Kitchen Renovation in London: What It Costs, What's Involved and What to Get Right

Kitchen renovation costs in London depend primarily on three variables: the scale of the structural and building works (changing the layout, removing walls, moving the kitchen position in the house); the specification level of the kitchen furniture and appliances (from flat-pack IKEA through mid-range German-made kitchens to fully bespoke hand-painted or hand-crafted cabinetry); and whether the kitchen is within the existing footprint or part of a wider extension project. Cost ranges by project type (London 2025): Basic kitchen refresh (existing layout retained, existing plumbing positions unchanged, basic off-the-shelf kitchen units and laminate worktop — IKEA or similar, client-supplied and contractor-installs): supply and install of kitchen units: £3,000-£6,000 (units supplied by client). Contractor installation cost (kitchen fit, plumbing connections, electrical, tiling): £2,500-£5,000. Total typical cost: £5,500-£11,000. Mid-range kitchen renovation (existing layout broadly retained but with some replumbing, new electrical circuit, quality mid-range kitchen from a specialist retailer such as Wren, Howdens, or a German brand such as Rotpunkt, Schuller, or Nobilia, with quartz or composite worktop, integrated appliances): kitchen units and worktop supply: £8,000-£18,000 (client-supplied or through kitchen designer). Contractor installation cost: £5,000-£9,000. Total typical cost: £13,000-£27,000. Full kitchen renovation (new layout with wall removal, relocated drainage, new electrical circuits, quality kitchen with stone worktop, integrated appliances, under-cabinet lighting, kitchen island): structural works (wall removal, beam): £4,000-£10,000. Plumbing repositioning: £1,500-£3,500. Electrical works (new circuits, sockets, under-cabinet lighting): £1,500-£3,500. Kitchen units and worktop supply (high mid-range or bespoke): £15,000-£40,000 (client-supplied). Contractor installation: £6,000-£12,000. Decoration, tiling, flooring installation: £2,000-£5,000. Total typical cost: £30,000-£74,000+. Premium bespoke kitchen renovation (full structural remodel, bespoke hand-painted or solid timber cabinetry, stone worktop, high-end integrated appliances — Miele/Gaggenau/Bora): £50,000-£120,000+ depending on size and specification. Note: all contractor costs above are subject to 20% VAT. Client-supplied materials (kitchen furniture, appliances) purchased directly are VAT-inclusive at retail.

The kitchen layout is the single most important design decision in a kitchen renovation — poor layout means poor workflow, inadequate storage, and constant frustration with the space. The classic kitchen work triangle (sink, cooker, and fridge forming a triangle with each leg between 1.2m and 2.7m) remains a valid planning principle, though it has been supplemented in contemporary kitchen design by the concept of work zones (prep zone, cooking zone, cleaning zone, storage zone). Common kitchen layout types and their suitability for London homes: Galley (corridor) kitchen: two parallel banks of units with a corridor between them. Highly efficient work triangle for a single cook. Common in London Victorian terraces (the original Victorian rear kitchen was typically a narrow galley layout in the back addition). Often used as the 'dirty' kitchen behind a new open-plan space. Width of corridor: minimum 900mm for a single person (1,100mm+ preferred); minimum 1,200mm for two people passing. L-shaped kitchen: two runs of units on adjacent walls forming an L shape. Flexible for corner units and island addition. Works well in a square room. Suitable for medium to large kitchen spaces (minimum footprint approximately 10m² for a comfortable L-shaped layout). U-shaped kitchen: three runs of units on three walls forming a U. Maximum storage efficiency, excellent work triangle, but requires a larger footprint (minimum 15m²) to avoid the U becoming too narrow to use. Suits larger London Victorian kitchen-dining rooms or open-plan extensions. Island kitchen: a central island (typically 900mm × 1,800mm minimum for a functional island) added to an L-shaped or U-shaped perimeter layout. Provides additional worktop and storage, creates a social hub in an open-plan space, and can incorporate seating for informal dining. Requires adequate clear circulation space around the island: minimum 900mm on the working side (between island and perimeter units), 600mm on the non-working side. Only appropriate in a space of at least 25-30m² unless the island is small. Open-plan kitchen-dining-living: the most sought-after layout in London renovation projects — removing the wall(s) between the kitchen and the reception/dining room to create a single multi-purpose space. Requires structural design (beam installation), acoustic planning for the cooking and preparation area, and an extractor that does not distribute cooking odours throughout the open space (recirculating extractor with activated carbon filter, or a ceiling extract duct routed to the outside).

A kitchen renovation (within the existing footprint, no structural changes) does not require planning permission. However, several elements of a kitchen renovation are notifiable under Building Regulations: Electrical works: any new dedicated circuit (electric cooker circuit, dishwasher circuit, ring main extension) must be notified to Building Control. In practice, this is handled automatically by a NICEIC- or NAPIT-registered electrician who self-certifies the work and notifies Building Control on behalf of the homeowner. Gas works: any new gas point (gas hob, gas range cooker) or modification to existing gas pipework must be carried out by a Gas Safe registered engineer. The Gas Safe engineer notifies Building Control via the gas registration scheme. Structural alterations: if the kitchen renovation involves removing a structural wall to create an open-plan layout, a Building Control application is required (typically a Building Notice — straightforward for a domestic structural alteration). The structural engineer's beam design and calculations are submitted to Building Control before the structural works start. Unvented hot water cylinder: if the kitchen renovation includes replacing a vented (gravity-fed) hot water system with an unvented cylinder (to improve hot water pressure to the kitchen sink or dishwasher), the installation must be carried out by a G3-qualified plumber and notified to Building Control under Part G2. The most common kitchen renovation works that do NOT require Building Regulations notification (beyond the electrical and gas self-certification routes above): replacing kitchen units and worktop in the existing layout; retiling the kitchen walls; replacing the kitchen sink and tap in the same position; replacing appliances that use existing connections. Note: permitted development rights apply to the kitchen renovation only where the house is a single-family dwelling — flats and converted houses have different planning and Building Regulations regimes.

The kitchen renovation is the most-used room in the house and the room where programme overrun causes the most daily disruption to the family. Managing the project well means minimising the time the kitchen is out of use. Practical planning tips for a London kitchen renovation: Set a clear decision deadline before the contractor starts: all kitchen unit selections, worktop choice, appliance specification, tap choice, sink specification, tile choice, and floor finish must be decided and ordered before the contractor starts on site. Kitchen units and worktops have 2-6 week manufacturing lead times from most UK kitchen retailers. Appliances from premium brands (Miele, Gaggenau, Bora) can have 4-8 week lead times. Ordering before the contractor starts means the kitchen arrives on site at the same time the contractor is ready to install. Set up a temporary kitchen: a microwave, kettle, and a small refrigerator in a bedroom or utility room, with access to a cold water tap and a single plug socket, allows a family to function during the kitchen renovation. This is especially important for a kitchen renovation that runs longer than 2 weeks — which any project involving structural work will. Protect the rest of the house: kitchen renovation produces significant dust during strip-out, chasing of walls for new pipework and electrical chases, and structural work. Temporary dust barriers (zip-wall systems or taped polythene sheeting across doorways) protect the rest of the house significantly. Sequence the trades correctly: demolition → structural works → first-fix electrical → first-fix plumbing → plastering → tiling (before units) → units and worktop installation → second-fix electrical → second-fix plumbing → appliance installation → decoration → floor finish installation. This sequence is important — tiling before units is standard practice (tiles behind units do not need to be cut around units, making the finish neater and the tile area larger); appliances are connected after units and worktop are in place. Appoint a single contractor for the whole project: a kitchen renovation that uses a separate kitchen company (installation only) and a separate building contractor (structural and M&E works) requires coordination between two parties — and the gap between them is where mistakes happen. A design-and-build contractor who manages both the building works and the kitchen installation produces a more seamlessly coordinated result.