This T3+4 townhouse offers excellent east–west sun exposure and two generous terraces in the Quinta do Rosário development. The home features spacious interiors, ample storage, and well-designed areas, including a converted garage that now functions as a self-contained apartment with strong rental potential. On the ground floor, the entrance hall opens into a bright 35 m² living room with air conditioning and direct access to the terrace. Adjacent to it are the dining area and a fully equipped kitchen. This level also includes a guest bathroom. The first floor comprises a suite with a walk-in closet and a bathroom with a bathtub, two additional bedrooms with built-in wardrobes and balcony access, and a bathroom with a shower. All rooms on this floor are air-conditioned. The top floor opens onto a large terrace with a laundry area and a supporting bathroom. Key features include two terraces, a balcony, marble and floating floors, a fireplace with heat recovery, air conditioning throughout, Viúva Lamego tiles, two water heaters, automatic skylights, a reinforced entrance door, and PVC double-glazed windows. The converted garage offers four bedrooms, a full bathroom, an equipped kitchen, a living room, and a corridor—ideal for guests, extended family, or rental income. Located near Casa da Guia, in one of Cascais’ most prestigious areas and just minutes from the sea, the property offers a blend of comfort, natural light, and tranquility. Residents enjoy easy access to schools, supermarkets, restaurants, the cycling path, and the center of Cascais, with convenient connections to the A5 and Avenida Marginal. The surrounding area includes cafés, pharmacies, gyms, clinics, and parks all within walking distance. Perfect for families seeking space and quality or buyers looking for additional income potential, this home combines charm, functionality, and an exceptional location.