Full house renovation in South-East London (2026): costs, timelines and what to expect

A full house renovation in South-East London in 2026 typically costs between £820 and £1,900 per square metre, depending on specification — which puts a whole-house overhaul of a 100 m² Victorian terrace in Camberwell, Peckham or New Cross somewhere between £130,000 and £195,000, and a larger Blackheath or Dulwich Edwardian villa at £260,000 upward. This guide is for homeowners in SE1, SE3, SE5, SE10, SE13, SE14, SE15, SE21, SE22 and SE24 who are planning a renovation now or in the next 12 months. It maps the main housing stocks in this part of London to the briefs they generate, lays out the cost stack item by item, and flags the planning and structural realities specific to South-East London.

The four SE London housing stocks — and the renovation brief each one generates

South-East London is not one housing market. The stock varies sharply between postcodes, and the renovation brief follows the stock. Understanding which category your property sits in is the first thing to get right, because it shapes the structural scope, the planning context and the budget before a single trade is instructed.

Victorian and Edwardian terraces (SE5 Camberwell, SE14 New Cross, SE15 Peckham, SE13 Lewisham, SE22 East Dulwich, SE24 Herne Hill). This is the dominant stock across inner South-East London — mid-to-late Victorian rows built from the 1860s to 1900s, typically two storeys over a lower ground, three to four bedrooms, a rear outrigger, and a narrow rear garden. The most common brief is: strip to brick, rewire, replumb, add a rear extension or open the back, fit a new kitchen and bathroom, and put finished floors and a full repaint throughout. In rising markets like SE15 and SE14 a rear loft conversion comes alongside it. A neighbour is attached on each flank, so party-wall agreements are standard on any structural work.

Larger Victorian and Edwardian villas (SE3 Blackheath, SE21 Dulwich Village, SE22 East Dulwich — the larger stock). On the roads radiating from Blackheath village and around Dulwich Village and Park, the stock shifts to detached and semi-detached villas on plots broad enough for a wrap-around or sizeable rear extension. These are larger properties — 200 m² to 350 m² is common — and the full renovation scope is proportionally bigger. Conservation-area controls are dense here (Blackheath Conservation Area, Dulwich Estate private-estate restrictions), so the planning route is assessed before drawings are commissioned.

Georgian and early-Victorian stock (SE10 Greenwich, SE3 Blackheath village, SE1 Bermondsey/Borough — Georgian-row buildings). The formal Georgian terraces near Greenwich Park and the houses fronting Blackheath village carry earlier fabric — sash windows with slimmer glazing bars, original cornices and joinery, thinner walls with different moisture behaviour. Here the renovation sits on a restoration baseline: existing period detail preserved or reinstated, structural moves carefully considered, conservation consent anticipated. The Dulwich Estate is a separate private body with its own consent regime alongside the planning system.

Warehouse and riverside conversions (SE1 Borough/Bermondsey, SE10 Greenwich wharf buildings). These are converted Victorian and Edwardian commercial buildings — former warehouses, tanneries and river-trade premises — now residential flats. The brief is interior-led: reworking an open-plan within a structural grid of steel and cross-walls that can't simply be removed, fitting a kitchen and bathroom into exposed industrial fabric, and dealing with common-parts and lease restrictions before any work is instructed. Almost all of these buildings are listed or conservation-covered.

The renovation cost stack — room by room

A full renovation has a fixed sequence. The order matters because later trades depend on earlier ones: the structure has to be stable before wiring runs, wiring runs before plaster, plaster dries before floors, floors go down before final decoration. Here is what each stage typically costs in South-East London in 2026.

| Stage | Typical 2026 cost | |---|---| | Strip-out (all rooms to shell, skip hire, disposal) | £3,500–£7,500 | | Structural work (RSJ, altered openings, new lintels) | £4,500–£18,000 | | Full rewire (two-storey terrace) | £6,500–£14,000 | | Full replumb — mains, waste and heating pipework | £7,000–£16,000 | | Heating — new boiler and radiators | £4,500–£9,500 | | Rear extension (single-storey, incl. foundations and roof) | £38,000–£72,000 | | Full internal replaster | £5,000–£11,000 | | New kitchen — supply and fit, mid-spec | £12,000–£32,000 | | New kitchen — supply and fit, high-spec | £32,000–£48,000 | | Bathroom refit — supply and fit, per room | £9,500–£22,000 | | Engineered oak or stone flooring throughout (per room) | £3,000–£9,000 | | Period joinery repair and reinstatement | £2,500–£12,000 | | Full repaint, all rooms (labour and materials) | £4,500–£10,000 | | Whole-house total, SE Victorian terrace (~100 m²), mid-spec | £130,000–£195,000 | | Whole-house total, Blackheath/Dulwich villa (~250 m²), mid-spec | £260,000–£475,000 |

These figures assume mid-specification throughout — standard-quality floor finishes, a standard trade kitchen, and no unusual structural findings. A high-spec finish (engineered stone worktops, bespoke cabinetry, stone flooring) adds roughly 20–35% to the relevant line items.

What moves the price in SE London

Three factors specific to South-East London drive renovation costs above the London average — or below it — more than any choice of worktop or tap.

Structural scope. Many Victorian terraces in Camberwell, Peckham and New Cross still have their original rear-outrigger configuration: a narrow, single-storey back addition that cuts the kitchen off from the garden. Opening it up — removing the flank wall between the outrigger and the garden — requires a structural beam and engineered foundations, and it drives significantly more value per pound spent than any other single intervention. Get the structural scope clear and engineered before you budget, because a quote without a steel specification is not a complete quote.

Conservation area and estate restrictions. SE London has one of the highest concentrations of conservation areas of any London quadrant. Blackheath, Camberwell Grove, Dulwich Village, and the Greenwich Conservation Area all control external alterations — windows, doors, render, extensions visible from the road. On the Dulwich Estate, the Estate Office adds another consent layer on top of the planning system. These controls don't stop renovation work; they add a design and consent stage that needs to be sequenced early, before builders are instructed. A lawful development certificate (£103 application fee) is worth obtaining even on permitted-development works in these areas — it removes ambiguity for a future sale.

Scope creep from structural discovery. Victorian terraces in SE London were built in a range of conditions. On London clay — which runs under most of Lewisham, Catford and the outer SE London postcodes — seasonal ground movement is a known issue, and foundations under Victorian properties are often shallower than modern standards require. Any rear extension or structural alteration should include a structural engineer's assessment of the existing foundations before the build starts, not after.

Planning and conservation — the SE London reality

For most whole-house renovations that stay within the existing footprint, no planning permission is needed. Interior work — rewiring, replumbing, new kitchens, new bathrooms, flooring, replastering, repainting — is permitted across all tenures and all designations.

Extensions are different. A single-storey rear extension up to three metres deep (or four metres on a detached house) can proceed as permitted development, subject to the usual conditions on height, materials, and the rear-wall position. But two common SE London situations change that:

1. Conservation area. Anything extending the side of a property, or a rear extension visible from a public highway, requires planning permission in a conservation area regardless of size. The conservation areas around Blackheath village, Camberwell Grove (SE5), Dulwich Village (SE21), and Greenwich (SE10) cover substantial residential streets. Check your postcode at the London Borough of Southwark, Lewisham, or Royal Borough of Greenwich planning portal before assuming permitted development applies.

2. Article 4 directions. Some streets in SE London have had permitted-development rights removed by Article 4 direction — common in tightly managed conservation areas. This means even small external changes (window replacement, painting over brick) require consent. Your planning search will confirm this.

For extensions that do not need a full planning application, a lawful development certificate (£103 fee, applied to the relevant borough) is strongly advisable. It gives you written confirmation from the council that the work is permitted, and lenders and solicitors regularly ask for it on a sale.

The realistic timeline for a South-East London house renovation

How long it takes depends more on the planning and party-wall sequence than on the build itself. Here is a realistic programme for a full-house renovation of a Victorian terrace in SE London, with a rear extension included.

| Phase | Duration | |---|---| | Survey, structural engineer assessment, and drawings | 4–6 weeks | | Planning application (if needed, conservation area) | 8–13 weeks (council determination period) | | Party-wall notice served and neighbour response period | 2–8 weeks (minimum 14-day window after service) | | Procurement, programme, and start-date confirmation | 2–3 weeks | | Strip-out, groundworks and structural works | 4–7 weeks | | First fix — wiring, pipework, heating | 3–5 weeks | | Plaster, screed and drying time | 2–4 weeks | | Second fix, kitchen, bathrooms, joinery | 4–8 weeks | | Floors, decoration and snagging | 2–4 weeks | | Total from survey to handover, no planning needed | 18–26 weeks | | Total from survey to handover, with planning application | 28–38 weeks |

The party-wall process is the most commonly underestimated variable. Neighbours on each side of a SE London terrace each get a separate notice and a separate 14-day window to respond. If either appoints their own surveyor, a formal award is agreed before the build proceeds — budget 6–8 additional weeks if that happens, and set the fees aside (typically £700–£1,400 per adjoining owner). Serve notices the day the design is locked, not the week the builder is due to start.

All-in cost comparison — SE London terrace vs villa

Two worked examples to frame the total, both at mid-specification.

| Scope | SE Victorian terrace ~100 m² (e.g. SE15 Peckham, SE14 New Cross) | Blackheath or Dulwich villa ~250 m² (e.g. SE3, SE21) | |---|---|---| | Strip-out and disposal | £4,000–£6,500 | £8,000–£14,000 | | Structural work / RSJ | £5,500–£14,000 | £9,000–£22,000 | | Rear extension (single-storey) | £42,000–£68,000 | £55,000–£85,000 | | Full rewire | £7,000–£12,000 | £12,000–£22,000 | | Full replumb + heating | £9,000–£18,000 | £16,000–£30,000 | | Full replaster | £5,000–£9,000 | £10,000–£20,000 | | Kitchen, mid-spec | £14,000–£30,000 | £20,000–£45,000 | | Bathrooms (2–3 rooms) | £19,000–£50,000 | £28,000–£75,000 | | Floors throughout | £9,000–£22,000 | £20,000–£50,000 | | Decoration throughout | £5,000–£9,000 | £9,000–£18,000 | | Fees (engineer, LDC, party-wall) | £4,500–£9,000 | £6,000–£14,000 | | Total all-in | £130,000–£195,000 | £260,000–£475,000 |

The villa figure widens significantly at the high end because the surface area grows faster than the room count — more square metres of plaster, floor and decoration compound through the budget. A high-spec finish (stone flooring, bespoke kitchen and joinery, wet rooms) pushes both figures 25–40% higher.

FAQ

How much does a full house renovation cost in South-East London in 2026? For a Victorian terrace of around 100 m² in SE15, SE14, SE5 or SE13, a whole-house renovation — full rewire and replumb, rear extension, new kitchen, refitted bathrooms, floors, replaster and redecoration — typically costs between £130,000 and £195,000 at mid-specification. A larger Blackheath or Dulwich villa of around 250 m² runs from around £260,000 to £475,000. High-spec finishes increase both figures by 25–40%.

Do I need planning permission to renovate my house in SE London? For internal work — rewiring, replumbing, new kitchen, new bathrooms, replastering, repainting — no planning permission is needed. A rear extension up to three metres deep (four on a detached house) may proceed as permitted development, subject to height and materials rules. Conservation-area properties (common in SE3 Blackheath, SE21 Dulwich Village, SE5 Camberwell Grove, SE10 Greenwich) face additional controls on side extensions and anything visible from a public highway. A lawful development certificate (£103 fee) confirms permitted-development status in writing and protects a future sale.

What is the party-wall process and do I need to go through it? The Party Wall etc. Act 1996 applies whenever you carry out structural work at or near a shared boundary, excavate within three metres of a neighbour's foundations, or alter a party wall itself. For a SE London terrace renovation with a rear extension or loft, it almost always applies. You serve written notice on each adjoining owner; they have 14 days to agree or to appoint a surveyor. An agreed notice costs nothing beyond the service; a disputed award requires surveyors (allow £700–£1,400 per neighbour). Serve notices as soon as the design is confirmed — not when the builder is due to start.

How long does a full house renovation take in South-East London? On a Victorian terrace with a rear extension, no planning application needed: roughly 18 to 26 weeks from survey to handover. Add 8–13 weeks if a conservation-area planning application is required, and 6–8 weeks if a neighbour contests under the party-wall process. The on-site build runs 14–20 weeks; the design, notices and procurement take four to six weeks up front.

What are the conservation-area rules in Blackheath and Dulwich? Blackheath Conservation Area covers the village and surrounding residential streets in SE3, and is administered by the Royal Borough of Greenwich and London Borough of Lewisham depending on the exact boundary. Dulwich Village sits partly within a conservation area and partly on the Dulwich Estate, which has its own consent regime operated by the Dulwich Estate Office for properties held under a Scheme of Management. In both areas, any extension visible from a public highway — including a side extension — requires planning permission rather than permitted development. External materials, window replacement and alterations to front elevations are closely controlled. We check the exact designation and the estate boundary at the survey before commissioning drawings.

Is it worth renovating a Victorian terrace in Peckham, Camberwell or New Cross in 2026? The SE London terrace market has held up through sustained buyer demand in SE15, SE14 and SE5, driven partly by relative value compared to inner south-west London. A properly-scoped renovation — full structural, M&E, kitchen and bathroom, with good-quality surfaces — adds measurable value because the finished house is materially different from the unimproved stock around it. The calculation works best where the entry price reflects the current condition and the renovation is priced realistically from the outset. A professional survey and a detailed contractor quote, before exchange, are the two things that prevent an underfunded renovation from losing value rather than gaining it.

Can PrimeCraft Surface Solutions manage the full renovation project? Yes. We manage the full programme — structural engineer, trades, party-wall notices, planning applications where required, and the specialist sub-contractors for the period-restoration elements common in SE London's Georgian and early-Victorian stock. You deal with one project manager from the initial survey through to handover, and the start and finish dates are confirmed in writing before work begins.

Arrange a site visit

A renovation in SE London cannot be quoted accurately from a postcode and a floor plan. The structural configuration, the degree of period detail to preserve, the conservation-area controls, the party-wall position and the condition of the existing services all vary house by house — even within the same street.

PrimeCraft Surface Solutions covers SE1, SE3, SE5, SE10, SE13, SE14, SE15, SE21, SE22, SE24 and the wider South-East London boroughs of Southwark, Lewisham and Greenwich, from Camberwell and New Cross out to Dulwich. We visit the property, assess the full scope with a structural engineer where the brief requires it, and come back with a quote broken down stage by stage, with dates set before we start. For the wider picture, read our full cost breakdown for London renovations, our guide to Victorian house renovations, and — if a rear infill is part of your plan — how a side-return extension reshapes the ground floor. When you're ready, get an estimate for a first range, or arrange a free site visit directly.