Open-plan kitchen knock-throughs in Westminster

Is open-plan kitchen knock-throughs right for your Westminster kitchen?

If your Westminster home is an older terrace, the wall between the kitchen and the middle room may well be load-bearing, so an engineer and a steel beam are likely to be part of the plan.

Plenty of Westminster homes have a small back kitchen beside a dining room that only gets used at Christmas, and joining the two gives one room the household actually lives in. Our Greater London coverage reaches every part of Westminster (SW1 and W2) and out towards Pimlico.

What we cover for open-plan kitchen knock-throughs in Westminster

The exact scope is agreed after the survey, but a typical job in Westminster covers:

Cables, pipes and radiators in the wall rerouted by qualified trades
Temporary props set, the wall removed and the steel beam bedded on padstones
Free survey visit to check the wall, the floors above and the services running through it
Beam boxed in, the opening plastered and the floor joined where the wall stood
New kitchen fitted once the opening is made good and the structural work inspected
Structural engineer arranged to design the beam, padstones and temporary propping

What do open-plan kitchen knock-throughs cost in Westminster?

The figures below are guide prices for Westminster, including VAT and adjusted for typical costs across London. The fixed price comes after we have measured up. Expect costs in London to sit somewhat above UK averages, reflecting local labour rates.

What do open-plan kitchen knock-throughs cost in Westminster?
Typical project	Guide price
Non-load-bearing wall removed and made goodStud or light partition, minimal services	£1,000–£2,600
Load-bearing wall with a steel beamStructural engineer's design and making good; building control or warrant fees listed separately	£3,900–£11,000
Knock-through with a new kitchen-dinerSteel beam, new kitchen, new floor throughout	£32,500–£71,500

Load-bearing guide ranges include the structural engineer's design for a typical single opening and making good; council building control or building warrant fees, rerouted services, decorating and the kitchen itself are listed separately. Prices include VAT at 20%.

Local homes and their kitchens

In and around Westminster, homes range across Victorian and Edwardian terraces, conversion flats, mansion block flats and 1930s semis. Victorian terraces often have a narrow galley beside the side return, while conversion flats and mansion blocks usually fit the kitchen into a small room or along one living-room wall.

Permit parking, red routes and flats without lifts are common, so parking suspensions, stair carries and lift bookings may need arranging before delivery day. London's mains water is hard, so limescale builds quickly on taps and boiling water taps, and a scale-reducing filter is worth planning in.

Regulations for kitchen work in Westminster

In England, removing a load-bearing wall needs a structural engineer's design and Building Regulations approval through local authority building control or a registered building control approver. Where a beam bears into a party wall, the Party Wall etc. Act 1996 means serving notice on the neighbours before work starts. If the new open-plan kitchen opens onto the hall and stairs, building control will check the escape route, and homes with a floor more than 4.5 metres above ground may need extra fire safety measures.

Conservation areas are widespread across London, so a new extractor vent on a front wall may need permission, and leaseholders usually need the freeholder's written consent first.

Before you book open-plan kitchen knock-throughs in Westminster

Plan the heating for your new Westminster kitchen-diner; removing a wall can also remove a radiator, and the larger room may need more heat.
Choose the new floor finish before the wall comes out, so the strip where the wall stood can be levelled and covered in one go.
Clear both rooms completely before the opening is made in your Greater London home, and seal doors to the rest of the house with dust sheets and tape.
Allow time for the engineer's design and approval before work starts, especially in Scotland, where the building warrant must be granted first.

Questions about open-plan kitchen knock-throughs in Westminster

How much do open-plan kitchen knock-throughs cost in Westminster?

For removing a non-load-bearing wall and making good, budget around £1,000 to £2,600 including VAT in Westminster. That reflects typical costs in London; we confirm the actual figure in writing once we have measured up.

Which parts of Westminster do you work in?

All of them. Our Greater London coverage takes in the whole of Westminster, including the SW1 and W2 postcode districts, as well as surrounding towns such as Pimlico. If you are unsure, send us your postcode.

Does knocking through to the kitchen affect fire safety?

It can. If the new open-plan kitchen opens straight onto the hall and stairs, a kitchen fire could affect the escape route from upstairs, so building control, or the building warrant process in Scotland, will check how people would get out. In houses with a floor more than 4.5 metres above ground, usually three storeys or more, extra fire safety measures may be needed. We confirm what applies before work starts.

Who designs the steel beam for a knock-through?

A structural engineer does. We arrange the engineer, who calculates the loads and specifies the beam size, the padstones it bears on and the temporary propping needed while the wall comes out. Those calculations go with the Building Regulations application or building warrant. We do not design steelwork ourselves; the work follows the engineer's design and is inspected as part of the approval.

Do I need approval to remove a wall between kitchen and dining room?

For a load-bearing wall, yes, everywhere in the UK. In England, Wales and Northern Ireland that means Building Regulations approval through building control; in Scotland a building warrant must be granted before work starts, followed by a completion certificate. A non-load-bearing partition is simpler, although a listed building may need listed building consent and a leasehold flat usually needs the freeholder's written consent.

Nearby places we cover

We also carry out open-plan kitchen knock-throughs in these towns near Westminster: