Basements or crawl space below? 

We do produce our own gravel and sand though, but we buy the rest of the materials, other than that, we do everything in-house we are doing roads and bridges.

Below are some links to get you started.

Right above the text box where you type your post or reply, there is a small rectangle with what looks like a mountain range inside (see photo below). 

If this house needed some work or was bank owed, it would sell below what the market value was at that point in time, which would make it appear to appreciate more, purely looking at the sales price, but you have to account for any capital expenses which were invested in the property.

Below the linoleum is a concrete slab foundation.  

Below are some links to get you started.

Here are some recommendations for you:Find and connect with other BP members that are in your area: http://www.biggerpockets.com/meetSet up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/alertsRead Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingCheck out BP Podcasts: http://www.biggerpockets.com/renewsblog/category/podcast/If you wish to tag someone in the conversation on the forum, type @ followed by their name and then select the name of that person which should appear below the comments box.

Here are some recommendations for you:Find and connect with other BP members that are in your area: http://www.biggerpockets.com/meetSet up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/alertsRead Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingCheck out BP Podcasts: http://www.biggerpockets.com/renewsblog/category/podcast/If you wish to tag someone in the conversation on the forum, type @ followed by their name and then select the name of that person which should appear below the comments box.

Appreciation is likely to be lower than on developed land, as population/housing is what drives demand in RE.Appreciation itself is speculation, NOT investment.