Value Gap

I'm analyzing a potential BRRR investment in a growing neighborhood, and I want to gauge the room's experience: What's the most significant factor to consider when estimating rehab costs to ensure a profitable rnetal property? I've seen local market trends affect material and labor costs. Does anyone have insights on how to accurately account for these variables? I'm looing at a $120,000 purchase price, $30,000 rehab budget, and projected ARV of $180,000. Holding costs and rental income will make or break this deal. What are your thoughts on mitigating risks and maximizing returns in this scenario?