A rough range for a home addition in about a minute. Not a quote, a reality check.
The estimator uses per-square-foot numbers from additions we've actually built in Southeastern Wisconsin, adjusted for foundation type, what's inside, and finish level. It's deliberately conservative.
What it can't know: your soil, your roofline, how the existing house was built, and what you'll pick for tile. That's what the first phone call is for.
Site work, landscaping, well and septic changes, and design fees are not included.
Send the basics and Chris will give you a range by phone or email.