The property has been bought from Alpha Real Estate at a price that represents a net initial yield of 4.3%.
It is being acquired with an unexpired lease term of 19 years (with a break option at year 14), with five-yearly rent reviews subject to 2% fixed, annually compounded uplifts.
"This store has strong omnichannel trading fundamentals and is situated in a prominent location within a highly affluent town,2 said
Ben Green, a director of Atrato Capital, which is the investment adviser to Supermarket Income REIT.
Shares in the real estate investment trust were up 0.5% at 106.5p.