Most listings are in the $40's per square foot per year. The Weslaco submarket is seeing a a rise in rates. In the last 3 months, the median rate went up $44 per sqft per year.
In the last 90 days, 12 listings have been made available, which means new availabilities most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 33% of the office spaces in the Weslaco are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 280 sqft. Most buildings in this region are around 1 stories. Most buildings in this area were built in 2003 and are Class A.