The Starbucks branch on Platform 2 at Bath Spa railway station will be refurbished after Bath & North East Somerset Council was satisfied with upgrade proposals at the listed building.
The plans for the coffee shop aim to bring it in line with the latest store brand concept being rolled out at stations across the country.
Council planning officers agreed that the proposed works will not affect the special interest of the Grade II* listed building, which was constructed in 1850 by Isambard Kingdom Brunel.
The changes include an expansion of the coffee shop’s current outdoor seating area.