Expandable housing structure with stacking walls

An expandable structure comprising:

• a main structure;
• a first expansion section, the first expansion section expandable outward in a first direction from the main structure;
• and
• a second expansion section expandable outward in a second direction from the main structure, wherein:
• first and second side walls of the first expansion section are formed from a plurality of first and second side wall panels, the wall panels, in a retracted configuration, are storable in a stacked arrangement;
• third and fourth side walls of the second expansion section are formed from a plurality of second expansion section third and fourth side wall panels that, in a retracted configuration, are storable in a stacked arrangement;
• first and second wall enclosure housings holding the plurality of first and second wall panels, respectively, in the retracted configuration;
• and
• third and fourth wall enclosure housings holding the plurality of second expansion section third and fourth wall panels, respectively, in the retracted configuration.