Can You Add a Second Storey to an Existing House?
A second-storey addition can create substantial new space, but feasibility depends on the existing structure, foundation, stairs, roof, mechanical systems and the proposed building form.
Planning Resources
Category: Second-Storey Additions
Guides to second-storey feasibility, stairs, structure, roof reconstruction, upper-floor planning and the effect of building upward on the existing home.
Topic Guide
Articles Built Around One Part of the Addition Decision
Use these articles together rather than as isolated tips. Each guide links into the relevant service, planning or scope page so you can move from a specific question back to the complete home-addition process.