A South Kensington refurbishment is really two different jobs sharing a name. On a grand stucco townhouse it is a whole-house project — re-planning four or five storeys, renewing services top to bottom, resolving the lower-ground and its damp, and lifting the finish to a standard the street expects while keeping the original plan and joinery legible. On a red-brick mansion block it is a comprehensive flat overhaul, where the footprint is fixed and the gains come from reconfiguring the layout, upgrading the services within it and resolving the separation to the apartments above, below and alongside. We establish which of these two projects you have before any drawing is produced, because they run on entirely different constraints.
Where the building is listed — and across South Kensington that is common — the refurbishment turns on internal fabric long before it turns on style. Listed building consent reaches inside the front door: original cornices, the staircase, panelling, plan form and historic joinery are all protected, and moving a wall or stripping out a room can require consent as much as changing a window. We survey and record the interior, identify what is original and what is later, and design the refurbishment to work with the significant fabric rather than through it. The listing entry and its extent should be confirmed for the exact address, because that is what sets the boundary of what can be altered.
For a mansion-flat refurbishment the governing document is usually the lease, not the planning file. Reconfiguring a leasehold apartment almost always needs the freeholder's consent through a Licence to Alter, and the managing agents will scrutinise anything that affects the structure of the block, the acoustic separation to the flat below or the fire separation between apartments. We prepare the drawings and specifications the agents and their surveyor need, and we design the works to satisfy that scrutiny — retaining or improving the floor build-up, keeping loadings within what the structure allows, and demonstrating that compartmentation between flats is maintained. Getting that consent framed early prevents a layout being redrawn late.
Services are where a period refurbishment is quietly won or lost. A whole-house townhouse project means routing new heating, hot water, electrical, ventilation and drainage through a building never designed for them, finding riser positions that do not cut through protected fabric, and coordinating plant, underfloor heating and comfort cooling without lowering ceilings that carry historic cornices. In a mansion flat the same coordination happens within a fixed shell, threading services through limited risers and floor zones shared with neighbours. We coordinate the mechanical and electrical design with the architecture from the start, so the services strategy shapes the plan rather than being forced through it afterwards.
The lower-ground and below-datum levels are the townhouse refurbishment's recurring technical problem. Period terraces here carry lower-ground rooms, vaulted front areas and original drainage that predate any modern damp standard, so refurbishment routinely means tanking, addressing rising and penetrating damp, and renewing drainage that may run below the pavement vaults. Building regulations govern the structure, drainage and waterproofing of that work, and where a wall is shared with an attached neighbour, alterations can engage the Party Wall etc. Act 1996 — as can structural work between stacked flats. We identify the notifiable neighbours early and coordinate with a party wall surveyor so the below-ground works do not stall the programme.
The route through is a coordinated one, and it does not begin with a planning application. We survey the property, establish whether the building is listed and whether it sits in a conservation area, and confirm the tenure and consent path — Licence to Alter for a leasehold flat, listed building consent for protected fabric, planning or conservation-area consent only where external changes require it. From there we develop the design, produce the consent drawings, and, once the principle is settled, the building regulations and technical package for construction. We do not promise approval; RBKC assesses each proposal against its local plan, conservation appraisals and the listing of the building, and freeholders decide their own consents. What we provide is a refurbishment designed to be defensible on every one of those fronts.
