This project started off as a kitchen bump-out and cosmetic updates to the baths. We ended up completely changing the floor plan, adding a mudroom, straightening the stairway, and carving four good-sized bedrooms and two baths out of the warren of small rooms upstairs. All new windows, siding, and roof allowed us to improve the air sealing and insulation as well. Most importantly, we changed the HVAC system and hot water to heat pumps—no gas bill here!