3 pieces of land I own and do not know whether to sell or build (what do I build)

[David Rodriguez]

I currently own 2 pieces of land in Baytown, TX. 

They have just been sitting there for 8+ years. All I do is pay property taxes on them. I want to either cash out or construct on them. Not sure what is my best option. If the best option is to build, what should I build (single family, duplex) ???

Any advice would help. 

Property 1:
-Residential

-Land area = 14680 square feet
-market value = $29.360

Property 2: 

-Commercial

-Land area = 13000 square feet
-market value = $45,500

I can give more info if needed. Not sure what else is relevant.