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House Renovation Cost per m²: The Complete 2026 UK Guide

If you are pricing a whole-house renovation in 2026, the cost per square metre is the fastest way to sense-check your budget. It is the figure mortgage lenders ask for, the metric builders use to benchmark quotes, and the number that tells you whether your plans are realistic before you commit to a structural surveyor.

In 2026, whole-house renovations in the UK cost between £1,500 and £3,000 per square metre for a mid-range, full-gut renovation of a typical 3-bedroom property. Light cosmetic refreshes start at £800 per m², while high-end renovations with bespoke joinery, smart home integration, and underfloor heating throughout can reach £4,000–£6,000 per m². All figures include VAT at 20% on labour and materials unless stated otherwise.

This guide breaks down exactly what is included in that per-m² figure, how it shifts by renovation type, property size, and location, and how to calculate an accurate total for your specific home. All cost data is consistent with 2026 industry figures from Checkatrade, the Federation of Master Builders, and the HomeOwners Alliance.

Table of Contents

  1. The Headline Figure: Cost per m² in 2026
  2. Cost per m² by Renovation Type
  3. Cost per m² by Property Size
  4. Regional Price Variations per m²
  5. What Is Included in the Per-m² Price?
  6. What Is NOT Included?
  7. Room-by-Room Cost Breakdown
  8. Factors That Increase Cost per m²
  9. How to Reduce Your Cost per m²
  10. Renovation vs. Extension vs. New Build per m²
  11. Getting an Accurate Quote
  12. Frequently Asked Questions

The Headline Figure: Cost per m² in 2026

The UK average for a mid-range whole-house renovation in 2026 sits at roughly £2,000 per m² of total floor area. Here is how that breaks across the renovation spectrum:

Renovation Level Cost per m² Typical Total (100 m² house) What You Get
Light Refresh £800 – £1,500 £80,000 – £150,000 Redecoration, new flooring, basic kitchen and bathroom refresh, minor repairs, new sockets and light fittings
Medium Renovation £1,500 – £2,500 £150,000 – £250,000 New kitchen, new bathrooms, partial rewiring, replastering, new doors, new boiler, upgraded windows
Full Gut Renovation £2,500 – £4,000 £250,000 – £400,000 Back-to-brick strip-out, full rewiring and replumbing, new windows and doors throughout, new kitchen, new bathrooms, new flooring, full decoration, minor structural alterations
Premium Renovation £4,000 – £6,000+ £400,000 – £600,000+ Everything in a full gut, plus bespoke joinery, underfloor heating throughout, smart home systems, air source heat pump, premium materials, architect-designed details

These figures represent construction and fitting costs inclusive of VAT at 20%. They do not include professional fees, contingency, or furnishings. For a realistic total budget, add 15–20% on top to cover design, planning, structural engineering, and a contingency fund.

Sources: Checkatrade Cost Guides 2026; FMB Pricing Survey; HomeOwners Alliance.

Cost per m² by Renovation Type

The scope of your renovation is the single biggest driver of cost per m². Below is how each level compares, with a breakdown of what is typically included and what pushes the price higher.

Light Refresh (Cosmetic Renovation)

A light refresh assumes the existing electrics, plumbing, windows, and heating system are serviceable for another 10–15 years. It is the most cost-effective way to improve a property's appearance and saleability without heavy disruption.

Medium Renovation

The medium renovation is the most common scope for UK homeowners in 2026. It delivers a fully modernised home without the cost and complexity of stripping back to brick. Most medium renovations take 8–16 weeks depending on property size.

Full Gut Renovation

Full gut renovations are labour-intensive and disruptive. Most homeowners move out for the duration. The per-m² cost is higher because every surface, system, and fixture is replaced. However, the result is essentially a new home inside an existing shell.

Premium Renovation

Premium renovations often involve an architect or interior designer from the outset. The per-m² cost reflects both material quality and the additional labour required for bespoke detailing.

Cost per m² by Property Size

The size of your property affects the cost per m² in a counter-intuitive way. Very small and very large properties both carry cost inefficiencies.

Property Size Typical Floor Area Light Refresh Medium Renovation Full Gut Premium
1-bed flat 40–55 m² £32,000–£83,000 £60,000–£138,000 £100,000–£220,000 £160,000–£330,000
2-bed flat/house 60–80 m² £48,000–£120,000 £90,000–£200,000 £150,000–£320,000 £240,000–£480,000
3-bed house 90–120 m² £72,000–£180,000 £135,000–£300,000 £225,000–£480,000 £360,000–£720,000
4-bed house 130–170 m² £104,000–£255,000 £195,000–£425,000 £325,000–£680,000 £520,000–£1.02m
5-bed house 180–250 m² £144,000–£375,000 £270,000–£625,000 £450,000–£1.0m £720,000–£1.5m

Why smaller properties have a higher per-m² cost:

A 50 m² two-bedroom flat still requires a full kitchen, a full bathroom, a new boiler, and a consumer unit — the same fixed costs as a 120 m² house. These fixed costs are spread over fewer square metres, pushing the per-m² rate higher. A new boiler installation costs £3,000–£5,000 whether you heat 50 m² or 150 m².

Why very large properties do not always see lower per-m² costs:

Above 200 m², renovation projects often include premium features — multiple bathrooms, bespoke kitchens, home offices, utility rooms, and landscaped gardens. These additions push the per-m² cost back up, even though the base construction rate might drop slightly.

Regional Price Variations per m²

Labour and material costs vary significantly across the UK. The table below shows the cost per m² for a mid-range full gut renovation by region in 2026.

Region Cost per m² (mid-range) Premium vs. National Average
London (Zones 1–3) £2,800–£4,500 +30–50%
London (Outer) £2,400–£3,800 +20–30%
South East £2,400–£3,800 +20–30%
South West £2,000–£3,200 National average
East Anglia £2,000–£3,000 National average
East Midlands £1,800–£2,800 -5–10%
West Midlands £1,800–£2,800 -5–10%
North West £1,600–£2,600 -10–15%
North East £1,500–£2,400 -10–20%
Yorkshire & Humber £1,600–£2,600 -10–15%
Wales £1,600–£2,600 -10–15%
Scotland £1,500–£2,500 -10–20%
Northern Ireland £1,500–£2,400 -10–20%

London

A full gut renovation of a 100 m² Victorian terrace in Clapham or Hackney typically costs £280,000–£450,000 including VAT. London's premium reflects higher labour rates, congestion and parking restrictions, limited access for skips and materials, and the prevalence of period properties requiring specialist trades (lime plastering, sash window restoration, heritage roofing).

South East England

Surrey, Berkshire, and Buckinghamshire sit just below London but still carry a 20–30% premium. The high concentration of affluent homeowners drives demand for premium finishes, and skilled trades are in short supply.

Midlands & North of England

Cities like Manchester, Birmingham, Leeds, and Sheffield benefit from a competitive builder market and lower living costs. A 100 m² full gut renovation in Manchester might cost £160,000–£260,000 compared to £250,000–£400,000 nationally.

Scotland & Wales

Scotland and Wales offer competitive pricing, but the building warrant and planning process differs. In Scotland, most substantial renovations require a building warrant, which adds £500–£1,500 in fees but does not significantly affect the construction cost per m². Wales has similar requirements through local authority building control.

Sources: FMB Regional Pricing Survey 2026; Checkatrade Cost Guides.

What Is Included in the Per-m² Price?

When a builder or renovator quotes £2,500 per m² for a full gut renovation, they usually mean the following is included:

Always ask for a written schedule of works. Some renovators exclude scaffolding, waste removal, or kitchen appliances from their per-m² rate, which can add £5,000–£15,000 to the final bill.

What Is NOT Included?

The per-m² construction cost does not cover everything. Budget separately for:

Item Cost Range
Architect / design fees 5–10% of build cost (£12,500–£40,000 on a £250k–£400k project)
Structural engineer £500 – £2,500
Planning application (if required) £206 – £462
Building regulations / building warrant £200 – £1,500
Party wall agreement £700 – £2,000 per neighbour
Asbestos survey and removal £500 – £3,000+
Damp survey and treatment £500 – £5,000
Tree survey (if required) £300 – £800
Party wall surveyor £700 – £2,000
Underfloor heating (if not included) £1,500 – £4,000 per zone
Smart home system £2,000 – £10,000
Air source heat pump £8,000 – £15,000
Bespoke joinery (wardrobes, storage, media units) £5,000 – £20,000
Window treatments (curtains, blinds, shutters) £2,000 – £8,000
Furniture and soft furnishings £5,000 – £30,000+
Contingency 10–15% of total

On a typical £250,000 full gut renovation, these extras can add £50,000–£100,000. That is why the total project cost is often 25–35% higher than the headline per-m² construction rate.

Note on VAT: All construction costs quoted in this guide include VAT at 20% on labour and materials. However, if your renovation qualifies as a "new build" — for example, converting a commercial property into a dwelling, or rebuilding a dwelling after demolition — some or all of the work may be zero-rated for VAT. Always confirm VAT status with your builder or accountant before committing.

Room-by-Room Cost Breakdown

Understanding where the money goes room by room helps you prioritise if your budget is tight. The figures below are for a full gut renovation of a typical 3-bedroom, 100 m² house.

Room / Element Typical Cost % of Total
Kitchen (units, worktops, appliances, fitting) £15,000 – £35,000 12–18%
Bathroom (suite, tiling, extraction) £5,000 – £12,000 4–6%
En-suite or second bathroom £4,000 – £10,000 3–5%
Downstairs WC £2,000 – £4,000 1–2%
Electrics (full rewire) £6,000 – £12,000 5–8%
Plumbing and heating (new boiler, radiators, pipework) £8,000 – £15,000 6–10%
Windows and external doors (UPVC) £8,000 – £18,000 6–12%
Internal doors and ironmongery £2,000 – £5,000 1–3%
Plastering (all walls and ceilings) £6,000 – £12,000 5–8%
Flooring (all rooms) £5,000 – £12,000 4–6%
Decoration (all rooms) £3,000 – £6,000 2–4%
Structural work (steels, lintels, minor alterations) £3,000 – £8,000 2–5%
Strip-out and waste removal £2,000 – £5,000 1–2%
Scaffolding and access £1,500 – £4,000 1–2%
Subtotal (construction) £70,500 – £168,000 100%

For a 100 m² property, the room-by-room breakdown above aligns with a per-m² cost of £1,800–£2,500 for a medium renovation, or £2,500–£4,000 for a full gut with higher-spec kitchens and bathrooms.

Factors That Increase Cost per m²

Several property-specific and design factors push your project toward the upper end of the price range.

1. Age and Condition of the Property

Properties built before 1919 (Victorian and Edwardian) often require specialist trades: lime plaster instead of gypsum, sash window restoration, lead flashing, and heritage roofing. These can add 15–25% to the per-m² cost. Post-war properties (1945–1965) may contain asbestos, which requires licensed removal at £500–£3,000+.

2. Structural Issues

Subsidence, sagging floors, rotten joists, and failing lintels are common in older homes. Remedial structural work can add £5,000–£20,000 to the project. Underpinning — required for serious subsidence — can cost £10,000–£50,000 depending on the extent.

3. Damp and Timber Decay

Rising damp, penetrating damp, and dry rot are common in unrenovated properties. A full damp-proof course, tanking, and timber replacement can add £3,000–£10,000. Always commission a full building survey before buying a property to renovate.

4. Listed Buildings and Conservation Areas

If your property is listed or in a conservation area, you will need consent for almost every change. This extends timelines, adds professional fees, and restricts materials. Expect a 20–40% premium on the per-m² cost.

5. Open-Plan Layouts

Removing load-bearing walls to create open-plan kitchens or through-lounges requires structural steel beams (RSJs or UB sections). A single steel installation costs £1,500–£3,000 including labour. Complex multi-steel configurations can reach £5,000–£10,000.

6. Underfloor Heating

Wet underfloor heating throughout a 100 m² house costs £8,000–£15,000 installed — roughly £80–£150 per m². It is more efficient than radiators but adds significantly to upfront cost. Electric mats are cheaper (£50–£100 per m²) but more expensive to run.

7. High Glazing Ratios

Large bi-fold doors, roof lanterns, and floor-to-ceiling windows add cost. A 3-metre set of aluminium bi-fold doors costs £3,000–£6,000. A large roof lantern adds £2,000–£5,000. These are often worth the investment for light and garden connection but push the per-m² rate up.

8. Access Constraints

Narrow streets, limited parking, or properties with no rear access increase scaffolding costs and make material deliveries harder. In central London and Brighton, some projects require crane hire for steel beams and skips, adding £1,500–£5,000.

How to Reduce Your Cost per m²

A lower cost per m² does not have to mean lower quality. Here are proven ways to control costs without cutting corners.

1. Prioritise High-Impact Rooms

If your budget is limited, focus on the kitchen, main bathroom, and living spaces. Bedrooms and hallways can be refreshed cosmetically for a fraction of the cost of a full gut. A strategic medium renovation of key rooms costs significantly less per m² than a whole-house strip-out.

2. Retain the Existing Layout

Moving kitchens, bathrooms, and soil stacks is expensive. Keeping the kitchen where it is, retaining the bathroom locations, and avoiding soil pipe relocations can save £5,000–£15,000 in plumbing costs. The same applies to electrics — retaining the consumer unit location avoids costly cable rerouting.

3. Phase the Work

If you cannot afford a full gut renovation upfront, phase it. Phase 1 might cover structural work, electrics, and plumbing. Phase 2 covers kitchens and bathrooms. Phase 3 covers decoration and flooring. Spreading costs over 12–24 months makes a large project more manageable.

4. Use Standard Materials

Bespoke handmade tiles, imported stone, and custom steelwork look impressive but inflate costs. Standard porcelain tiles, British-made bricks, and UK-supplied windows offer excellent performance at a lower price point. A Howdens or Wickes kitchen with quartz worktops delivers 90% of the functionality of a bespoke kitchen at 40% of the cost.

5. Get Multiple Quotes

The FMB recommends three detailed quotes as a minimum. On a £250,000 renovation, the difference between the lowest and highest quote can be £50,000–£80,000. Ensure each quote is based on the same schedule of works so you are comparing like for like.

6. Check for VAT Zero-Rating

If your project involves converting a non-residential building into a dwelling, or demolishing and rebuilding a dwelling, you may qualify for VAT zero-rating. This saves 20% on labour and materials — a £50,000 saving on a £250,000 build. Consult a VAT specialist or your accountant early in the process.

7. Book in the Off-Season

Builders are quieter in January and February. Booking during these months can secure a 5–10% discount compared to the spring and summer rush. Internal finishing work can continue through the colder months.

8. Start with a Free Render

Before you spend money on a building survey or architect, get an address-specific cost estimate. Our free render tool analyses nearby approved planning applications and generates an instant cost estimate and 3D visualisation for your property. No credit card required.

Renovation vs. Extension vs. New Build per m²

Homeowners often weigh a whole-house renovation against moving to a new home, building an extension, or demolishing and rebuilding. Here is how the per-m² costs compare.

Project Type Cost per m² Total (100 m²) Key Advantages
Light refresh £800 – £1,500 £80,000 – £150,000 Lowest disruption; stay in the property; quick turnaround
Medium renovation £1,500 – £2,500 £150,000 – £250,000 Modernises key systems; good resale value; mid-level disruption
Full gut renovation £2,500 – £4,000 £250,000 – £400,000 Like a new home; retains existing footprint; no planning for internal work
Extension only £1,800 – £2,800 £36,000 – £56,000 (20 m²) Adds space; often permitted development; focused disruption
New build £2,000 – £3,500 £200,000 – £350,000 Full customisation; latest building regs; no legacy issues
Demolish and rebuild £2,500 – £4,000 £250,000 – £400,000 New home on existing plot; retains garden and location; VAT zero-rated

Key insight: A full gut renovation costs roughly the same per m² as a new build but avoids the cost of land acquisition. If you love your location and your plot, renovating or rebuilding is usually more cost-effective than buying a equivalent new home — particularly in high-value areas like London and the South East.

For a full cost breakdown of extension types, see our extension cost guide.

Getting an Accurate Quote

The per-m² figures in this guide are a solid starting point, but every property is unique. The most reliable way to budget is to get a detailed, itemised quote based on your specific home and condition.

Traditional routes involve months of architect drawings, building surveys, and builder visits. Our platform compresses this into minutes.

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Frequently Asked Questions

What is a good cost per m² for a house renovation in the UK?

A reasonable benchmark in 2026 is £1,800–£2,500 per m² for a mid-range renovation of a typical 3-bedroom property. Light cosmetic refreshes start at £800/m², while full gut renovations with high-end finishes can reach £4,000–£6,000/m². (Source: Checkatrade, FMB)

Why do renovation costs vary so much per m²?

Variation comes from the property's age and condition, the scope of work, location, finish quality, and site access. A light refresh of a modern flat in Leeds costs far less per m² than a full gut renovation of a Victorian terrace in London with damp issues and structural work.

Is the cost per m² figure inclusive of VAT?

Yes. All per-m² figures in this guide include VAT at 20% on labour and materials unless stated otherwise. However, some smaller firms or labour-only contractors may quote excluding VAT. Always confirm whether a quote includes VAT before comparing. Renovations that qualify as "new builds" may be zero-rated for VAT.

Does cost per m² include design and planning fees?

No. The per-m² figure typically covers construction and fitting only. Design fees, planning applications, building regulations, and professional services add 15–20% on top. Our Design + Planning package bundles these for a fixed £2,495.

How do I calculate the total cost from cost per m²?

Multiply the cost per m² by the total floor area of your property. For example, a 100 m² house at £2,500/m² equals £250,000 in construction costs. Then add 15–20% for fees, furnishings, and contingencies, giving a total budget of £287,500–£300,000.

What is the cheapest cost per m² achievable?

A light cosmetic refresh in a low-cost region can reach £800–£1,000 per m². However, this excludes any system upgrades (electrics, plumbing, heating, windows). Be cautious of quotes below £800/m² for anything beyond redecoration — they may indicate corner-cutting or unqualified labour.

How does London compare to the rest of the UK per m²?

London costs 30–50% more per m² than the national average. A full gut renovation that costs £2,500/m² in Leeds might cost £3,250–£4,000/m² in London due to labour premiums, access constraints, and the prevalence of period properties requiring specialist trades.

Can I get a fixed price per m² from a builder?

Some builders offer fixed-price contracts based on a per-m² rate, but most prefer detailed quotes based on a schedule of works. A fixed per-m² rate can work for straightforward projects but may exclude extras like unforeseen structural work, asbestos removal, or damp treatment. Always read the contract carefully.

Is it cheaper to renovate or extend?

Extensions and renovations serve different purposes. An extension adds floor area at £1,800–£2,800/m². A renovation improves existing space at £1,500–£4,000/m². If you need more space, extend. If your layout works but the finishes are tired, renovate. Many homeowners do both — renovate the existing house and add a rear extension.

What hidden costs push up the per-m² price?

Unseen structural issues, asbestos, damp, rot, party wall agreements, and access difficulties can all add unexpected costs. A 10–15% contingency fund is essential. Our free render tool flags common local issues before you commit.

Should I renovate or demolish and rebuild?

If your property is structurally sound, renovation is usually cheaper and less disruptive. If the property has serious structural defects, outdated foundations, or a poor layout that cannot be fixed without major work, demolishing and rebuilding may be more cost-effective. Rebuilding also qualifies for VAT zero-rating, which saves 20% on construction costs.

How long does a whole-house renovation take?

A light refresh takes 2–4 weeks. A medium renovation takes 8–16 weeks. A full gut renovation takes 16–32 weeks depending on property size, complexity, and weather. The design and pre-construction phase adds 4–12 weeks before work starts. With our platform, you can compress the design phase to 48 hours for a Concept Package.

Do I need planning permission for a renovation?

Internal renovations generally do not require planning permission. However, you will need Building Regulations approval for structural work, electrics, plumbing, and insulation. If your property is listed or in a conservation area, you may need listed building consent or conservation area consent for internal alterations. Our platform checks your address and tells you exactly which permissions apply.

Last updated: 15 January 2026. Cost figures are based on industry data from Checkatrade, the Federation of Master Builders, and the HomeOwners Alliance, adjusted for inflation and 2026 market conditions. All prices include VAT at 20% on labour and materials unless stated otherwise. VAT zero-rating may apply to new build conversions or demolish-and-rebuild projects — consult a qualified accountant. Cost per m² is an average and actual prices vary by location, specification, and contractor. Always obtain detailed quotes before committing to a project.

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