diff --git a/api-v3/src/asset-master/dto/create-inventory-structure.dto.ts b/api-v3/src/asset-master/dto/create-inventory-structure.dto.ts
new file mode 100644
index 0000000..5d400e3
--- /dev/null
+++ b/api-v3/src/asset-master/dto/create-inventory-structure.dto.ts
@@ -0,0 +1,56 @@
+import { Transform } from 'class-transformer';
+import {
+  IsIn,
+  IsOptional,
+  IsString,
+  IsUUID,
+  Matches,
+  MaxLength,
+  MinLength,
+} from 'class-validator';
+
+export const INVENTORY_STRUCTURE_KINDS = [
+  'AREA',
+  'YACIMIENTO',
+  'INSTALACION',
+  'SUBINSTALACION',
+] as const;
+export type InventoryStructureKind = typeof INVENTORY_STRUCTURE_KINDS[number];
+
+export class CreateInventoryStructureDto {
+  @IsIn(INVENTORY_STRUCTURE_KINDS)
+  kind!: InventoryStructureKind;
+
+  @IsOptional()
+  @Transform(({ value }) => typeof value === 'string' && value.trim() ? value.trim().toUpperCase() : null)
+  @IsString()
+  @MaxLength(120)
+  @Matches(/^[A-Z0-9][A-Z0-9._/-]*$/)
+  code?: string | null;
+
+  @Transform(({ value }) => typeof value === 'string' ? value.trim() : value)
+  @IsString()
+  @MinLength(1)
+  @MaxLength(200)
+  name!: string;
+
+  @IsOptional()
+  @Transform(({ value }) => typeof value === 'string' && value.trim() ? value.trim() : null)
+  @IsString()
+  @MaxLength(200)
+  commonName?: string | null;
+
+  @IsOptional()
+  @IsUUID('4')
+  parentId?: string | null;
+
+  @IsOptional()
+  @IsUUID('4')
+  familyId?: string | null;
+
+  @IsOptional()
+  @Transform(({ value }) => typeof value === 'string' && value.trim() ? value.trim() : null)
+  @IsString()
+  @MaxLength(4000)
+  description?: string | null;
+}