MacIvor is particularly well known for a series of solo shows created in collaboration with director Daniel Brooks. These include "House", "Here Lies Henry", "Monster" and "Cul-de-sac". These incorporate a minimalist and meta-theatrical style. In "House" and "Here Lies Henry", MacIvor portrays one character who speaks directly to the audience, acknowledging their presence. While the direct address of the audience continues in "Monster" and "Cul-de-sac", MacIvor portrays several characters throughout the course of the piece and this direct address is occasionally broken up by dialogue between these characters.