Should I Sell My Primary Residence?

[Nicholas Davis]

While surfing around Zillow, I noticed that the houses for sale (pre-owned and new construction) in my subdivision are selling for $10K-20K more than what I paid for my house. 

In my area you can buy/build a home foe similar money as renting. We bought the house for $150K and the payoff is a little less than $140K. I have a background in engineering and survey and my wife has a background in architecture design. We picked the land and house plans with the intent on making the house more desirable than any other in the subdivision. 

We've been in the house for 3 years now and I'm flirting with the idea of selling the house for a $15K or so profit and building a new house to live in then repeat. 

The area I live in is under steady growth as the primary large city it is near has started to reach it's capacity. What are your thoughts about moving forward with this idea?