Answer : If you're planning a major renovation, blueprints can be incredibly helpful in terms of keeping track of everything that needs to be done. Even if you're not working with an architect or designer, having a blueprint can give you a clear sense of the scale of the project and help you plan accordingly.
That said, referring to blueprints isn't always necessary - especially if you're only making small changes. If you have a basic understanding of construction and know what you want to achieve, you can usually get by without referring toblueprints too often. However, if this is your first renovation project or if there are any complex aspects involved, it's definitely worth taking a look at your blueprints on a regular basis.