roof and floor stay the same. raise floor in sunken sunroom. rearrange walls etc. move bathroom, add utility room for HVAC and water heater, add master bedroom w/bath and walk in closet, add bedroom w/walk in closet, upgrade HVAC, plumbing and electric, make handicap accessible. add ramp to driveway off master br. bathrooms to have accessible showers without ledge or step up. Add office desk etc. maybe in master bedroom.