Knock down and rebuild in Portsmouth

Covering Portsmouth

Portsmouth sits 15 miles south-east of Southampton, with Gosport 2 miles to the west and Fareham 5 miles to the north-west.

Homes in the South East

The South East has a lot of 1930s and post-war semi-detached housing, well suited to rear extensions and hip-to-gable loft conversions, alongside period properties in conservation areas that need a more careful design.

What does a knock down and rebuild involve?

Knock down and rebuild means demolishing an existing house and building a new one in its place, often a bungalow or poorly built post-war house replaced by a larger, more efficient home. Because the new house counts as a new dwelling, the build is usually zero-rated for VAT.

Planning application for the replacement dwelling
New foundations, structure and full fit-out
Reconnection of services and landscaping

How much should I budget for a knock down and rebuild?

Typical ranges for knock down and rebuild. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.

Knock down and rebuild	Guide price
Demolition and site clearance (total)	£15,000 to £35,000
Rebuild, standard specification (per m²)	£2,100 to £2,600 per m²
Rebuild, good specification (per m²)	£2,600 to £3,100 per m²
Rebuild, high specification (per m²)	£3,100 to £3,700 per m²

How is a knock down and rebuild approved in Portsmouth?

In England we deal with the council’s planning team for permission or a lawful development certificate, with building control (the council or a registered building control approver) for inspections, and with neighbours under the Party Wall etc. Act 1996 where it applies.

This needs full planning permission from the council.

What can affect a knock down and rebuild?

A replacement dwelling is usually zero-rated for VAT where the old house is demolished completely to ground level.
You will need somewhere to live for most of a year.

What are the steps?

Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
Site visit. We walk the plot or existing house, look at access, levels, services and boundaries, and talk through what could be built.
Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Questions about a knock down and rebuild in Portsmouth

Is it cheaper to knock down and rebuild or renovate?

It depends on the existing house. Where a house needs major structural work and a large extension, rebuilding can be similar cost and gives a better result. We compare both at feasibility.

How long does it take?

Around 36 to 60 weeks including demolition.

Can you visit a house in Portsmouth to quote?

Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.

Knock down and rebuild in nearby towns

Learn more about knock down and rebuild, or see every project we cover in Portsmouth.