Granny Flat Builds: $160K-$290K in 2026
Granny flat construction in 2026 ranges from $160,000 to $290,000, excluding permits and utility connections that add $15,000 to $40,000. Success depends on zoning compliance, rental market analysis, and ongoing maintenance. Effective planning, precise budgeting, and expert supervision avoid expensive errors. Understand when accessory dwelling units enhance property value, when they underperform, and how to construct them for reliable long-term rental revenue.


















