WALLNUT | DESIGN + BUILD We design dreams. Deliver solutions. Build projects. Wallnut is present mainly on the area of greater Lisbon, Algarve, Alentejo and Porto, with origins in the center of Portugal - Oliveira do Hospital, Coimbra. Architecture and Engineering projects, Project Management, Construction, Rehabbing, Remodeling, Consulting and Inspections in the area of construction are the main services provided.