Building for sale in Seixal, with an approved extension project, set on the front line of the bay with stunning views over the Tagus River and Lisbon. This is a rare opportunity for an investor or developer seeking a high-potential asset in one of the most attractive areas on the south bank of Lisbon. The property is being sold with an approved architectural project, ready to build, for a mixed residential and commercial development of 710 sqm, arranged into 6 units over 4 levels: 2 commercial spaces on the ground floor, 1 one-bedroom apartment, 1 two-bedroom apartment, and 2 duplex units on the upper floors. The project highlights exceptional panoramic views over Lisbon Bay, a premium waterfront location facing the Tagus with direct access to a sandy beach, as well as an innovative architectural concept with strong added value. This property offers the unique possibility of mooring your boat just below your windows, while enjoying life within close reach of a major European capital. The property is also eligible for IFFRU financing and for the tax benefits linked to the ARU urban rehabilitation zone, further enhancing its heritage appeal and potential profitability. Just a few minutes by ferry from Lisbon or by car from the beaches of Caparica, this project represents a unique opportunity to develop a high-end new-build scheme in a truly distinctive location: an authentic setting combining historic charm, quality of life, and growing investment momentum. Important: do not hesitate to arrange a visit to discover the advantages of Seixal and fall in love with this remarkable location. I will also be happy to provide any additional information by phone, email, or video conference. IAD is a digital real estate agency built on professionalism and transparency. I work on a 50/50 commission-sharing basis with all agencies holding an AMI number. As an independent real estate consultant, I have the flexibility to manage my own schedule, which allows me to meet you wherever you are and provide the best possible service, ensuring personalised support throughout every stage of your project. You may contact me in Portuguese, French, or English.