Dave Rav
Yes, land improvements. It's costing me about 2.5-3k for a septic tank. Electrical cost me about $1300. Then unexpectedly the electrical company is charging me 700 for a closer pole/ transformer. Said it would be free if I was an owner occupant. 350 for a gravel. I paid a few hundred dollars to tee off the main water line, and then just include water in the rent.
City utilities where I'm from charge a ridiculous amount for new construction. I think it's like 4-5k. So as the city system grows they add new. That's a crappy day when you have a good septic tank, and you get hit with a bill for 5K sing need to tap in to city water and sewer.
The hardest problem I'm having is finding cheap mobile homes to add to my existing lots. Used mobile home lots, are charging 25 to 35k for a 2009-20012, and that's not including moving skirting steps AC. Occasionally I find a deal on Facebook marketplace, or craigslist, but the sellers are often flaky. I'll drive an hour to go see a trailer, make a deal, and they never contact me again. I have some contacts with bank repos, but they are not great deals either.
I started my Real estate investing last March by buying five mobile homes in a park for 60k. 3, 3 bedrooms, and two two bedrooms. I have them all lease purchased now for 600, and 400, that's not including the lot rent they pay which is 230.