The invention provides a composite ceramic structure comprising a porous ceramic and, bonded thereto by sintering, an ordinary fired material, and provide a process for producing the same. Further, it is intended to provide a novel product, such as tile or composite plant pot, constituted of this composite ceramic structure. Still further, it is intended to provide a wall surface structure that attains realization of a high added value of dry tile structure and is endowed with wall surface ornament and appearance beauty by plants, and that realizes energy saving through reduction of air conditioning load for buildings and other construction structure. There is provided a wall surface structure comprising a base wall surface and, detachable fitted thereto, a planar array of multiple tiles, wherein any parts devoid of tiles are fitted with pot-shaped tiles. In the wall surface structure, the tiles are arranged in lattice pattern lengthwise and crosswise to thereby form a tile surface, and the tiles are fitted above the corresponding parts devoid of tiles. Integer multiple of the width of pot-shaped tiles is made approximately equal to integer multiple of the crosswise width of tiles, and integer multiple of the height of pot-shaped tiles is made approximately equal to integer multiple of the lengthwise width of tiles, so as to effect fitting of pot-shaped tiles in the devoid parts. These tiles are composite tiles constituted of a composite ceramic structure comprising a fired material body and a porous ceramic body bonded to each other by sintering.