A method of recovering low-temperature heat, that is to say between 100°C and 180°C, from a so-called low-temperature heat source in an aromatic complex comprising at least one extractive distillation unit, a paraxylene adsorption unit, a xylenes isomerisation unit and a transalkylation unit, the effluents from said units being separated in distillation columns identified as C1 to C11, bearing the following meanings: C1 reformate column, C2 xylenes column, C3 heavy aromatics column, C4 raffinate column, C5 extract column, C6 purification column, C7 deheptaniser, C8 stripper, C9 benzene column, C10 toluene column and C11 stabilisation column, said method consisting of the succession of the following steps: - 1) generating low-pressure steam, that is to say at a pressure of between 1 bar absolute and 7 bars absolute, by exchange with at least one low-temperature heat source selected from the condensers of certain distillation columns of the complex forming a first assembly E1, formed by columns C3, C4 and C5, - 2) increasing the pressure of the steam generated at the issue from step 1 in at least one compression step to create MP steam, - 3) modifying the operating conditions of the process by a reduction in the operating pressure of one or more distillation columns of the complex so as to reduce the temperature of their reboiler below the temperature of the steam issuing from step 2, and - 4) using at a least a part of LP steam issuing from step 1 as a heat transfer fluid supplied to the reboiler of the column C9 and at least a part of the MP steam issuing from step 2 after recompression as a heat transfer fluid supplied to the reboilers of the columns C7, C8, C10 and C11, the assembly of the columns C7, C8, C9, C10 and C11 forming the assembly E2 which is separate from E1. C1 reformate column, C2 xylenes column, C3 heavy aromatics column, C4 raffinate column, C5 extract column, C6 purification column, C7 deheptaniser, C8 stripper, C9 benzene column, C10 toluene column and C11 stabilisation column, said method consisting of the succession of the following steps: - 1) generating low-pressure steam, that is to say at a pressure of between 1 bar absolute and 7 bars absolute, by exchange with at least one low-temperature heat source selected from the condensers of certain distillation columns of the complex forming a first assembly E1, formed by columns C3, C4 and C5, - 2) increasing the pressure of the steam generated at the issue from step 1 in at least one compression step to create MP steam, - 3) modifying the operating conditions of the process by a reduction in the operating pressure of one or more distillation columns of the complex so as to reduce the temperature of their reboiler below the temperature of the steam issuing from step 2, and - 4) using at a least a part of LP steam issuing from step 1 as a heat transfer fluid supplied to the reboiler of the column C9 and at least a part of the MP steam issuing from step 2 after recompression as a heat transfer fluid supplied to the reboilers of the columns C7, C8, C10 and C11, the assembly of the columns C7, C8, C9, C10 and C11 forming the assembly E2 which is separate from E1. - 1) generating low-pressure steam, that is to say at a pressure of between 1 bar absolute and 7 bars absolute, by exchange with at least one low-temperature heat source selected from the condensers of certain distillation columns of the complex forming a first assembly E1, formed by columns C3, C4 and C5, - 2) increasing the pressure of the steam generated at the issue from step 1 in at least one compression step to create MP steam, - 3) modifying the operating conditions of the process by a reduction in the operating pressure of one or more distillation columns of the complex so as to reduce the temperature of their reboiler below the temperature of the steam issuing from step 2, and - 4) using at a least a part of LP steam issuing from step 1 as a heat transfer fluid supplied to the reboiler of the column C9 and at least a part of the MP steam issuing from step 2 after recompression as a heat transfer fluid supplied to the reboilers of the columns C7, C8, C10 and C11, the assembly of the columns C7, C8, C9, C10 and C11 forming the assembly E2 which is separate from E1.