It goes without saying that you should always have a profession inspection of a property before buying. That being said, you can often size up things beforehand on your own.
Another point to consider is whether you will stay in established campgrounds just off the highway, or whether you will want to regularly get off the beaten track and rough it 'off-road'. All sorts of things to consider now - chassis radio communications, interior protection, battery power, water tank capacity, and so on. The secret is - ask questions of your dealer and make sure you are happy with the answer. Our rig is an off-roader. It has a box chassis that is 150mm by 50mm that extends the full length of the camper. It has light truck tyres that lift it clear off the ground and has independent suspension too. All cupboards and drawers have extra hinges and securing screws. Do your homework!
There are many factors that will alter the design sketch such as presence of a big tree in the backyard. Also take not of external influential factors such a sunlight, shadows of the house building falling on the ground and their direction, wind directions and wind speeds, etc You do not have to be very scientific about this but these things are important.
Running along either side of Cypress Creek and the lake was a parkway called Chickasaw Parkway. There was East Chickasaw Parkway, and West Chickasaw Parkway. These were streets where some of the nicer, and higher priced dwellings got built. They weren't necessarily the nicest, or most expensive, just the most visible. Knoxville's Sequoyah Hills, along the Tennessee River, reminded me of it.
As you decide on your want list of features for building a house boat, it may force you into a larger boat size. It may also cause you to exceed your budget for the project. Bottom line just be patient, but it is wise to find an online source that has a hundred or more boat plans to choose from. As you can see, building a house boat is not easy or a cookie cutter process. Spend a few bucks with a reputable house building boat plans company that will assist you every step of the way.