Only Buildable Lot Left in River Run – Post Falls, ID. that comes with Spokane River access. Don’t miss this rare opportunity to build your dream home in the coveted gated community of River Run! This .169-acre lot is the last available buildable parcel in the neighborhood and offers an exceptional location close to the Spokane River. Enjoy all the amenities River Run has to offer, including a private community beach park, in-ground swimming pool, walking paths, and more. Quiet, secure, and beautifully maintained, River Run is one of Post Falls’ premier neighborhoods — close to shopping, dining, golf, and outdoor recreation. Bring your builder and vision!