Luxury Penthouse with Sea and Harbour Views in Estoril Discover this exceptional duplex penthouse with 4+1 bedrooms, completely remodeled to the highest standards, right in the heart of Estoril. This exclusive residence offers the best of coastal living with sweeping views over the Atlantic Ocean and the charming Cascais harbour. Located within walking distance of the golden sands of Tamariz Beach and close to restaurants, shops and the train station, it is ideal for those seeking comfort and convenience in a privileged location. Upon entering, you will find a spacious and bright living room of 46 m² that invites you to relax or entertain in style. A separate dining room with a welcoming fireplace connects directly to a large private terrace, creating a perfect flow between interior and exterior. The main floor has three generous suites, each with built-in wardrobes, and a modern guest bathroom. The upper floor is a true private retreat. It includes an additional suite with private shower, sauna, wardrobe and a walk-in closet. There is also a second living area with a kitchenette, ideal for guests or extended family. The spacious balcony offers stunning panoramic views that extend from the open sea to the Cascais marina - a view that truly sets this home apart. The fully equipped kitchen was designed for everyday ease, with a dedicated laundry area. You will also benefit from complete air conditioning, an integrated sound system and excellent sun exposure that floods the house with natural light throughout the day. With a private garage and additional parking space for up to four vehicles, this home is as practical as it is luxurious. Energy rating D. Whether you are looking for a permanent residence, a holiday getaway or a sound investment, this is a rare opportunity to own a property with a proven lifestyle in one of Portugal's most sought-after coastal areas. Appreciate where you live - this penthouse offers you everything.