100sf or less so it doesn't require a building permit (but it still may need an electrical permit)
Electrical heat and lights (with power direct wired to the main house elec panel)
Optional Heat Recovery Ventilator for fresh air
High performance windows and skylights for light and comfort
Can be site built or partially prefabbed for quick install
Summer 2021 pricing: ~18k to 25k CAD installed, depending on the specs.

This small building was designed to match the existing home.