Set on approximately 1.51 acres, 15 Hither Lane presents a thoughtfully built residence that pairs enduring design with a clean, modern sensibility. The home offers roughly 6,380 square feet across three levels, including 7 bedrooms, 6 full bathrooms, and one half bath, all arranged to create an easy connection between interior living and the surrounding landscape. From its cedar shingle exterior to its light-filled interiors, the property captures the understated elegance associated with East Hampton's most desirable homes. Beyond the existing layout, there is meaningful upside. In addition to a finished lower level of about 1,706 square feet, the property allows for up to approximately 3,500 square feet of additional buildable space elsewhere on the lot, including the potential for a legal guest house. Whether enjoyed in its current form or reimagined into a larger compound, the flexibility here is rare for a location south of the highway. Positioned on one of East Hampton's most sought-after lanes and just minutes to the village, the home offers close proximity to ocean beaches, shopping, and dining while maintaining a sense of privacy. A circular gravel drive, mature landscaping, and perimeter fencing create a welcoming arrival. Inside, the home is defined by quality craftsmanship and a warm, inviting feel. Custom millwork, hardwood floors, and French doors are consistent throughout, while abundant natural light is complemented by well-placed recessed and decorative lighting. The living room centers around a wood-burning fireplace, and the kitchen is equipped with high-end appliances, including Sub-Zero and Wolf, designed to accommodate both everyday use and entertaining. The main level, spanning roughly 2,791 square feet, blends formal and casual spaces. A welcoming entry leads to a bright dining room suited for larger gatherings. The kitchen includes custom cabinetry and a generous breakfast area, while the living room opens directly to a screened porch through French doors, extending the living space outdoors. A separate den provides a quieter setting for work or relaxation. Upstairs, approximately 1,883 square feet is dedicated to the bedroom level. The primary suite offers a calm retreat with two walk-in closets and a well-appointed bath featuring a soaking tub, dual vanities, and a separate shower. Five additional bedrooms and three full baths provide comfortable accommodations, and a dedicated laundry room adds everyday convenience. The finished lower level adds another layer of usability, with a guest bedroom and full bath, along with a recreation area and additional lounge space. Storage and utility areas are also incorporated, keeping the home both functional and organized. Outdoor living is a major highlight. A heated gunite pool sits at the center of a bluestone patio surrounded by mature plantings, hedging, and gardens that enhance both privacy and atmosphere. A pergola-covered seating area offers shade, while a nearby outdoor kitchen and dining space with a built in grill is set up for easy entertaining. Complementing the pool area is a separate shingled structure that serves as both a pool house and a two-car garage, designed to match the style of the main residence. The pool house includes a full bath and a large storage room with a sink, ideal for poolside use. The garage side maintains the same architectural character, complete with a pitched roof and traditional detailing, and includes an upper attic space that can be used for storage or adapted for other purposes. 15 Hither Lane represents a rare opportunity to own a well-built, expandable property in a prime East Hampton setting, offering both immediate enjoyment and long-term potential.