Land for Sale in Barcelos, Martim. Land Details. Location: Martim, Barcelos. Total Land Area: 8650 m2. Construction Area: 4300 m2. Additional Information. There is a previously approved construction project for 32 houses in the Barcelos City Council, which has since expired. At this time, it is necessary to submit a new subdivision request for the revalidation of the project. High Profitability Potential for builder. This lot is ideal for construction companies looking for an opportunity to develop a new residential development in an area with great potential for appreciation. For more information or to schedule a visit to the site. Contact us!