"Live in your space 12-18 months before tackling big renovations such as additions or knocking down walls. What you initially think you want to do may change after you’ve lived there for a while." — Fran Carpentier There are exceptions; if something needs to be repaired/updated to make a home liveable, don't wait. But when it comes to making a house your ideal home, it is a good idea to wait and be confident of significant changes.