Railway Arches for Dark Kitchens & Food Production
Set up a dark kitchen in a railway arch. Fit-out costs, extract ventilation requirements, best London areas, and profitability guide for ghost kitchen operators.
Typical Size
500–2,000 sqft
Fit-Out Cost
£60–£120/sqft
Use Class
E
Rates Multiplier
RHL (lower)
Why a Railway Arch?
Arches suit dark kitchens because the shell condition means no wasted cost on customer-facing fit-out. The enclosed space is ideal for extract ventilation installation, the thick walls contain noise and heat, and the typically lower rents compared to high-street units improve margins on delivery orders. Many arch clusters have good road access for delivery riders, and the industrial zoning often simplifies food production permissions.
Advantages
- +No customer-facing fit-out needed — lower total cost
- +Enclosed space ideal for extract ventilation
- +Lower rents than high-street food premises
- +Can operate multiple brands from one kitchen
- +Thick walls contain noise and cooking odours
- +RHL rates multiplier reduces business rates
Challenges
- -Extract ventilation installation is expensive (£8k–£12k)
- -Drainage can be challenging in some arches
- -Limited natural ventilation — relies entirely on mechanical systems
- -Delivery rider access needs to be convenient and safe
- -Grease trap maintenance is an ongoing cost
Cost Profile
| Cost Element | Low Estimate | High Estimate |
|---|---|---|
| Fit-Out (per sqft) | £60 | £120 |
| Fit-Out (500 sqft) | £30,000 | £60,000 |
| Typical Rateable Value | £12,000 | £28,000 |
| England annual base rates before reliefs | £4,584 | £10,696 |
Rates use England’s 2026/27 base multipliers. Supplements, transitional relief and other reliefs are excluded. Scotland and Wales use different rules.
This example assumes qualifying RHL use. Confirm the property’s actual use with the council; sector labels alone do not establish eligibility.
Key Requirements
Infrastructure & Services
- •Commercial kitchen extract ventilation with filtration
- •Gas supply for commercial cooking equipment
- •Grease trap and appropriate drainage
- •Adequate electrical supply for refrigeration and equipment
- •Food-safe wall and floor finishes (easy-clean, non-porous)
- •Separate storage for raw and prepared ingredients
Planning & Permissions
- •Class E use — most arches can accommodate without Change of Use
- •Extract ventilation may need planning permission for external ductwork
- •Environmental Health registration mandatory before trading
- •Fire safety assessment required for commercial kitchen
- •Listed Building Consent for any structural fixings or external changes
Would an arch work for your business?
Build a short list of checks to take to a viewing. This helps you investigate suitability; it does not confirm planning permission or landlord approval.
Best London Areas for Dark Kitchens & Food Production
Looking for an arch ?
Tell us what you need — use, size, budget, timing — and with your permission we'll put it in front of the landlords with space in your area. Free for tenants.
Send your requirementsUseful Resources
Free Tools
- Total Cost Calculator
Calculate your true monthly cost including rent, rates, and service charges
- Fit-Out Cost Estimator
Get a sector-specific fit-out estimate with itemised breakdown
- Lease Health Check
Check your lease for hidden risks with our free 12-question assessment
- Business Rates Estimator
Estimate your business rates and check SBRR eligibility