This article seeks to develop Matte-Blanco’s bi-logic of symmetry and asymmetry through a specific spatial logic, a bi-spatial logic overlooked by Matte-Blanco. This article argues that Matte-Blanco’s well-known theory of symmetry for the unconscious is incomplete and requires extension in specific spatial structural terms. Firstly, an argument is made to encompass an understanding of Matte-Blanco’s symmetry in concentric spatial terms and an alternative understanding of symmetry in diametric spatial terms. In doing so and to adequately address Freud’s concept of no negation, Matte-Blanco’s understanding of symmetry needs to encompass a mirror image symmetry in diametric space that is not equivalent to his own model of symmetry. Concentric space offers a model of whole-part interchangeability and containment that is consistent with symmetry and relevant to Freud’s understanding of condensation and displacement. A second extension is to encompass an understanding of Matte-Blanco’s indivisible whole in concentric spatial terms and divisible aspect in diametric spatial terms. The implications of these spatial interpretations for Matte-Blanco’s purportedly foundational concepts are examined. A number of contradictions in Matte-Blanco’s work can be reconciled through this bi-spatial logic, once distinctions in different levels of space, structure and function are recognised.