Wraparound extensions · Bow

Wraparound extensions in Bow

Homeowners in Bow can get wraparound extensions from one company: the design, the paperwork and the building work sit with us rather than with three separate firms.

Covering Bow

Our coverage around Bow (E3) also includes Stratford, Canning Town and Leytonstone.

Homes in London

Much of London’s housing is Victorian and Edwardian terraces, which is why side return extensions, rear dormers and mansards are so common. Many streets are in conservation areas, and several boroughs use Article 4 directions that remove some permitted development rights.

What is a wraparound extension?

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.

  • Steel frame or goalpost for the corner opening
  • Pitched, flat or glazed roof with rooflights
  • Glazing, insulation, plastering and electrics

What is the guide price for a wraparound extension in Bow?

Indicative costs for wraparound extensions. London and the South East usually sit towards the top of each range.

Wraparound extensionsGuide 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

Planning and building rules in Bow

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 can affect a wraparound extension?

  • The corner steel connection is the critical detail and is designed by a structural engineer.
  • Both neighbours may need party wall notices.

From first call to completion

  1. Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
  2. Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
  3. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Your questions answered

How much does a wraparound extension cost?

Typically £3,400 to £4,700 per square metre including VAT. Many come in between £85,000 and £120,000 before the kitchen.

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.

Who deals with the council for a project in Bow?

We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.

Other towns nearby

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

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