Most of the conversations I have with new clients start the same way. They have a project in mind, they have a budget in mind, and they have a sense those two numbers might not match. They are usually right.

After 25 years designing renovations, additions, and new homes across New England, I have a pretty good read on what projects actually cost in this market. The tool below uses 2026 regional data and the same fee structure I use with my own clients to give you an honest range in about two minutes.

Every project is different. Site conditions, finish choices, and timing all move the number. But this is a fair place to start, and a much better starting point than the figure most homeowners walk in with.