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 Brentwood?
In Brentwood, a house renovation typically costs £950–£1,900 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 £85,500–£171,000. Building costs in the East of England run about 6% above the UK average, and the figures for Brentwood are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (63 m²) | £60,000–£119,500 |
| Typical project (90 m²) | £85,500–£171,000 |
| Larger project (126 m²) | £119,500–£239,500 |
| Rate per m² | £950–£1,900 |
The main things that change the cost:
- Finishes
- Kitchens and bathrooms
- Whether you live in during the work
- Windows and doors
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for a house renovation in Brentwood?
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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
What we take care of:
- Structural repairs and damp treatment
- Plastering and boarding
- Decoration
- Joinery, doors and floors
- Kitchens and bathrooms
- Rewiring and heating upgrades
How long does it take?
Expect 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 Brentwood
Across the East of England, 1930s and post-war semis, newer estates and rural cottages all feature, each with different extension and loft options.
Projects in Brentwood (CM14) are surveyed in person before we quote, so the price reflects your actual property.
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 in place
We handle planning, building control and neighbour notices before work starts.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about house renovations in Brentwood
Do you renovate listed buildings?
Yes, with listed building consent and appropriate materials.
How much does a house renovation cost in Brentwood?
In Brentwood, a house renovation typically costs £950–£1,900 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 £85,500–£171,000. Your fixed price depends on the survey and drawings.
Who approves a house renovation in Brentwood?
Planning matters in Brentwood go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
Does a renovation need building regulations approval?
Some parts do, such as rewiring, structural changes, new windows and heating systems. We handle notifications.
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.
