Wraparound extensions in St Austell

Covering St Austell

Alongside St Austell, we also cover Bodmin, Truro (13 miles to the south-west) and Falmouth.

Projects in Cornwall are taken on by arrangement, and any travel and accommodation costs for the team are shown openly in the quote.

Homes in the South West

The South West mixes stone and render cottages, Victorian terraces in the larger towns and modern estates, and many historic centres are conservation areas where materials and roof shapes are closely controlled.

What does a wraparound extension involve?

Because it removes two external walls, a wraparound needs careful structural design and a good plan for the corner where the steels meet. We design, apply for any permissions, build and finish the shell, and can fit the kitchen as part of the same contract.

Design, planning drawings and structural calculations
Party wall process with both neighbours if needed
Pitched, flat or glazed roof with rooflights

How much should I budget for a wraparound extension?

What wraparound extensions typically cost. These are guide ranges; the written quote for your house replaces them.

Wraparound extensions	Guide price incl. VAT
Standard specification	£3,400 to £3,800 per m²
Good specification	£3,800 to £4,250 per m²
High specification	£4,250 to £4,700 per m²

How is a wraparound extension approved in St Austell?

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.

In England a wraparound extension is treated as one extension, and because it covers both the side and the rear it does not normally fit within permitted development. Most need householder planning permission, which usually takes around eight weeks once validated.

What should I think about before starting?

The corner steel connection is the critical detail and is designed by a structural engineer.
An open-plan space this size needs a heating plan, often underfloor heating.

How does the project run?

Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Questions about a wraparound extension in St Austell

Does a wraparound need planning permission?

Usually yes. In England it combines a side and rear extension, which takes it outside permitted development in most cases.

How long does a wraparound take?

Around 12 to 18 weeks on site after approvals.

How do I get a price for wraparound extensions in St Austell?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Wraparound extensions in nearby towns

Learn more about wraparound extensions, or see every project we cover in St Austell.