The joists (horizontal wood support) often is not engineered to carry the load of a second addition. 

It has 22 horizontal lines, 1 for each address. 

My one bank who stuck with me also has given me two horizontal loans..

We were in business with countless part time, dual career, investor based agents and with some of the fees  these agents still chose us because of the education as well as the vertical and horizontal income opportunities built into the model (profit share, JV title company, JV insurance company, ability to build a team, expand the team, ability to take on leadership positions, ability to get paid to train and coach, etc.)

Then on Wednesday the landscaper called us saying that the tenants had called him back to the house to make the bottoms and tops of the trees perfectly horizontal.  

You could sell "paper lots" to a developer that in turn could do the horizontal improvements and sell finished lots to a homebuilder, do the horizontal work yourself and sell improved lots to a homebuilder or do 100% of the development work yourself.

Go ahead, draw a horizontal line and mark the hot areas you know about and about how long between you hearing about them.Project this concept in to future several cycles.  

Not in your state but you can call your asphalt or concrete ready mix supplier and have him list you 5-10 companies that do horizontal, tell them you need a contractor that has a grader, road roller/compaction equipment, couple of dumptrucks, and asphalt pavers.

Horizontal development will be ready to begin in Early 2018 and be completed within 6 months.Finished market value $110k per lot. (1800-3500sf average lot size) Entry level homes, new houses selling for $325-$350k nearby.

Do you see the horizontal cracks coming form the corner of the concrete pier a the top?