A generational waterfront setting on Crystal Lake with approved Patrick Ahearn plans and a privately owned dock - an exceptionally rare, build-ready opportunity within a stone's throw of Osterville beaches and village center. A truly distinctive offering on the shores of Crystal Lake in one of Osterville's most coveted and tightly held neighborhoods. With direct lake frontage, a privately owned dock, and approved architectural plans by Patrick Ahearn, one of New England's most celebrated residential architects, this is a rare opportunity to create a refined waterfront residence with both architectural pedigree and long-term value. Ideally positioned for the best of Osterville living, the property offers the uncommon luxury of easy access to the Wianno/Sea View Beach (.2 mi), Dowses Beach (.3 mi), and Osterville Village (.8 mi), placing iconic beaches, village amenities, and daily conveniences all within easy reach. The combination of waterfront privacy and exceptional proximity is increasingly rare in today's market. Offered at $8.75M, the package includes the land and a clearly defined construction package with Sea View Builders, based on the approved architectural plans for th the main residence. Buyers may customize layout, square footage, and interior finishes prior to construction, allowing for meaningful personalization while preserving the integrity of an Ahearn-designed waterfront home. The property also benefits from septic capacity for up to 11 bedrooms, providing additional flexibility for future design beyond the proposed plan. Designed to embrace its Crystal Lake setting, the home is planned to capture tranquil water views and a strong indoor-outdoor connection, with a gunite PebbleTec pool included as part of the offering package. Additional amenities, including a carriage house, cabana, and expanded outdoor living and entertaining spaces, may be explored separately to suit individual preferences and lifestyle goals. An exceptional opportunity to build an Ahearn-designed waterfront home with a privately owned dock, pool, nearby beaches, and proximity to Osterville Village, offering the very best of Cape Cod living in a truly distinguished setting. *Marketing renderings depict current approvals; package as priced includes the main residence and pool. Final square footage is subject to change based on final plans and end-user specifications.*