The whole nine lot subdivision hung on 130 feet of somebody else's yard
Closed out the last four lots of a small infill subdivision in March, so here are the real numbers.
3.2 acres inside city limits, already zoned for what I wanted, minor subdivision process rather than a full rezone. Bought it for $285k from an estate that had been sitting on it for eleven years. Nine lots, 60 foot widths, straight in and out on a single street with a hammerhead.
Horizontal came in at $41k a lot, $369k total. Soft costs, engineering, survey, geotech, plat and permit fees, attorney, ran $60k. Carry on the land and horizontal loan was $38k across 19 months. All in $752k. Sold nine lots at $118k, $1.062M, less about $32k in commission on the two builder deals I didn't source myself. Call it $278k net over 19 months.
The part that nearly killed it: the site drains away from the street. To get gravity sanitary I needed to cross 130 feet of the neighboring lot to reach a manhole in the alley behind it. No existing easement. My alternative was a grinder pump on every lot, which two of the three builders I'd talked to said they'd discount $12k a lot for, so an $108k swing.
The neighbor opened at $75k. I spent five weeks getting to $22k plus rebuilding his driveway apron and a new fence section, and I only got there because the surveyor found that his own storm tie-in ran across my corner without an easement either. We papered both at once.
What I'd keep: I paid $6,500 for a sewer availability and routing study before closing, during due diligence, which is why I knew about the easement problem while I could still walk. And I recorded the plat in two phases so the first five lots closed and funded the back half of the horizontal instead of me funding all nine.
What I'd change: I priced the easement at $15k in my original model on no basis at all. Should have been $50k with a grinder pump fallback priced next to it.