Your initial costs typically include:
Professional fees for your lawyer and surveyor. You will also need to pay the landlord’s legal fees if you have agreed to do so.
Incidental legal costs such as the costs of searches and Land Registry fees.
The price of the premises (for a freehold purchase) or any initial lease premium (for leasehold property).
Any stamp duty land tax (depending on the price and/or the rent payable).
The costs of any alterations, fitting out etc.
Your continuing costs typically include:
Rent and service charges (for leasehold property).
Insurance, utilities and so on.
Non-domestic rates (business rates).
Maintenance and repair costs.