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 New Malden?
In New Malden, 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. The guide for New Malden reflects typical costs in London, roughly 30% above the UK-wide figure. 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 |
Your quote will depend mainly on:
- Windows and doors
- Whether you live in during the work
- Finishes
- Structural and damp repairs
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for a house renovation in New Malden?
Whether you need planning permission depends on your house and its location 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.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
What we take care of:
- Structural repairs and damp treatment
- Kitchens and bathrooms
- Building control for notifiable work
- Condition survey and scope of works
- Decoration
- Plastering and boarding
How long does it take?
Allow 8 to 20 weeks on site depending on scope. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.
Building in New Malden
Many London boroughs have conservation areas and detailed design guides, so early design advice saves time at the planning stage.
Our New Malden coverage includes postcode districts KT3, and we also work in nearby places such as Surbiton, Morden and Wimbledon.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about house renovations in New Malden
Who approves a house renovation in New Malden?
Planning matters in New Malden go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
How long does a full renovation take?
Typically 8 to 20 weeks on site depending on the size of the house and scope.
Can I live in the house during a renovation?
For light work, yes. For a full renovation, most clients move out for some or all of the job.
Do you renovate listed buildings?
Yes, with listed building consent and appropriate materials.
How much does a house renovation cost in New Malden?
In New Malden, 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.
