Be aware of what you are committing yourself to on a shop lease. For what is included, the cost and for the contract duration.
Can you sustain yourself for an initial period of time preparing the shop before you open, and for business to begin to take off?
Are there shop fittings already? Will you have to provide everything in an empty shop? (Can you negotiate disposing of the former fittings and cleaning a vacated shop? And is it worth your while to do so? - that gets you existing fittings, but takes your effort & time and you then need to dispose of what you aren’t going to use)
Commercial rates, the rent and utilities are the obvious starters. But retail landlords don’t have the same landlord responsibility as domestic landlords do. If the roof leaks that can be your problem, so you want to start with a good roof and then look after it
(There are retail properties around here that businesses are taking on then leaving - the
landlords don’t want to go to the full expense of works required, and are managing to lease out to businesses - even if it’s at reduced prices and shorter term leases)
Look into any business subsidies, is there a business start up subsidy, rates concessions etc
(Check against different types of business use as this can effect your business rates and eligibility for subsidies)
Would the business be viable when subsidies run out?
Is the shop suitable for your possible use - stock room, parking, loading access etc?
Is your potential business viable ?
Can you diversify ?
(Can you see their contract terms? That can restrict changes to your business and what your can do to the shop such as painting, fixing to walls, etc)