A rare opportunity to own a piece of Pasadena architectural history, The Simond's House is a character rich California Ranch designed by noted Pasadena architect Theodore L Pletsch and set 3/4 of an acre in coveted Linda Vista. Featured by the Pasadena Museum of History, the residence combines remarkable scale, privacy & an effortless connection to its surrounding landscape. The property spans a substantial lot with approximately 200 feet of frontage, creating a wonderful sense of openness from the moment of arrival. The generous grounds provide privacy & room to enjoy the property, with broad lawn areas, mature landscaping, patios, & outdoor spaces that complement the relaxed California character of the architecture. Brick pathways & handsome stone staircases wind through the grounds, connecting the various gardens & outdoor spaces & creating a natural sense of discovery throughout the property. A saltwater pool, framed by the mature landscape & featuring a pretty cascading waterfall, provides an especially inviting focal point for outdoor living & entertaining. Given the expansive lot size, there is also potential for an ADU. The home is arranged over two functional levels & offers six bedrooms & six bathrooms. From the front door, an inviting entry leads into the formal living room, where wide paneled walls reinforce the warmth & informality of the Ranch aesthetic. A fireplace is framed by glass doors opening to a connected sunroom with views across the expansive backyard. The living room flows naturally into a den/library & dining area, centered around a corner fireplace & walk-in wet bar, with an adjoining powder room. The upper level brings together the family room & an updated kitchen with custom cabinetry, dark granite countertops, & a full suite of Viking & Miele appliances. The kitchen connects easily to the surrounding living spaces, creating a comfortable setting for both everyday life & entertaining. The primary suite provides a generous private retreat, with an expansive bedroom, dedicated dressing area, large bathroom, & attached sitting room. Additional bedrooms offer flexibility for family, guests, or office space. Rarely does a property offer this combination of architectural provenance, 3/4 of an acre of land, extraordinary frontage & privacy in one of Pasadena's most desirable neighborhoods. 1650 Knollwood is a true Linda Vista estate - rich in character, connected to its landscape & ready for its next chapter.