Don't be held up by analysis paralysis. Do a site plan with the help of a civil engineer who may be able to do it in waves. I was quoted $2k, but it was a three phase thing with pre-perc, etc. Based on the pre-percolation test, he said the septic is basically good to go anywhere in the spots tested. He then drew up a site plan, the county health department perc'ed it themselves, and now we're just kind of waiting for me to get the financing the finish the job here. I'm hoping to build out 10-15 spots for mobile homes and another 8-10 for RVs in another part of the road frontage (I have two roads). Right now, I'm under contract for another park so everything is on hold. Don't over think it though! Like @Mario Dattilo said, sometimes you will sink money into something that you don't close on or buy. I've lost $2400 on a SFH that I never bought. That's nothing compared to all the issues I would have had to solve if I did do it. It's part of the game. On this property, I've paid $1500 for a partial survey and 2k on a civil engineer. I've already bought the property because I was afraid of rising rates (got a 3.4% thank goodness because they're literally in the 7s now), but it's still costing me 1800/month before construction starts. It'll probably be a couple more years because I keep going to other more lucrative short term projects, but I'll get there eventually.
