A method of raising a building structure, resting on an first foundation structure, with respect to the first foundation structure; the method comprising the steps of: forming a second foundation structure on the first foundation structure for supporting the building structure with respect to the first foundation structure and having a number of through holes,, and a number of connecting members, each fixed to the second foundation structure close to a respective hole and having at least one portion projecting upwards; inserting through each hole a pile having a bottom end resting on the first foundation structure, and a top end projecting from the hole; fitting to each pile a respective thrust device, which rests at one end on the top end of the pile and is secured at the other end to the corresponding connecting member which acts as a reaction member; statically applying a respective thrust on each pile by means of the respective thrust device to raise the seconde foundation structure together with the building structure with respect to the first foundation structure; and fixing each pile axially to the second foundation structure once raising is competed; wherein each pile comprises a metal rod of substantially constant section defined by a number of segment, which are inserted successively through the respective hole and joined to one another; and a wider metal bottom head; the method is characterized in comprising the further steps of: lining, when forming the second foundation structure, each hole with a metal guide tube, which is fixed to the second foundation structure and has a portion projecting upwards from said second foundation structure; and using each guide tube as connecting member acting as a reaction member and secured to the respective thrust device. forming a second foundation structure on the first foundation structure for supporting the building structure with respect to the first foundation structure and having a number of through holes,, and a number of connecting members, each fixed to the second foundation structure close to a respective hole and having at least one portion projecting upwards; inserting through each hole a pile having a bottom end resting on the first foundation structure, and a top end projecting from the hole; fitting to each pile a respective thrust device, which rests at one end on the top end of the pile and is secured at the other end to the corresponding connecting member which acts as a reaction member; statically applying a respective thrust on each pile by means of the respective thrust device to raise the seconde foundation structure together with the building structure with respect to the first foundation structure; and fixing each pile axially to the second foundation structure once raising is competed; wherein each pile comprises a metal rod of substantially constant section defined by a number of segment, which are inserted successively through the respective hole and joined to one another; and a wider metal bottom head; the method is characterized in comprising the further steps of: lining, when forming the second foundation structure, each hole with a metal guide tube, which is fixed to the second foundation structure and has a portion projecting upwards from said second foundation structure; and using each guide tube as connecting member acting as a reaction member and secured to the respective thrust device. lining, when forming the second foundation structure, each hole with a metal guide tube, which is fixed to the second foundation structure and has a portion projecting upwards from said second foundation structure; and using each guide tube as connecting member acting as a reaction member and secured to the respective thrust device.