This is a unique opportunity to customize and create value at a low entry point in desirable Mill Valley. 53 Castle Rock Drive has an enchanted "tree house'' feeling that overlooks a peaceful and serene Redwood Forest. The property boasts over a quarter of an acre and is nestled near the end of the quaint private road. Most of the heavy lifting has already been completed by the previous owners and includes a newer sewer line, newer roof, newer foundation, newer electrical, as well as a newly repatterned floorplan on the main level that creates extra square footage by adding an additional bedroom/office and full bath. There are also new windows inside the house that are waiting to be installed. The open floor plan with towering wood-beamed ceilings, tall picture windows and skylights, and secluded decks on each level make it easy to soak in the sunlight and natural beauty of the environment. The lower level has a separate entrance and three bedrooms and two full bathrooms. The architectural drawings for this partially completed remodel have already been submitted to the County and buyers are encouraged to do their own investigations with the County and planning. Excellent proximity to hiking trails, Muir Woods and Stinson Beach.