The typical asking rate per listing is in the $20's per square foot per year. The Jupiter submarket is going through a decline in rates. In the last 3 months, the median rate fell $7 per sqft per year. That's a 24% decrease in rent.
Compared to the rest of the Gold Coast market, the Jupiter region has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 13 listings have been posted online, which means spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 8% of the listings in the Jupiter are subleases, so you will probably need to sign a longer term lease with the landlord directly. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,220 sqft. Most buildings in this market are approximately 1 floors. Most buildings in this region were built in 2003 and are Class A.