diff --git a/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/controller/SurveyUnitController.java b/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/controller/SurveyUnitController.java
index 43735d23..758c8079 100644
--- a/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/controller/SurveyUnitController.java
+++ b/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/controller/SurveyUnitController.java
@@ -7,6 +7,7 @@
 import fr.insee.survey.datacollectionmanagement.exception.NotMatchException;
 import fr.insee.survey.datacollectionmanagement.questioning.domain.SurveyUnit;
 import fr.insee.survey.datacollectionmanagement.questioning.dto.SearchSurveyUnitDto;
+import fr.insee.survey.datacollectionmanagement.questioning.dto.SurveyUnitDetailsDto;
 import fr.insee.survey.datacollectionmanagement.questioning.dto.SurveyUnitDto;
 import fr.insee.survey.datacollectionmanagement.questioning.service.SurveyUnitService;
 import io.swagger.v3.oas.annotations.Operation;
@@ -50,6 +51,7 @@ public class SurveyUnitController {
             @ApiResponse(responseCode = "404", description = "Not found"),
             @ApiResponse(responseCode = "400", description = "Bad Request")
     })
+    @Deprecated
     public Page<SurveyUnitDto> getSurveyUnits(
             @RequestParam(defaultValue = "0") Integer page,
             @RequestParam(defaultValue = "20") Integer size,
@@ -79,13 +81,13 @@ public Page<SearchSurveyUnitDto> searchSurveyUnits(
     @Operation(summary = "Search for a survey unit by its id")
     @GetMapping(value = Constants.API_SURVEY_UNITS_ID, produces = "application/json")
     @ApiResponses(value = {
-            @ApiResponse(responseCode = "200", description = "OK", content = @Content(schema = @Schema(implementation = SurveyUnitDto.class))),
+            @ApiResponse(responseCode = "200", description = "OK", content = @Content(schema = @Schema(implementation = SurveyUnitDetailsDto.class))),
             @ApiResponse(responseCode = "404", description = "Not found"),
             @ApiResponse(responseCode = "400", description = "Bad Request")
     })
-    public SurveyUnitDto findSurveyUnit(@PathVariable("id") String id) {
+    public SurveyUnitDetailsDto findSurveyUnit(@PathVariable("id") String id) {
         SurveyUnit surveyUnit = surveyUnitService.findbyId(StringUtils.upperCase(id));
-        return convertToDto(surveyUnit);
+        return convertToDetailsDto(surveyUnit);
 
     }
 
@@ -119,7 +121,7 @@ public ResponseEntity<SurveyUnitDto> putSurveyUnit(@PathVariable("id") String id
         }
 
         return ResponseEntity.status(responseStatus)
-                .body(convertToDto(surveyUnitService.saveSurveyUnitAndAddress(surveyUnit)));
+                .body(convertToDto(surveyUnitService.saveSurveyUnitAddressComments(surveyUnit)));
 
     }
 
@@ -130,6 +132,7 @@ public ResponseEntity<SurveyUnitDto> putSurveyUnit(@PathVariable("id") String id
             @ApiResponse(responseCode = "404", description = "Not found"),
             @ApiResponse(responseCode = "400", description = "Bad request")
     })
+    @Deprecated
     public void deleteSurveyUnit(@PathVariable("id") String id) {
         SurveyUnit surveyUnit = surveyUnitService.findbyId(StringUtils.upperCase(id));
 
@@ -146,6 +149,11 @@ private SurveyUnitDto convertToDto(SurveyUnit surveyUnit) {
         return modelMapper.map(surveyUnit, SurveyUnitDto.class);
     }
 
+    private SurveyUnitDetailsDto convertToDetailsDto(SurveyUnit surveyUnit) {
+        return modelMapper.map(surveyUnit, SurveyUnitDetailsDto.class);
+    }
+
+
     private SurveyUnit convertToEntity(SurveyUnitDto surveyUnitDto) {
         return modelMapper.map(surveyUnitDto, SurveyUnit.class);
     }
diff --git a/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/domain/SurveyUnit.java b/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/domain/SurveyUnit.java
index 56a0ae90..ef54a65c 100644
--- a/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/domain/SurveyUnit.java
+++ b/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/domain/SurveyUnit.java
@@ -33,6 +33,9 @@ public class SurveyUnit {
     @OneToOne(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
     private SurveyUnitAddress surveyUnitAddress;
 
+    @OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
+    private Set<SurveyUnitComment> surveyUnitComments;
+
     @Override
     public String toString() {
         return "SurveyUnit [idSu=" + idSu + ", identificationCode=" + identificationCode + ", identificationName="
diff --git a/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/domain/SurveyUnitComment.java b/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/domain/SurveyUnitComment.java
new file mode 100644
index 00000000..e861a982
--- /dev/null
+++ b/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/domain/SurveyUnitComment.java
@@ -0,0 +1,20 @@
+package fr.insee.survey.datacollectionmanagement.questioning.domain;
+
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.Date;
+
+@Entity
+@Getter
+@Setter
+public class SurveyUnitComment {
+    @Id
+    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "su_comment_seq")
+    private Long id;
+    @Column(length = 2000)
+    private String comment;
+    private String author;
+    private Date date;
+}
diff --git a/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/dto/SurveyUnitDetailsDto.java b/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/dto/SurveyUnitDetailsDto.java
new file mode 100644
index 00000000..36287dd8
--- /dev/null
+++ b/src/main/java/fr/insee/survey/datacollectionmanagement/questioning/dto/SurveyUnitDetailsDto.java
@@ -0,0 +1,20 @@
+package fr.insee.survey.datacollectionmanagement.questioning.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.Set;
+
+@Getter
+@Setter
+public class SurveyUnitDetailsDto {
+
+    @NotBlank
+    private String idSu;
+    private String identificationCode;
+    private String identificationName;
+    private SurveyUnitAddressDto address;
+    private Set<SurveyUnitCommentOutputDto> comments;
+
+}