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KentStructural alterations and knock-throughs

Structural alterations and knock-throughs in Margate

SK Developments designs, gets approval for and builds structural alterations in Margate and across Kent, with one contract from the first drawing to the building control sign-off.

Guide price in Margate

£5,000–£10,500 for a typical knock-through with steel beam

In Margate, a structural alteration typically costs £5,000–£10,500 for a typical knock-through with steel beam, including VAT at 20% (standard rate).

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Tell us about your project. We reply to arrange a visit and a fixed quote.

Free home visit and measured survey
Fixed price for the agreed specification
Drawings, approvals and build in one contract
Building control sign-off arranged
England, Wales, Scotland and Northern Ireland

What is a structural alteration?

Steel beam installed across a wide opening with props in place during a knock-through

A structural alteration changes how a house carries its loads, most often by removing a load-bearing wall and replacing it with a steel beam. It is how kitchens and dining rooms become open-plan, and how extensions are joined to the original house.

How much does a structural alteration cost in Margate?

In Margate, a structural alteration typically costs £5,000–£10,500 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Prices across the South East are typically 12% above the UK average for this kind of work, which is reflected in the range for Margate. Design, structural calculations and council fees are extra.

Guide prices for Margate, including VAT at 20% (standard rate)
Size or typeGuide range
A typical knock-through with steel beam£5,000–£10,500
Higher specification£10,500–£13,000

What moves the price most:

  • Moving radiators, sockets and pipes
  • Floor and ceiling repairs
  • What sits above the wall
  • Flush or downstand beam

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 structural alteration in Margate?

The approval route for Margate is set by planning law in England. In England removing a load-bearing wall does not need planning permission but does need building regulations approval with an engineer’s calculations. If the beam bears on a party wall, a party wall notice must be served.

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.

At the survey we check your house’s planning history and any restrictions, and tell you which route applies.

What we handle

What we take care of:

  • Structural engineer’s calculations and drawings
  • Party wall notices where needed
  • Fire protection to the steel
  • Temporary propping
  • Building control application
  • Steel beam supply and installation on padstones

How long does it take?

Expect 1 to 2 weeks on site for a typical knock-through. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.

Building in Margate

Commuter towns across the South East have many 1930s and post-war semis that suit rear extensions and hip-to-gable loft conversions.

Margate sits in Kent, about 31 miles east of Southend-on-Sea. We cover the whole of Margate, including postcodes CT9.

How it works

  1. 01

    Free visit

    We look at the property, talk through what you want and measure up. There is no charge and no obligation.

  2. 02

    Design and pricing

    Design options, then a fixed quote based on the chosen drawings and specification.

  3. 03

    Approvals

    Planning or permitted development confirmation, building regulations and any party wall matters.

  4. 04

    Build and handover

    Work follows the agreed programme, with inspections along the way and a completion certificate at the end.

Questions about structural alterations in Margate

How long does a knock-through take?

Usually 1 to 2 weeks on site, plus a few days for plastering to dry.

Who approves a structural alteration in Margate?

Planning matters in Margate go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.

Do I need a party wall notice?

In England and Wales, if the beam sits in a party wall, yes.

How much does a structural alteration cost in Margate?

In Margate, a structural alteration typically costs £5,000–£10,500 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.

Can the beam be hidden?

Often, by setting it within the ceiling depth. It depends on the joists and span.

Ready to talk about a structural alteration in Margate? Book a free home visit or get an instant guide price.

Call 0800 088 6248 or get an instant guide price online.

Call 0800 088 6248Get a guide price