What is a house renovation?

A house renovation brings an older or tired home up to date. It can include rewiring, a new heating system, replastering, new floors, windows, kitchens and bathrooms, and changes to the layout. A full renovation is often combined with an extension or loft conversion.
How much does a house renovation cost in Blackheath?
In Blackheath, a house renovation typically costs £1,150–£2,350 per m² for a medium to full renovation, including VAT at 20% (5% may apply to homes empty for two years or more). For a typical 90 m² project that is roughly £103,500–£211,500. Prices across London are typically 30% above the UK average for this kind of work, which is reflected in the range for Blackheath. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (63 m²) | £72,500–£148,000 |
| Typical project (90 m²) | £103,500–£211,500 |
| Larger project (126 m²) | £145,000–£296,000 |
| Rate per m² | £1,150–£2,350 |
The biggest cost drivers are:
- Whether you live in during the work
- Kitchens and bathrooms
- Extent of rewiring and replumbing
- Structural and damp repairs
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a house renovation in Blackheath?
Before anything is built in Blackheath, we confirm which approvals apply in England. In England internal renovation usually does not need planning permission unless the house is listed, when listed building consent covers internal work too. Notifiable work such as rewiring, structural changes, new windows and heating must meet building regulations.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
We check this for your address before design work starts, so there are no surprises later.
What we handle
The work we manage on a house renovation:
- Rewiring and heating upgrades
- Building control for notifiable work
- Plastering and boarding
- Condition survey and scope of works
- Decoration
- Structural repairs and damp treatment
How long does it take?
Expect 8 to 20 weeks on site depending on scope. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in Blackheath
Victorian and Edwardian terraces dominate many London streets, which is why side return, wraparound and mansard projects are so common here.
Projects in Blackheath (SE3) are surveyed in person before we quote, so the price reflects your actual property.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about house renovations in Blackheath
How long does a full renovation take?
Typically 8 to 20 weeks on site depending on the size of the house and scope.
Who approves a house renovation in Blackheath?
Planning matters in Blackheath go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
How much does a house renovation cost in Blackheath?
In Blackheath, a house renovation typically costs £1,150–£2,350 per m² for a medium to full renovation, including VAT at 20% (5% may apply to homes empty for two years or more). A typical 90 m² project comes to roughly £103,500–£211,500. Your fixed price depends on the survey and drawings.
Is VAT reduced on renovations?
Usually not; the standard 20% rate applies. A reduced 5% rate can apply when renovating a home that has been empty for at least two years.
Do you renovate listed buildings?
Yes, with listed building consent and appropriate materials.
