seaside lands for sale Castelo, Portugal

Just 35 minutes from Lisbon, this unique 3.9-hectare plot is located in one of Portugal’s most preserved and authentic coastal areas, only 300 metres from Alfarim / Meco Beach. The property benefits from an approved project for a residence with 1,316 m² of construction, allowing immediate commencement of works, with urbanisation infrastructure already underway. The architectural programme includes 14 independent suites, giving the property exceptional flexibility of use—whether as a remarkable private residence or as an asset with significant income-generating potential. The concept prioritises harmony with nature, low-density construction, and sustainable design solutions, creating an environment of complete privacy, comfort, and understated sophistication. Under the Coastal Zone Plan, no further projects can be approved this close to the sea in this region, and no surrounding construction will be permitted—making this an exceptionally rare opportunity in today’s market. Ideal for those seeking secure appreciation, strong returns, and a truly distinctive asset just steps from the ocean—where nature, exclusivity, and investment potential come together in perfect balance.

Nestled in the unparalleled tranquility of the Serra da Arrábida, this contemporary residence, with approximately 300 m² of built area set on a 1,079 m² plot, stands out for its elegant architecture and the way it blends into the surrounding natural landscape. The project is developed over two floors and has been carefully designed to follow the gentle slope of the land, ensuring a constant connection between the interior, the landscaped outdoor areas, and the open views over the mountains. The façade combines white surfaces, mineral-inspired ceramic cladding, and wooden accents that add texture and sophistication. Large glazed areas allow natural light to flow through the house throughout the day, enhancing the sense of spaciousness and establishing a continuous dialogue with the outdoor environment. On the ground floor lies the social area, consisting of a spacious living room facing the garden and swimming pool, creating a perfect continuity between indoor spaces and the outdoor leisure area. The practical and bright kitchen harmoniously supports daily family life. Also on this level, a generous suite offers total privacy and comfort, benefitting from close proximity to the garden. The upper floor features three bright suites, two of which have access to a spacious balcony that invites you to enjoy the serenity of the landscape. The residence also includes a lift platform that ensures accessibility between floors, adding convenience and adaptability to all stages of life. The exterior of the property has been designed to provide a fluid and relaxing living experience. The swimming pool, with over 44 m², is integrated into a carefully landscaped terrace, surrounded by green areas and seating spaces that encourage outdoor leisure. The house is equipped with comfort and energy-efficient solutions, including high-performance thermal window frames, motorized blinds, and solar panels integrated into the roof. This is a rare opportunity to acquire a distinctive project in one of the most preserved and exclusive natural locations in the country, where contemporary architecture interacts with the serenity of the mountains to create a unique and timeless retreat.