Elevations- This part of the plans help the inspectors understand the height of the outside of the house. It also shows the shape and size of windows, doors, trim, roof material and slope, and anything else that can help describe the outside of the house.
Details -this is a plan for some of the smaller things that have special instructions to build. This is more for the carpenters so they can get a good idea of what the architect has designed, but inspectors also like to know what's going on.
Some of the details might include how a fireplace should look, stairs and handrails, molding and trim or just anything that is different from normal houses. The details sheet is part of the modern-house-plan and is as many pages as needed.
Sections-This part of the modern-house-plan just shows how the parts of a building fit together. Most of it is common sense, but sometimes walls, stairs, and things like fireplaces need a little extra explaining to get the clear picture. Like detail plans, the sections plans are more for the builder than the inspector, but they like to be kept in the loop. House-blueprints need to fit together seamlessly.
Whew, that seems like a lot of stuff!Most of it is redundant, but it's always good to be over prepared. I hope this isn't too discouraging to first time home builders. I know it can be in the beginning. The best thing to do is go get some really big paper and get started. You'll find that it's the excitement of starting your plans that motivates you. So go ahead, get some paper, tape it down to the kitchen table and start to draw your plans with a yardstick. It will flow from there.