A whole-house refurbishment in Wandsworth Town begins with the period fabric you have inherited rather than a footprint you want to add. The Victorian and Edwardian terraces here were built with lime plaster, solid brickwork, suspended timber ground floors over ventilated sub-floor voids, lath-and-plaster ceilings and single-glazed sash windows, and the first job is to read which of that fabric is sound, which is failing and which is simply unloved. We survey the house for rising and penetrating damp, for timber decay in the joist ends where they bear into external walls, for cracked or blown plaster on chimney breasts, and for the condition of the roof covering, flashings and rainwater goods, because those findings set the scope. A refurbishment that repairs and upgrades this fabric honestly — treating the cause rather than the symptom — is worth far more than one that hides the problems behind new plaster and paint, and it is the reading of the fabric, not the mood board, that determines what the project really has to do.
The distinguishing move in a terrace refurbishment is internal reconfiguration without extending. These houses were planned for a different way of living — a narrow entrance hall, a front parlour, a back room and a closet wing off the rear — and much of the value we add is in reworking that plan while keeping the house entirely within its existing walls and roof. That means establishing which walls are load-bearing, where a steel or timber beam can open a room without disturbing the structure and chimney stacks above, and how to reinstate or improve the proportions and circulation the original plan implied. Because the neighbours are attached on one or both sides, any structural opening formed in or against a party wall, and any cutting into it to seat a new beam, brings the Party Wall etc. Act 1996 into play, so we identify the notifiable elements early and programme the notices rather than letting them surface once the builder is on site.
Sash windows and external joinery are where a refurbishment meets the conservation question head-on. On a house inside one of the area's conservation appraisal streets, the original timber sashes, their glazing bars and their proportions are part of the protected character, and wholesale replacement in a different material or a heavier section is exactly what the appraisal resists. Our usual route is to overhaul the existing boxes — splicing sills, renewing cords, weights and parting beads, easing and draught-sealing the sashes and, where the frame depth allows, introducing slim double glazing or discreet secondary glazing behind them — so the thermal and acoustic performance improves markedly without the front elevation losing its rhythm. Where the address sits outside a designated boundary the specification can be freer, which is precisely why confirming whether your property falls within a conservation area matters before any window is ordered.
Refurbishing a flat or maisonette is a different discipline governed by tenure rather than council policy. In the riverside apartments and the period houses converted into flats, the works sit inside a lease, and most leases reserve the freeholder's consent for structural alterations, for changes to services and drainage, and often for removing carpet or relocating a bathroom or kitchen over a neighbour below. A Licence to Alter is the legal instrument that grants that permission, and it usually arrives with conditions on acoustic separation, working hours, insurance, method of working and reinstatement at the end of the term. We prepare the drawings and specification to the standard a freeholder and their managing surveyor will expect to see, so the licence is negotiated and granted cleanly rather than stalling the programme for weeks while the paperwork catches up with the design.
Acoustic and fire separation are the technical heart of a flat refurbishment, and they rarely trouble a freehold house in the same way. When a floor is lifted in an apartment, the separating floor between you and the flat below has to keep — and ideally improve — its sound insulation, so the build-up is designed deliberately: resilient layers, acoustic battens or cradles, a floating screed or an isolated deck, chosen to meet both the lease condition and the building regulations for separating floors. Fire is the parallel concern: the flat entrance door, the compartment walls between dwellings and the protected escape route through the common parts are all part of a shared building strategy, and a refurbishment must not weaken them. We coordinate the floor make-up, the routes for new services and the fire-stopping around penetrations so the flat performs as part of the block, not against it.
From survey to completion the refurbishment is a coordinated technical package rather than a decorating exercise. We record the house or flat as existing, agree the scope against the fabric findings and the tenure position, then develop drawings that carry the reconfiguration, the fabric repairs and the full re-servicing — new wiring, heating, hot water and drainage runs threaded sensibly through the existing structure without butchering joists or historic finishes. The building regulations package covers structure, fire, insulation, ventilation, drainage and, where floors are opened, the sub-floor detail, for the parts of the work that engage them, and for a flat it sits alongside the Licence to Alter as a parallel consent. On the attached Wandsworth Town terraces the Party Wall etc. Act is programmed in step with the design, so the build starts with its consents settled rather than chasing them once scaffolding is up.
