Victorian renovation in Balham SW12 — Victorian terrace and villa renovation for properties on Nightingale Lane, Balham High Road, Ramsden Road. Victorian-era properties share common issues: solid walls needing thermal upgrade, timber sash windows requiring careful restoration, lead plumbing requiring full replacement, and original cornicing / ceiling roses worth preserving.
Every victorian renovation project in Balham is designed to respect the Nightingale Triangle Conservation Area and the character of Victorian terraces, Edwardian villas, period conversions. Our in-house RIBA architects handle Wandsworth planning applications, our chartered structural engineers specify any load-bearing work, and our directly-employed trades deliver the build under one fixed-price contract. We coordinate Building Control, Party Wall awards where needed, and all certifications through to handover.
Balham has conservation area coverage in parts, so some properties will need planning permission for external changes while others may proceed under permitted development. We assess each property individually.
Our victorian renovation projects in Balham are delivered by our in-house team of RIBA architects, structural engineers and specialist tradespeople. Every project is managed under a single fixed-price contract with no hidden costs.
A Victorian house behaves as a moisture system long before it behaves as a set of rooms. The bay-fronted terraces along Bedford Hill and Ramsden Road, and the larger double-fronted villas in the Nightingale Triangle around Nightingale Lane, were built in solid brick with no cavity, bedded in lime mortar and finished internally in lime plaster on timber lath. Those walls were never intended to stay dry. They take up water in driving rain and release it again when the weather turns, and the whole construction depends on that exchange continuing. Almost every serious defect we open up in a Balham period property comes from something later that stopped it happening.
So the survey runs across the fabric rather than through it room by room. We look at external ground levels against the brick, at cement render or hard pointing that has sealed the base of a wall, at gypsum skim trapping moisture behind it, at whether the airbricks serving the suspended timber ground floor are still clear or have been blocked by a path or a later extension. We check flues and stacks, the slate roof coverings, and the valley and parapet gutters that carry a surprising share of a Victorian roof's water.
The order that follows is usually the same. Get the roof, rainwater and ground drainage sound, let the walls dry and breathe, then choose insulation, joinery and services around a fabric that is already stable. Because Wandsworth scrutinises external change in its conservation areas and applies Article 4 controls, the outward face of the house is largely a repair exercise, and the freedom to reconfigure sits internally and to the rear.
A full refurbishment goes far deeper than new paint and replacement kitchens. It addresses everything behind the walls — rewiring electrical systems that haven't been updated since the 1960s, replacing lead plumbing with copper and plastic, insulating solid walls that leak heat through every brick, and reconfiguring floor plans designed for a Victorian household with live-in servants, not a contemporary family.
Our approach starts with the layout. Before selecting a single tile or paint colour, our architects redesign the floor plan — opening up cramped ground floors, relocating bathrooms, creating en-suites, adding utility rooms, improving circulation and sight-lines, and ensuring every square metre works harder.
Once the layout is resolved, our interior designers develop a cohesive design language that runs through every room — material palettes, joinery profiles, ironmongery, lighting schemes, tile specifications and colour stories developed as a unified whole. The result is a home that feels intentional throughout.
Every refurbishment is delivered under a single fixed-price contract covering design, structural alterations, full M&E, kitchen, bathrooms, flooring, joinery, decoration and all finishes. We don't quote for building work then add extras for interiors — it's all one price.
A full refurbishment touches every element of your home.
Removing and repositioning internal walls, creating open-plan spaces, adding en-suites, reconfiguring staircases and improving circulation. Our architects redesign the entire floor plan before a single trade enters the building.
Complete consumer unit replacement, new circuits, contemporary socket layouts with USB charging, dimmer circuits, smart home pre-wiring and lighting design circuits. Certified to BS 7671 18th Edition.
Full replumb replacing lead pipework. New condensing boiler or heat pump, radiator upgrade or underfloor heating, pressurised hot water systems and new waste connections.
Bespoke kitchen design with premium cabinetry and appliances. Bathroom fit-outs with wall-hung sanitary ware, walk-in showers, freestanding baths and underfloor heating.
Engineered oak, natural stone, porcelain, encaustic tile — specified room by room. Bespoke skirting, architraves, wardrobes, bookcases, window seats and alcove units designed to the property's character.
Architectural lighting schemes layering ambient, task and accent lighting. Smart control (Lutron, Rako), multi-room audio pre-wiring, automated blinds and centralised home control.
Victorian plans repay being read before they are altered. A Balham terrace was laid out as front parlour and back parlour with a narrow hall alongside; the villas add a second reception and a wider stair. Each space carries different period fabric, so the work differs room to room.
Every room in a full refurbishment has its own technical requirements, specification decisions and sequencing considerations. Here is what is involved in each.
A full kitchen refurbishment begins with complete strip-out of existing units, flooring, wall finishes, electrics and plumbing. The space is then rewired with dedicated circuits for oven, hob, extraction, fridge-freezer and dishwasher, plus general socket circuits with USB provision. Plumbing is re-run in copper and plastic to new locations. The layout is redesigned for workflow efficiency — our kitchen designers follow the work-triangle principle while adapting to the specific proportions of your room. New installations include bespoke or premium cabinetry, stone or composite worktops, integrated appliances, feature lighting (under-cabinet, pendant, recessed), splashback tiling or glass, and engineered timber or stone flooring. Extraction is ducted to the outside. Underfloor heating is fitted beneath the finished floor.
Bathrooms require the most intensive waterproofing of any room in the house. We strip out all existing fittings, tiles and substrate, then apply tanking membrane to all wet areas (shower enclosures, bath surrounds, floors) before tiling. Underfloor heating is installed beneath porcelain or natural stone tiles. Plumbing is re-run to accommodate the new layout, often including relocation of waste stacks and soil pipes. Sanitaryware selection includes wall-hung WCs (for easier cleaning and a more spacious feel), freestanding or built-in baths, walk-in or wetroom showers with frameless glass enclosures, and twin basin vanity units. Heated towel rails, anti-mist mirrors, recessed LED lighting and extractor fans complete the specification.
Living rooms and reception rooms often involve structural alterations — removing load-bearing walls to create open-plan spaces, installing steel beams to support the floor above, and widening doorways to improve flow between rooms. Flooring is selected for acoustics and durability: engineered oak, natural stone or high-quality LVT. Lighting design layers ambient (recessed downlights or pendant fittings), task (reading lamps, desk lighting) and accent (picture lights, LED strips, uplighters) circuits on separate dimmer controls. Bespoke joinery — alcove shelving, window seats, media walls, fireplace surrounds — is designed to the proportions of each room. Walls are re-plastered to a smooth finish, and period features (cornicing, ceiling roses, dado rails) are restored or replicated where appropriate.
Bedroom refurbishment focuses on creating calm, well-organised spaces. Built-in wardrobes are designed floor-to-ceiling with internal fittings (hanging rails, shelving, drawers, shoe racks, lighting) tailored to how you dress. Acoustic insulation is installed in party walls and floors — particularly important in converted flats and terraced properties — using acoustic mineral wool and resilient bars to achieve meaningful sound reduction. Windows are overhauled or replaced: secondary glazing for listed properties, slim-profile double glazing for conservation areas, or high-performance triple glazing where planning allows. Blackout blinds, layered lighting (bedside, wardrobe, ambient) and smart controls complete a restful environment.
The hallway sets the tone for the entire house. In period properties, we restore original encaustic or geometric floor tiles, repair and French-polish timber balustrades, rebuild newel posts and reinstate panelled wainscoting or dado rails. Where the original features have been lost, we commission faithful reproductions from specialist joiners. Stair treads are repaired and finished in matching timber, with runners fitted for noise reduction and grip. Lighting is critical: a combination of pendant or lantern fittings, wall sconces and recessed lighting creates depth and warmth. Storage is built into dead space beneath staircases. Doorbells, entry systems, coat hooks, shoe storage and radiator covers are all specified as part of the design.
A dedicated utility room is one of the most requested additions in a full refurbishment. We create space for washing machine, tumble dryer (or washer-dryer), sink, drying rack, ironing station and cleaning supply storage. Plumbing and extraction are run to the utility room during first fix. Where space permits, a separate pantry with open shelving, cold storage and counter space significantly improves kitchen functionality. Plant rooms house the boiler (or heat pump indoor unit), hot water cylinder, consumer unit and any home automation hardware — keeping services accessible for maintenance while hidden from living spaces. Every cupboard and storage area is fitted with lighting and considered as part of the overall design.
On a period property in SW12 the choice is rarely between keeping a house and replacing it. It is between repairing an original element and swapping it for a modern equivalent, and the answer depends on what the element is doing.
Original sashes are usually worth keeping. The timber in them is slow-grown and dense, decay tends to be confined to sill, bottom rail and the ends of the stiles, and those can be cut out and spliced. Draught-proofing brushes in the parting bead and staff bead, re-corded weights and refurbished pulleys deal with most of the discomfort people blame on single glazing. Slim double-glazed units into original boxes are a possibility where the joinery is deep enough and where consent allows, but in Wandsworth's conservation areas, with Article 4 controls in force, wholesale window replacement is the option least likely to be agreed. Listed buildings in SW12 narrow that further.
Plaster is the opposite calculation. Where lath and plaster is sound and keyed, it is patched and consolidated. Where the laths have rotted or the keys have failed across a whole ceiling, it comes off and goes back — and the useful question then is what replaces it. Gypsum on a solid brick wall behaves differently to lime, and on the exposed elevations of a Balham terrace that difference tends to show up as cold-bridging and surface mould within a few winters.
Back-to-brick work is justified when services, floors and wall finishes have all reached the end of their life at once. It is not justified as a way of clearing period detail that could have been retained, and once cornices, doors and grates are skipped they cannot be recovered.
Not every property is best served by refurbishment. Here is how to decide whether to refurbish the existing structure or demolish and rebuild.
Refurbishment is the right choice when the existing structure is fundamentally sound — solid walls, stable foundations, a serviceable roof. It is also the preferred route when the property has period features worth preserving (original cornicing, ceiling roses, fireplaces, panelled doors, timber floors), when planning restrictions make demolition difficult or impossible (listed buildings, conservation areas), or when budget constraints favour working with the existing shell rather than starting from scratch. Most London period properties — Victorian terraces, Georgian townhouses, Edwardian semis — fall firmly into the refurbishment category.
Demolition and rebuild is justified when the existing structure has significant defects — severe subsidence, failed foundations, widespread dry rot affecting the structural timber, or extensive asbestos contamination that makes strip-out more expensive than demolition. It may also make sense when the desired layout is so radically different from the existing building that the structural alterations required would cost more than rebuilding. In some cases, a Whole Energy Retrofit analysis may show that the existing building fabric is so thermally poor that a new build to current standards offers better long-term value.
A comprehensive refurbishment typically costs £650–£1,250/sqm depending on specification level. A demolition and rebuild (excluding land value) costs substantially more per square metre. However, the rebuild figure includes foundations, superstructure, roof, external walls and all services — elements that already exist in a refurbishment. The decision should be made on a case-by-case basis following a thorough structural survey. We provide honest advice on which route offers the best outcome for your specific property.
Period fabric dictates its own running order, and getting it wrong is what turns a renovation into a second renovation.
Opening up comes first. Boards are lifted at the perimeter of the ground floor to see the joist ends, the sleeper walls and whether the subfloor void is ventilated or silted up; ceilings are inspected from above; a flue is checked before anything is planned around it. Because Victorian houses in this stock carry lead paint on joinery and asbestos in later twentieth-century additions, sampling and safe removal are booked before demolition, not discovered during it.
Water is dealt with next. Slate slipping, failed valley and parapet gutters, defective flashings at the stack and blocked ground drainage all put water into solid walls faster than any internal work can dry them. Only when the envelope is shedding water properly do we strip cement pointing back to lime and let the walls give up their moisture.
Structure follows: chimney breast removal with gallows brackets or a beam, openings between the parlours, and steelwork to any rear opening. On the terraced runs off Bedford Hill and Ramsden Road this stage triggers party wall awards, and those need serving early because the notice periods, not the works, set the date. Site access on residential streets shapes deliveries and skip positions in the same way.
Then first-fix services, insulation and lime plaster — which needs weeks, not days, to carry and dry before decoration. Joinery repair runs in parallel off site so sashes return finished. Decoration is genuinely last, and on newly plastered lime it starts with a breathable mist coat, never a vinyl emulsion that will seal the surface it was meant to protect.
The order in which trades enter the building is critical. Getting the sequence wrong causes delays, rework and damage to finished surfaces. Here is the correct order and why it matters.
Everything that is being replaced is removed: kitchens, bathrooms, floor coverings, old plaster, redundant electrics and plumbing, partition walls. The building is taken back to its structural shell. This reveals the true condition of the property — hidden damp, rotten timbers, failed lintels, asbestos — allowing problems to be addressed before new work begins. Skipping a thorough strip-out is the most common cause of cost overruns, because defects discovered after new work has started require expensive rework.
Load-bearing walls are removed and steel beams installed. Floors are strengthened, lintels replaced, timber joists sistered or renewed. Any underpinning, foundation work or damp-proofing is completed at this stage. Structural work must be finished and signed off by building control before first fix begins, because the building must be structurally stable before services are installed within it.
New electrical cables are run to every socket, switch, light fitting and appliance position. Plumbing pipes are run to every tap, WC, bath, shower, washing machine and boiler location. Heating pipework (radiators or underfloor) is laid. Ventilation ductwork is installed. First fix happens before plastering because all cables and pipes need to be concealed within the walls and floors. Getting the positions right at this stage is critical — moving a socket after plastering means cutting out plaster, re-routing cable and re-plastering.
Walls and ceilings are plastered to a smooth finish over the first-fix services. This creates the final surface for decoration and must be done to a high standard — imperfections in plaster are visible through paint. Plaster must dry thoroughly (typically 2–4 weeks depending on season and ventilation) before decoration begins. Rushing this stage leads to paint failure and mould. We monitor moisture levels with a hygrometer and do not begin decoration until readings are within tolerance.
Electrical face plates (sockets, switches, light fittings) are installed. Bathroom and kitchen fittings are connected. Radiators or underfloor heating thermostats are fitted. Doors are hung, ironmongery fitted, skirting boards and architraves installed. This stage brings the house from a building site to something recognisable as a home.
Kitchen units, worktops, splashbacks and appliances are installed. Bathrooms are tiled, sanitaryware fitted, screens and mirrors hung. These are the highest-specification elements of the refurbishment and require careful protection during subsequent decoration work.
Walls are mist-coated (to seal new plaster), then finished with two coats of emulsion. Woodwork is undercoated and gloss-finished (or eggshell for a contemporary look). Ceilings are painted. Wallpaper is hung where specified. This stage must happen after all dusty trades (plastering, tiling, sanding) are complete to avoid contamination of wet paint surfaces.
A detailed room-by-room inspection identifies any defects: paint touch-ups, alignment adjustments, scratches, incomplete seals, stiff handles, squeaky floorboards. Every snag is logged, photographed and rectified before handover. We provide a full handover pack including appliance manuals, paint references, material specifications, electrical certificates, gas safety records and a 12-month defects liability warranty.
Renovating Victorian fabric puts you in a slightly awkward relationship with the regulations, because most of them were written around cavity construction. Wandsworth building control, or an approved inspector, will still expect the standards to be met — the skill is meeting them without damaging the wall.
The energy requirements bite hardest. A solid brick wall upgraded internally moves the dew point inwards, and if a vapour-tight system is fixed against damp brick you get interstitial condensation and rotting joist ends where the floor timbers are built into the wall. Vapour-open insulation such as wood fibre, generous perimeter detailing, and unblocked airbricks under the suspended ground floor are all part of demonstrating compliance rather than optional extras.
Ventilation obligations follow from that. Once draughts are taken out of sashes and doors, the house needs deliberate background and extract ventilation to bathrooms and kitchen, and disused flues still need a small permanent vent top and bottom so the stack does not sweat.
Other duties are triggered by common Victorian works. Removing a chimney breast is notifiable structural work and requires calculations for the support of the masonry left above. Forming an opening between the parlours or into a rear extension needs beam design and adequate padstones onto old brickwork. A loft conversion brings protected-stair, fire-door and escape requirements into a house that never had them, along with head-height and pitch rules on the new stair. Electrical work is notifiable, and rewiring a house with rubber or lead-sheathed legacy circuits is usually a full replacement rather than an extension of what exists. On flats in the converted buildings along Balham High Road, a Licence to Alter runs alongside all of this.
Not every refurbishment requires building regulations approval, but many elements do. Here are the key Approved Documents that commonly apply.
Any electrical work in a dwelling must be carried out by a Part P registered electrician or notified to building control. A full rewire, new consumer unit, new circuits, or work in bathrooms and kitchens all require Part P compliance. On completion, you receive an Electrical Installation Certificate and the work is registered on the national database. We use Part P registered electricians on every project and provide full certification as standard.
When you replace more than 25% of a thermal element (roof, walls, floors, windows), the replacement must meet current thermal performance standards. This means if you are replastering walls, you may need to add insulation to meet the required U-values. Similarly, window replacement triggers minimum energy performance requirements. In a full refurbishment where all elements are being renewed, a SAP assessment may be required to demonstrate overall energy performance. We design insulation strategies that improve thermal performance without compromising room proportions or period character.
If you are refurbishing a flat within a converted building, fire safety regulations apply to the means of escape. Fire doors (FD30S) must be fitted to all habitable rooms opening onto a communal hallway. Smoke detection systems must comply with BS 5839. Fire-resistant construction may be required to walls and ceilings separating your flat from communal areas and other dwellings. Where structural alterations create new openings in fire-separating elements, fire stopping must be installed to maintain compartmentalisation.
When converting a house into flats, or refurbishing an existing flat conversion, Part E requires minimum acoustic performance between dwellings. This typically means upgrading floor and wall constructions to achieve specified airborne and impact sound insulation values. Even in a single dwelling, acoustic insulation between bedrooms and living spaces significantly improves comfort. We specify acoustic mineral wool, resilient bars, acoustic plasterboard and floating floor systems where required to achieve or exceed the minimum standards.
A structured process ensuring nothing is missed.
Full property survey — structural condition, M&E assessment, damp checks, asbestos screening. We discuss how you use each room, your lifestyle priorities and aesthetic preferences. You receive a feasibility report with scope, budget and timeline.
Architects redesign the floor plan. Interior designers develop material palettes, colour schemes, joinery details, bathroom and kitchen schemes, lighting and furniture layouts — all in photorealistic 3D. Every selection approved from physical samples before ordering. Complete specification document locks in every finish before construction.
Property stripped to structural shell. Old kitchens, bathrooms, floor coverings, plaster, electrics and plumbing removed. Structural engineering-led alterations: walls removed, steels installed, floors strengthened. Asbestos professionally removed where found.
New electrical circuits, plumbing and heating throughout. Underfloor heating, insulation, plasterboarding, plastering and stud walls for new room configurations. Every socket, switch and pipe position exactly as specified.
Kitchen installation, bathroom tiling, flooring throughout, bespoke joinery, staircase renovation, door hanging, ironmongery, second fix electrics, painting and decoration — room by room to quality sign-off. Snagging and handover with 12-month warranty.
Guide prices per sqm. All tiers include design, structural work, full M&E, kitchens, bathrooms and decoration.
What makes our refurbishments different from a builder and a decorator.
Layout redesign by a RIBA architect and interior specification by a dedicated designer — working in tandem from day one. Spatial planning and material palette developed together, not sequentially.
Every room rendered in photorealistic 3D before construction. See exactly how finishes, furniture and lighting work together. Changes on screen, not on site.
One price for design, M&E, structural work, kitchen, bathrooms, flooring, joinery and decoration. Not a builder's quote with interiors as an extra — a single all-inclusive figure.
We understand Victorian proportions, Georgian joinery profiles, Edwardian ceiling heights and how to introduce contemporary elements that complement period character.
Our Finchley Road studio houses stone samples, timber swatches, tile displays, fabric books and ironmongery collections — all for in-person selection.
We manage procurement of every material and fitting — coordinating lead times across 50+ suppliers to ensure on-time site delivery.
Insulation improvements, draught-proofing, boiler upgrades and window enhancements that improve energy performance without compromising character.
Original sashes overhauled, draught-sealed, re-weighted and re-glazed rather than replaced — maintaining heritage character and avoiding replacement costs.
Dedicated project manager coordinates all trades, manages the programme, conducts weekly inspections and provides regular client updates.
We refurbish both vacant properties (fastest) and occupied homes (phased room-by-room). We advise the most practical approach for your circumstances.
Many clients appoint us before completing on a purchase — so the programme starts on day of exchange and the house is ready to move into on completion.
Selected whole-house refurbishments across London.
Full strip-back and reconfiguration. New open-plan ground floor, 3 bathrooms, bespoke kitchen and complete rewire/replumb.
Sensitive refurbishment: new kitchen-diner, 3 redesigned bathrooms, period joinery restoration and complete M&E upgrade.
Complete 95sqm flat refurbishment. New layout with en-suite master, open-plan kitchen-living, full rewire and contemporary interior.
Need a same-day repair in NW London?
Visit Hampstead On Demand →We bought a tired 1890s terrace and appointed Hampstead Renovations before exchange. They started the day we got the keys. Eighteen weeks later we moved into a home that felt like it had been built for us — the layout is completely different but every period detail respected. The interior design continuity room to room makes the whole house feel intentional.
The 3D room renders were game-changing. We could see exactly how the herringbone floor, wall colour, pendant lights and joinery worked together before orders were placed. We made two changes in design that would have cost thousands on site. The fixed price held exactly across 22 weeks and 240 square metres.
We refurbished our Maida Vale flat while renting it out — Hampstead managed everything without us visiting once during the 12-week build. The procurement coordination was extraordinary: every tile, fitting and piece of ironmongery arrived exactly when needed. Boutique hotel standard quality. Tenants moved in the day after handover.
Can I replace my sash windows with double glazing in a Balham conservation area?
Usually not as a like-for-like swap. Wandsworth applies Article 4 controls and examines external change closely in its conservation areas, so the realistic route is repairing the original boxes, splicing decayed rails and sills, re-cording the weights and fitting concealed draught seals. Slim double-glazed units into existing joinery can sometimes be agreed where the sash sections are deep enough, and listed buildings in SW12 are assessed separately again.
My ground floor feels cold and smells musty — is that rising damp?
Often it is not. In a Victorian terrace the more common cause is a subfloor void that has stopped ventilating, because airbricks were rendered over, buried by a raised path, or blocked by a rear extension. Stagnant air under the boards keeps the joist ends and wall plates wet. Clearing and adding airbricks, and dropping external ground levels back below the internal floor, resolves a great many cases without chemical injection.
Can I take out the chimney breasts to gain space?
Sometimes, but never floor by floor in isolation. The breast supports everything above it, including the stack, so removal at ground level means supporting the masonry above with gallows brackets or a beam, with calculations and building control involvement. On the terraces off Bedford Hill and Ramsden Road the stack is usually shared, which makes it party wall work as well.
Does the house have to be replastered in lime?
Where the wall is solid brick and exposed to weather, lime is the safer choice because it lets moisture move back out. Gypsum is acceptable on internal partitions and dry inner walls.
Common questions about full house refurbishment.
A typical full refurbishment of a 3–4 bedroom London property takes 12–24 weeks on site, depending on the scope of structural works, specification level and property size. A smaller flat (1–2 bedrooms) with no structural alterations can be completed in 8–12 weeks. Larger properties (5+ bedrooms) or projects involving basement or loft conversions may take 6–9 months. Add 4–8 weeks of design time before construction begins. We provide a detailed programme at the start of every project showing weekly milestones and key decision points.
For a full refurbishment — where every room is being stripped, rewired and replastered — we strongly recommend moving out. The property will have no functioning kitchen or bathroom during the works, dust levels are significant during strip-out and plastering phases, and the constant presence of trades makes daily living extremely difficult. Most clients either rent nearby, stay with family or use short-term accommodation. For partial refurbishments (one floor at a time), it may be possible to live in the unaffected part of the property, though this extends the programme and requires careful sequencing.
The terms are often used interchangeably, but in the construction industry, a refurbishment implies a more comprehensive scope than a renovation. A renovation might involve updating kitchens and bathrooms, redecorating and minor repairs — working with the existing layout and services. A full refurbishment typically means stripping the property back to its structural shell and rebuilding everything: new electrics, new plumbing, new heating, new layout, new finishes throughout. It is essentially creating a new home within an existing shell. Our full refurbishment service covers the complete scope from strip-out to handover.
Internal refurbishment work generally does not require planning permission — you can rewire, replumb, replaster, fit new kitchens and bathrooms, and redecorate without any planning application. However, planning permission is needed if you are: changing the external appearance of the building (new windows, changing door positions, removing chimneys), making structural alterations visible from outside, changing the use of the property, or working on a listed building (where Listed Building Consent is required for most internal and external works). In conservation areas, window replacement and external changes may also require planning consent.
Our full refurbishment costs typically range from £650–£1,250/sqm, depending on specification level. A standard refurbishment sits at the lower end of that range and includes complete rewire, replumb, plastering, new kitchen, new bathrooms, flooring and decoration to a good quality. A premium specification sits mid-range and adds bespoke joinery, designer kitchens, high-end sanitaryware, engineered timber flooring and architectural lighting. An ultra-premium specification sits at the top of that range and includes top-tier brands (Bulthaup, Lefroy Brooks, Dinesen), smart home systems, and bespoke everything. For a 150 sqm London house, expect total costs of £75,000–£180,000 depending on specification.
Our full refurbishment scope covers: architectural layout redesign, 3D visualisations, complete strip-out, structural alterations (wall removals, steels), full electrical rewire to 18th Edition, full replumb in copper and plastic, new heating system (boiler or heat pump), plastering throughout, new kitchen design and installation, new bathroom design and installation, flooring throughout (timber, stone, tile or LVT), bespoke joinery (wardrobes, shelving, media walls), staircase renovation, door replacement or overhaul, ironmongery, lighting design, decoration (paint, wallpaper), and snagging. Interior design specification is included as part of the package — not charged separately.
Yes, for most elements of a full refurbishment. Electrical rewiring must comply with Part P and be certified by a registered electrician. Structural engineering-led alterations (wall removals, new beams) require building regulations approval under Part A. Replacement windows must meet Part L energy standards. Heating installations must comply with Part J (combustion appliances) and Part L. In flats, fire safety (Part B) and acoustic (Part E) requirements apply. We manage all building regulations applications and inspections as part of our service, ensuring full compliance and providing all necessary certificates at handover.
Protecting original features is a priority on every period property refurbishment. Before strip-out, we conduct a detailed survey identifying features to retain: original cornicing, ceiling roses, fireplaces, floor tiles, timber floors, panelled doors, balustrades, stained glass and decorative plasterwork. These are either protected in situ with boarding, dust sheets and impact protection, or carefully removed, labelled and stored off-site for reinstatement. Our specialist plasterers can repair damaged cornicing and cast new sections to match existing profiles. Original timber floors are sanded and refinished. Fireplaces are restored, re-lined where necessary and fitted with appropriate grates or log burners. Where original features have been lost in previous unsympathetic alterations, we commission faithful reproductions from specialist craftspeople.
A full refurbishment often includes elements from our specialist services. Explore the detail.
Bespoke kitchen design, premium cabinetry, integrated appliances and stone worktops — our dedicated kitchen service delivers the heart of your refurbished home.
Walk-in showers, freestanding baths, wall-hung sanitaryware and underfloor heating — every bathroom designed as a spa-like retreat.
Wall removals, steel beam installations, floor strengthening and foundation work — the structural backbone of every refurbishment project.
Use these area-specific guide pages to compare the next build routes, planning questions and cost topics people commonly research in Balham SW12.
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The same NW3 design-build team covers the neighbouring areas: