Opportunity knocks for home-owners and builders alike! Nestled in the heart of Wellesley's coveted Historic District on prestigious Cottage Street, this picturesque 1870s New England Colonial offers a blend of timeless historic character with unmatched expansion opportunity in a highly sought-after location. The main home offers 4 beds, 3 baths, and an incredible canvas for a buyer ready to bring their personal touch, or execute a complete vision without paying for someone else's cosmetic choices.Step outside to discover a secluded backyard retreat built for relaxation and entertaining. A fabulous deck overlooks the private, fenced-in yard, and a dedicated pool house completes the oasis with the 4th bath, providing ultimate convenience for guests and poolside gatherings.What truly sets this residence apart is the substantial planning already secured for the next owner: the property comes with an approved 2025 Historic District Commission (HDC) Certificate of Appropriateness for a stunning custom expansion designed by renowned Royer Architects, allowing you to bypass the lengthy municipal review process and move straight toward building equity.The location delivers ultra-easy lifestyle access to the best of Wellesley: you are just steps from the scenic Brook Path for morning walks and a pleasant stroll from Wellesley's vibrant town center with boutique shopping, top-tier dining, and the commuter rail station. Situated in the highly sought-after, state-of-the-art HUNNEWELL Elementary School district.Whether you choose to move in, refresh the interiors, or build out the approved expansion, this home represents a rare chance in an unbeatable neighborhood.