Owner-Builder vs. General Contractor

Module 6.3 showed owner-builders saving real money on garage conversions. Time to examine that path honestly — because the savings are true, and so is everything else.

What "owner-builder" legally means. You pull the permit yourself, signing a declaration that you're building on your own property — taking on the responsibilities a GC would carry: hiring and supervising every trade, scheduling, quality control, safety, calling every inspection. California also requires disclosure of real obligations: if you hire workers directly (rather than licensed subs), you may become an employer — with workers' comp obligations. Read the owner-builder form's warnings as information, not boilerplate.

The true savings: typically 15–25% of construction cost — the GC's overhead, supervision, and profit. On a $130K conversion, perhaps $20K–$30K. Real money.

The true cost: a part-time job you can't quit. For a conversion, expect 10–20 hours a week for 4–8 months: finding and vetting each trade (that funnel from lesson 11.4 — now run five to eight times), sequencing them (Module 12's order, which you now must conduct: the plumber before the drywaller, always), being on-site for questions ("the plans show the drain here, but there's a footing — where do you want it?" is a Tuesday-10AM question that stops work until answered), managing every inspection, and owning every gap. When the framer's mistake surfaces at drywall, there's no GC to eat it — the trades will each point at each other, and the referee is you.

Who actually succeeds at this: people with construction or trades background; project managers by profession with flexible schedules; owners doing simple projects (a structurally sound garage conversion — not a hillside two-story); and people who honestly enjoy this — because eight months of a job you hate is expensive at any savings rate.

Who shouldn't (the honest list): full-time-plus workers with no schedule flexibility, anyone conflict-averse (this job is 30% negotiation), first-timers on complex builds, and anyone doing the math at $0/hour for their own time. At 600 hours and $25K saved, you worked for ~$40/hour and carried all the risk — decent pay if you enjoyed it, terrible pay if it nearly broke you.

The middle paths worth knowing: hire a construction manager for a smaller fee to advise while you contract directly; or GC the simple phases and hire out the coordinated middle (foundation-through-drywall is where sequencing is hardest). And whichever path you choose — every lesson in this module still applies to every person you hire. That was the point of the module.