Renovating a Victorian Terrace in London: Real Costs for 2026

Headline figures: what a full renovation typically costs

For a typical three bedroom Victorian terrace in London, a full renovation usually lands somewhere between £1,500 and £2,500 per square metre. On a house of around 90 to 110 square metres, that means roughly £140,000 to £275,000 for a back to brick refurbishment with a new kitchen, bathroom, rewire, replumb and redecoration throughout. A lighter cosmetic refresh, keeping the existing layout and services, can come in far lower, often £40,000 to £70,000.

The single biggest factor is how much of the original fabric you keep. A house that has been maintained over the decades needs far less structural work than one that was last touched in the 1970s. Damp, decayed timber and dated wiring are the three things most likely to push a quote upwards once work begins.

• Cosmetic refresh (decorating, flooring, minor repairs): £40,000 to £70,000
• Full refurbishment without extending: £140,000 to £275,000
• Rear or side return extension: £60,000 to £120,000 on top
• Loft conversion with dormer: £55,000 to £90,000 on top

Room by room and trade by trade breakdown

A full rewire on a three bedroom terrace typically costs £6,000 to £10,000, and replumbing with a new boiler is usually £8,000 to £14,000. These are worth doing while walls are open, because retrofitting later means redoing plaster and decoration you have already paid for. Replastering throughout, common in Victorian houses where the original lime plaster has blown, tends to run £10,000 to £20,000.

Kitchens vary more than anything else. A sensible mid range kitchen, supplied and fitted, is usually £15,000 to £30,000 in London, while a family bathroom lands around £8,000 to £15,000 depending on tiling and sanitaryware. Windows are another big line: replacing sash windows with quality timber double glazed units often costs £1,500 to £3,000 per window, though refurbishing originals can be cheaper and keeps the character.

The Victorian specific surprises to budget for

Victorian terraces hide problems that newer houses simply do not have. Solid brick walls with no cavity mean damp management matters: failed pointing, bridged damp proof courses and blocked air bricks are common, and proper remediation can cost £2,000 to £10,000 depending on extent. Original floor joists near ground level sometimes have rot at the ends where they meet damp brickwork.

Roofs are the other frequent surprise. Many terraces still carry their original slate roof on aged battens, and a full reroof typically costs £12,000 to £25,000. In conservation areas, which cover a fair amount of East London, the council may require matching slates and traditional details, which adds cost. We always recommend holding a contingency of 10 to 15 percent of the total budget, because until floors come up and plaster comes off, nobody can see everything.

• Damp and timber repairs: £2,000 to £10,000 plus
• Full reroof in slate: £12,000 to £25,000
• Structural work such as chimney breast removal: £2,500 to £7,000 with proper steels and building control sign off
• Asbestos removal (common in older textured coatings and pipe lagging): £1,000 to £5,000

How to keep costs under control

Sequencing saves money. Doing the messy structural, damp and services work first, in one coordinated phase, is far cheaper than returning to it after decoration. Fixing the layout early and resisting mid project changes is the other big one, since variations mid build are where budgets most often unravel.

Get a detailed written quote with a clear scope, not a one line estimate, and ask what is excluded as well as included. A proper builder should be happy to break down provisional sums for things like the kitchen and bathroom so you can see where your money goes. Local knowledge helps too: a builder familiar with East London terraces will spot the usual problem areas at survey stage rather than halfway through the job.