3665 Knollwood Street Rare opportunity to customize a remarkable River Oaks estate situated on a sizable 35, 600+ sq. ft. corner property in a highly coveted location. This refined residence features a timeless Preston Bolton design combining a classic floor plan with grand-scale living spaces enhanced by substantial ceiling heights and serene views of the sublime setting. Regal Reception Hall. Paneled Library. Elegant Formals. Island Kitchen with Morning Room opening to a screened-in patio overlooking the manicured lawn and tranquil pool terrace with water features and spa. Primary Suite up with dressing room, marble bath, and access to a sizable balcony. 3 Guest Suites. Elevator-installed to Third Floor Flex Room with substantial storage. Extensive off-street parking with circular motor court and two-car carport leading to a two-car garage with 1-Bedroom Guest Apartment above in addition to a 2-Bedroom Guest Cottage with one-car garage.