Revenue property with commercial space and 3 apartments

Beautiful yield property consisting of a commercial space and 3 apartments near the center of Sint-Truiden, shopping complex and approach roads. 
Commercial space with garage, storage room and cellar.
App 1: living room, dining room, open kitchen (induction hob, fridge, oven, dishwasher, double sink), storage room, toilet, bathroom (shower, toilet, double sink in furniture), 2 bedrooms, terrace. Rent 675€/month
App 2: living room, kitchen (fridge, freezer, ceramic hob, oven, dishwasher, double sink), bathroom (bath with curtain, toilet, double sink), toilet, 3 bedrooms, storage room, finished attic, large terrace. Rent 840€/month
App 3: living room, kitchen (ceramic hob, fridge, single sink), storage room, bathroom (single sink in cabinet, bathtub, toilet), 1 bedroom, terrace. Rent 600€/month
The commercial space is empty, the apartments are already rented.
EPC label commercial space: B.
EPC label app 1: C.
EPC label app 2 & 3: B. No renovation obligation