Outdoor kitchens have moved from a luxury for the few to an aspirational feature for UK homeowners who want to extend their usable living space into the garden. A basic setup — a freestanding gas BBQ trolley with a side worktop — costs a few hundred pounds and needs no trade involvement. A fully fitted outdoor kitchen with a built-in pizza oven, fridge, sink, integrated lighting, and a weatherproof canopy can run to £25,000 or more. Most projects sit somewhere in between.
What Does an Outdoor Kitchen Include?
At its simplest, an outdoor kitchen is a covered worktop alongside a cooking appliance. A comprehensive build might incorporate:
- Built-in gas or charcoal BBQ grill
- Pizza or wood-fired oven
- Gas-powered wok burner or plancha grill
- Under-counter fridge or wine cooler
- Outdoor-rated sink with hot and cold supply
- Weatherproof worktop (granite, porcelain, or marine-grade composite)
- Integrated storage/drawers in marine-grade stainless steel or powder-coated aluminium
- Overhead canopy, pergola, or gazebo with integrated lighting
- Patio heater or infrared heating strips
Not every project needs every element. A focused brief — cooking station plus prep surface plus covered seating — often delivers more value than an over-specified kitchen that goes unused.
Planning Permission
Most outdoor kitchen structures in England fall under Permitted Development (PD) for outbuildings, provided:
- The structure is in the rear or side garden (not projecting forward of the principal elevation)
- Maximum height is 2.5 m within 2 m of any boundary, or 3 m elsewhere (4 m for a dual-pitched roof)
- The total footprint of all outbuildings does not exceed 50% of the land around the original house
A canopy or pergola attached directly to the house counts as an extension rather than an outbuilding and is assessed against extension PD rules (typically up to 3 m projection from the rear wall for terraced houses, 4 m for detached).
Gas and electrical connections to a permanent structure require Building Regulations notification even if full planning permission is not needed. A Gas Safe registered engineer must install and commission any mains gas supply; all electrical work outdoors must comply with Part P of the Building Regulations.
Conservation areas and listed buildings: PD rights are restricted. Check with the local planning authority before proceeding.
2026 UK Cost Breakdown
| Component | Budget range (supplied & installed) |
|---|---|
| Modular stainless-steel frame & drawers (1.5 m) | £1,200–£3,000 |
| Built-in gas BBQ (4–6 burner) | £600–£2,500 |
| Wood-fired pizza oven (freestanding) | £400–£1,500 |
| Built-in pizza oven (masonry or steel) | £1,500–£5,000 |
| Outdoor fridge/wine cooler | £300–£900 |
| Granite or porcelain worktop (per linear metre) | £300–£700 |
| Outdoor sink (unit + plumbing) | £800–£2,500 |
| Pergola or canopy (4×4 m, aluminium) | £2,500–£7,000 |
| Integrated LED lighting | £400–£1,500 |
| Gas supply (new branch from meter) | £600–£1,500 |
| Electrical supply (circuit + sockets) | £400–£1,000 |
Worked Example — Mid-Range Project
A 3 m modular outdoor kitchen with a built-in 6-burner gas BBQ, granite worktop, under-counter fridge, outdoor sink, and a 4×3 m aluminium pergola:
| Item | Cost |
|---|---|
| Modular frame and drawers | £2,800 |
| 6-burner built-in gas BBQ | £1,600 |
| Granite worktop (3.5 linear m) | £1,800 |
| Under-counter fridge | £550 |
| Outdoor sink + plumbing | £1,400 |
| Pergola with integrated lights | £4,500 |
| Gas supply extension | £900 |
| Electrical circuit | £600 |
| Total (approx.) | £14,150 |
Budget installations using freestanding modular units without plumbing or a canopy can come in at £2,500–£5,000. Fully bespoke natural stone or brick-clad kitchens designed by a landscaping architect reach £25,000–£50,000+.
Material Choices
Frames: Marine-grade 316 stainless steel is the gold standard outdoors — corrosion-resistant and cleanable. Powder-coated aluminium is lighter and widely used in modular systems. Rendered blockwork or brick provides a more architectural look but is labour-intensive.
Worktops: Granite and porcelain are the most durable choices for outdoor use — frost-resistant, stain-resistant, and will not fade. Composite decking-style surfaces are cheaper but less durable near heat. Standard kitchen worktops are not rated for outdoor use.
Appliances: Always specify appliances rated for outdoor use (look for IP54 or higher on electrical items). Domestic gas appliances are not warranted for external installation; outdoor-rated BBQs and burners carry explicit outdoor use classification.
Utilities: What You Actually Need
- Gas: A new branch off the domestic meter is the cleanest solution for a permanent kitchen. A Gas Safe engineer will install and pressure-test the line — expect £600–£1,500. Alternatively, an LPG bottle stored in a ventilated steel housing is a lower-cost option that avoids the need for mains work.
- Water: Cold supply is straightforward — a spur from the nearest stopcock with an outdoor-rated tap and backflow prevention valve (required by Water Regulations). Hot water adds cost; many outdoor kitchens use only cold.
- Electricity: At minimum, a weatherproof double socket on a dedicated circuit with RCD protection. Budget £400–£700 for a new circuit from the consumer unit.
Maintenance
- Clean stainless steel with a mild detergent and a soft cloth along the grain to prevent surface scratches and rust spots.
- Cover appliances when not in use — even outdoor-rated BBQs last longer with a fitted weatherproof cover.
- Descale the sink and check drainage in autumn before cold weather sets in.
- Service the gas installation every 1–2 years via a Gas Safe engineer — outdoor pipework is more exposed to corrosion than indoor runs.
- Check the pergola fixings annually, particularly in exposed locations. Re-torque any loose bolts before winter.
Is It Worth It?
An outdoor kitchen adds usable square footage to your home without planning complexity. Estate agents in the south of England report that well-specified outdoor entertaining spaces contribute positively to buyer interest, though the uplift is hard to quantify precisely — it depends heavily on the size of the plot and local buyer expectations. For a family that uses the garden from April to October, the day-to-day quality-of-life benefit is the stronger argument.
