Below is a graphic using MoM software to study the effects of installing a vertical monopole close to another physical structure, such as a wood-framed house.
The closest wire conductors used to construct the framework shown in the graphic are located six feet away from the vertical radiator. Those wires would behave (roughly) like the interior a-c power lines of a typical frame home. The far-field radiation patterns are shown for this layout, for a frequency of 7.25 MHz.
The patterns for the MW broadcast band would be less affected, due to the longer wavelengths in use.