Solve building conditions first
Investigate active moisture, drainage, foundation concerns, ceiling height, and existing systems before covering walls or selecting finishes.
Define the intended use
A family recreation space, bathroom, office, bedroom, or separate unit can create different design, code, egress, fire-safety, and service requirements.
Confirm municipal requirements
Permit and inspection needs vary by scope and municipality. Check with the local building department and qualified professionals before construction.
Official sources
Requirements can change. Use these primary sources and confirm details for your property and municipality.