Dan has said it well.
I started out with a written five year plan for my property, this plan included topographical maps, drawings of placements for all out buildings (house foundation was already in place), road work, orchards, food gardens,
medicinal gardens, swales, road improvement projects, forest management plan, fences. In short, we tried to plan out everything. We have, in the past year decided on some changes, which were also drawn out on overlays of the original
plans.
The more information you have for your property and neighbors goings on, the better you can set up your property to function the way you want it to function. It also makes it easier to adapt when you find that changes to this plan will make the property work better.
I have soil information including soil tests, the topographic profile, satellite photography, county requirements, neighbors
plans for their property (important if you want to be friends with them). I even have drawings of each building so the construction goes smoothly.
Be ready to do re-drawings, inevitably you will find that there are better placements as you lay out your property to function the best it can for your needs/wants/desires.
Good luck and best wishes.