To suppress progress of contamination and maintain initial beauty for a long period of time in a decorative wall surface having a decorative coating film provided with an uneven pattern formed by a joint.

The decorative wall surface comprises: a substrate; a colored coating film (A); a patterned coating film (B) partitioned by a joint; and a transparent coating film (C) in this order. The patterned coating film (B) contains a resin component and a granular material so that a ratio of the granular material with respect to 100 pts. wt. of a solid part of the resin component becomes 100-4,000 pts. wt., and further contains a piperidine compound. The transparent coating film (C) contains silica having an average primary particle diameter of 1-200 nm and a resin component.