Whilst not technically a tree house, Ole’ Treehouse Mill is located on the same property as Treehouse Place and is situated in a beautiful forest setting. Guests can enjoy a luxury bedside soaking tub, soaring ceilings, a kitchenette, and a cozy upstairs loft. One of the coolest things about this restored mill house is that the waterwheel still works and adds a beautiful serenity to the property.

Location: Snohomish Sleeps: 3 guests Pet friendly: no Hot tub: no Price: $200 / night