further, because chasing into historic walls or cutting through protected floors is exactly what the consent will resist. Mechanical extract that has to pass through a listed or estate-controlled facade is its own consent question, not a detail to be resolved on site. We survey the existing service runs early and plan the layout around what the building can actually carry, so the drainage, the riser and the protected fabric are all reconciled before the layout is fixed rather than after the first wall is opened.
Delivering the work on a clubland-edge street is a discretion and logistics problem as much as a construction one. Access, security and the privacy of neighbouring institutional and residential uses often shape how and when a building can be worked on, and managed buildings set their own rules — lift bookings, common-part protection, restricted hours and method statements before access is granted. We build these conditions into the tender information so the contractor prices the real setting, then run the coordinated route: survey, confirm the lease and listing position for the exact address, prepare the listed building consent and Licence to Alter packages, and produce the building regulations drawings for construction — keeping Westminster, the freeholder or estate and the building manager aligned so the interior that is drawn is the one that can be consented and built.
