A whole-house refurbishment is a different discipline from an extension. An extension asks how far to project into the garden; a refurbishment asks how to renew everything a Balham terrace needs at once — the wiring, the pipework, the heating, the bathrooms, the insulation and the tired original fabric — without the trades tripping over each other or the budget disappearing into surprises behind the plaster. We start by surveying what is actually there: the age of the consumer unit and circuits, the state of the waste and supply pipework, where damp is entering, whether the roof coverings and rainwater goods are sound, and which original features survive. On houses untouched for decades that condition survey routinely uncovers overloaded circuits, lead or failing pipework and earlier alterations done without consent. That existing-condition picture, drawn up accurately, is what turns a wish list into a scope a builder can price and a programme that holds.
The building fabric is where a Balham refurbishment earns its keep, and where the biggest mistakes are made. These are solid-wall houses with lime-based construction, and they were built to let moisture move through the walls and evaporate. Wrapping them in impermeable insulation and non-breathable paints can trap that moisture, and the damp reappears as spoilt plaster or rot in the embedded timbers. We design insulation to the solid walls, roof and floors as a breathable system — appropriate insulants, ventilation and vapour-open finishes considered together — so the house is warmer and cheaper to run without creating a moisture problem that was not there before. The same discipline governs draught-proofing and secondary glazing to the original sashes, upgrading airtightness only where controlled ventilation is provided to match, so comfort improves without condensation collecting in cold corners.
Services renewal is the invisible half of the project and usually the reason to do everything at once. A full rewire and replumb means lifting floors, chasing walls and opening ceilings across the whole house, which is disruptive and hard to justify room by room but efficient as a single campaign. We plan the new circuits, the heating and hot-water strategy, the ventilation to wet rooms and the position of the boiler or cylinder alongside the layout, so that radiators, sockets, switches and pipe runs are coordinated rather than fought over on site. Getting the services routes agreed before plastering is what avoids re-opening finished rooms later. It is also the moment to decide the heating approach — where a cylinder or boiler sits, whether underfloor heating suits the ground floor, and how future-proof the system needs to be — because those choices set the pipe sizes and floor build-ups that everything else is then built around.
Layout and the everyday rooms come next. Balham's Victorian and Edwardian terraces have a legible original plan — front and rear reception rooms, a back addition, bedrooms over — and the refurbishment's job is to make that plan work for modern life without erasing it. That usually means rethinking the bathrooms, adding an en-suite or a second WC, improving storage that period houses rarely provided, and deciding which non-original partitions from earlier conversions to remove. We keep the changes surgical: opening up where it genuinely helps, retaining the room proportions and the cornices and joinery that give these houses their character, and only proposing structural alteration where the benefit is real. Removing a chimney breast, widening an opening between the front and rear rooms or reworking the back-addition bathroom stack are the moves that recur, and each is checked against the loads it carries and the neighbour it may share a wall with before it is drawn in.
Tenure decides how far a refurbishment can go, and it is not the same for every Balham home. A freehold terraced house is the owner's to reconfigure within planning and building regulations. A converted-house flat or maisonette is held on a lease, so structural alterations, changes to services and sometimes even internal reconfiguration need the freeholder's formal consent — a licence to alter — and the works must respect the flat below and above. We establish the tenure and the lease constraints at the outset, because they govern what is achievable, who must approve it and how the drawings are prepared, and discovering a consent requirement late can stall a job that is otherwise ready to start. A lease will often also dictate hours of work, protection of common parts and how services that pass through other flats may be touched, so we read those terms into the specification rather than leaving them for the builder to negotiate on site.
Finally, a whole-house project has to be sequenced and priced as one thing. We define the scope through measured existing and proposed drawings and a specification, so the work can be tendered to builders on a like-for-like basis rather than guessed at. Where the budget or occupation requires it, we phase the work — completing the disruptive structural and services stages first, then the finishes — and set out which stages must precede others. The result is a Balham house whose fabric, services and layout have been renewed together to a coordinated plan, with the pricing, phasing and approvals settled before the first floorboard comes up. Because the same drawings and specification are used to secure building-regulations sign-off and any freeholder or conservation consent, the document set that prices the work is also the one that proves it was carried out properly — which matters later when the house is sold or re-mortgaged.
