It's all possible
If site selected is as per Vastu, it is fine. Otherwise the very site must be corrected prior to the starting of the construction in such a way that there is a responsible projection of north-east corner. This will be very handy to make all the shops a bit projecting towards north-east. Such commercial complexes which satisfy other Vastu principles also will become popular & would make good profits. Commercial Complexes or shopping arcades have to be designed with lot of open area for car parking. If the parking is in cellar, the building can be designed with little more open area in north & east than south & west to satisfy Vastu
If there is no cellar for parking , lot of areas should be kept open in north & east for car parking & for green patches. If the plot is facing west or south & more open area is left in south or west for car parking, the owner will run into financial difficulties. In such cases, where plots are facing south west, it is better shopping complex built on to the road with minimum open space in south or west. The complex should not be built covering the plot up to the north or east boundary. Instead more open area in rear i.e. in north & east should be left , where car parking, lawns, fountains should be designed etc. Sumps & bore wells also have to be planned in north & east.
Drinking water in shop has to be kept in north-east.
Show cases have to be avoided in north-east directions; better in south west
Lathe machines are to be installed in south or west-south directions if some shop is used as a workshop.
Stocks are to be stores in west, south-west & south side portions of shop.
Better to have lofts & low roofs towards south & west directions, within the shops
North east corner is to be kept open with all sanctity, within the shop. In this corner a water tap or small Puja place could be designed. North-east corner never be used even for a day, for storing any kind of materials.