I am wondering what is the easiest and most efficient way to add this bonus area over the garage. Im not sure if I should create another floor and draw the bonus area in manually or what to do. Any help would be appreciated. Ill attached what im going for and the plan file.
https://www.houseplans.net/floorplans/00900374/modern-farmhouse-plan-2025-square-feet-3-4-bedrooms-2-bathrooms?utm_source=google&utm_medium=shopping&utm_term=009-00374&utm_campaign=shopping_group_2&gad_source=1&gclid=CjwKCAjwtqmwBhBVEiwAL-WAYXLamj0ca5zZlWXctaUCojvHDto2Y7zsPLqmotnbUsrR4FJY8dXN6xoCFfMQAvD_BwE
BLACKBURN PLAN.plan