How Much to Add Plumbing to a Shed? (2025 Cost Guide)

Dreaming of a backyard office, tiny guesthouse, or hobby studio with a working sink or even a toilet? You’re not alone—but one big question stands in the way: how much to add plumbing to a shed? Whether you’re weighing a simple outdoor sink or full bathroom functionality, understanding real-world costs, permits, and practical limitations can…