Hello there mitcoolhai . I have set up a few washes in FL and here is what you can expect. Price for an auto and 2 self serve bays will most likely be around 200K. The small lot size will be an issue. Is there good egress and visibility? Talk to the local building department and they will tell you the setbacks and any other restrictions. Building costs will be at least 100K and could top 200K. And expect it to take a year to complete. And that is if you have the cash to do it. If you will need funding, most lenders will not touch this with no prior wash experience. Whatever you do, good luck to you. Feel free to send me a note if you want to discuss this in more detail.