If you're looking for a 7 bedroom house plan, that means you have a large family to house, a lot of different daily activities to attend to, or you're interested in building a home as an investment opportunity. For example, a 7 bedroom house plan with big windows and sweet outdoor living areas might be great to build next to a body of water--like the ocean, or a lake. While your family could enjoy the property for part of the year, you could also (assuming local laws permit) rent it out to other large or multi-generational families for the summer or holiday weekends.
As you search for a house plan, consider how many people will need their own bedroom. For instance, if you have 6 kids, and you want each of them to have his or her own room, then a 7 bedroom house plan is a must. On the other hand, a 7 bedroom house plan might also work well for you if you have, say, 4 kids, but also need space for certain activities, like working from home, homeschooling, exercise, or hobbies. Remember-- a bedroom can be turned into just about anything you want. This is your dream home that you're building, so do with it what you want!