Conversion of Warehouse and retail spaces into E Commerce fulfilment centers or So Called Dark Stores with better facilities had been a global trend past pandemic days. These projects involved scope from demolition, structural work, electromechanical works with Fire Protection & detection system to HVAC system. The scope also included cold storage (chilled & frozen) with all other areas fully conditioned to meet customer requirements. The E Commerce fulfilment center had the same function as a normal retail store (to hold inventory in bulk and also fulfil local customer orders and handle returns. These facilities are able to achieve economies of scale due to volume pricing achieved thus increasing productivity through economies of scale as the project was completed in very cost effective model. This fulfillment center has freezer and chiller facilities for temperature-controlled products and amenities for safe and hygienic food handling, along with a dedicated loading and dispatch areas for time bound deliveries.