Since Delo also specializes in furniture design and manufacturing, the interior features brand's signature objects. Apart from these items, wooden tables and lightning fixtures were custom-made in the local workshops based on Delo's drawings.

The restaurant is located in Vasileostrovskiy Market which is a vast foodhall in the historical center of Saint Petersburg. Bearing in mind the origin of Numero Zero's cuisine, Delo turned its space into an Italian courtyard. To recreate patio's atmosphere, the designers used large terracotta blocks that refer to traditional Italian architecture and isolate the restaurant from foodhall's common area. The result is a private space centered around an opened kitchen.

The decor continues the patio theme: plants in clay pots and round glass lamps reminiscent of street lights add to the image of an open-air mediterranean courtyard.

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