When considering a 400 sq ft home addition, several factors come into play that can significantly influence the overall cost. These include the choice of materials, labor expenses, and any necessary permits or inspections. Additionally, the complexity of the design and the location of your home can also affect pricing. It's essential to weigh the benefits of increased space against the investment required. Understanding the potential return on investment and how it fits into your long-term plans is crucial. Ask Improvi.ai for personalized guidance on budgeting and planning your home addition!