diff --git a/tools/challenge-helper-scripts/create-language-block.ts b/tools/challenge-helper-scripts/create-language-block.ts
index cbb4a1c19e8..58e780a6013 100644
--- a/tools/challenge-helper-scripts/create-language-block.ts
+++ b/tools/challenge-helper-scripts/create-language-block.ts
@@ -19,7 +19,12 @@ import {
 import { superBlockToFilename } from '../../curriculum/build-curriculum';
 import { getBaseMeta } from './helpers/get-base-meta';
 import { createIntroMD } from './helpers/create-intro';
-import { createDialogueFile, createQuizFile, validateBlockName } from './utils';
+import {
+  createDialogueFile,
+  createQuizFile,
+  getAllBlocks,
+  validateBlockName
+} from './utils';
 import {
   updateSimpleSuperblockStructure,
   updateChapterModuleSuperblockStructure
@@ -222,118 +227,122 @@ function withTrace<Args extends unknown[], Result>(
   });
 }
 
-void prompt([
-  {
-    name: 'superBlock',
-    message: 'Which certification does this belong to?',
-    default: SuperBlocks.A2English,
-    type: 'list',
-    choices: Object.values(languageSuperBlocks)
-  },
-  {
-    name: 'block',
-    message: 'What is the dashed name (in kebab-case) for this block?',
-    validate: validateBlockName,
-    filter: (block: string) => {
-      return block.toLowerCase().trim();
-    }
-  },
-  {
-    name: 'title',
-    default: ({ block }: { block: string }) => block
-  },
-  {
-    name: 'helpCategory',
-    message: 'Choose a help category',
-    default: 'English',
-    type: 'list',
-    choices: helpCategories
-  },
-  {
-    name: 'blockType',
-    message: 'Choose a block type',
-    default: BlockTypes.learn,
-    type: 'list',
-    choices: Object.values(BlockTypes),
-    when: (answers: CreateBlockArgs) =>
-      chapterBasedSuperBlocks.includes(answers.superBlock)
-  },
-  {
-    name: 'blockLayout',
-    message: 'Choose a block layout',
-    default: BlockLayouts.DialogueGrid,
-    type: 'list',
-    choices: Object.values(BlockLayouts),
-    when: (answers: CreateBlockArgs) =>
-      chapterBasedSuperBlocks.includes(answers.superBlock) &&
-      answers.blockType !== BlockTypes.quiz
-  },
-  {
-    name: 'questionCount',
-    message: 'Choose a question count',
-    default: 20,
-    type: 'list',
-    choices: [10, 20],
-    when: (answers: CreateBlockArgs) => answers.blockType === BlockTypes.quiz
-  },
-  {
-    name: 'chapter',
-    message: 'What chapter should this language block go in?',
-    type: 'list',
-    choices: (answers: CreateBlockArgs) => {
-      const superblockFilename = (
-        superBlockToFilename as Record<SuperBlocks, string>
-      )[answers.superBlock];
-      const structure = getSuperblockStructure(superblockFilename) as {
-        chapters: {
-          dashedName: string;
-          modules: { dashedName: string; blocks: string[] }[];
-        }[];
-      };
-      return structure.chapters.map(chapter => chapter.dashedName);
-    },
-    when: (answers: CreateBlockArgs) =>
-      chapterBasedSuperBlocks.includes(answers.superBlock)
-  },
-  {
-    name: 'module',
-    message: 'What module should this language block go in?',
-    type: 'list',
-    choices: (answers: CreateBlockArgs) => {
-      const superblockFilename = (
-        superBlockToFilename as Record<SuperBlocks, string>
-      )[answers.superBlock];
-      const structure = getSuperblockStructure(superblockFilename) as {
-        chapters: {
-          dashedName: string;
-          modules: { dashedName: string; blocks: string[] }[];
-        }[];
-      };
-      return (
-        structure.chapters
-          .find(chapter => chapter.dashedName === answers.chapter)
-          ?.modules.map(module => module.dashedName) ?? []
-      );
-    },
-    when: (answers: CreateBlockArgs) =>
-      chapterBasedSuperBlocks.includes(answers.superBlock)
-  },
-  {
-    name: 'position',
-    message: 'At which position does this appear in the module?',
-    default: 1,
-    validate: (position: string) => {
-      return parseInt(position, 10) > 0
-        ? true
-        : 'Position must be an number greater than zero.';
-    },
-    when: (answers: CreateBlockArgs) =>
-      chapterBasedSuperBlocks.includes(answers.superBlock),
-    filter: (position: string) => {
-      return parseInt(position, 10);
-    }
-  }
-])
+void getAllBlocks()
+  .then(existingBlocks =>
+    prompt([
+      {
+        name: 'superBlock',
+        message: 'Which certification does this belong to?',
+        default: SuperBlocks.A2English,
+        type: 'list',
+        choices: Object.values(languageSuperBlocks)
+      },
+      {
+        name: 'block',
+        message: 'What is the dashed name (in kebab-case) for this block?',
+        validate: (block: string) => validateBlockName(block, existingBlocks),
+        filter: (block: string) => {
+          return block.toLowerCase().trim();
+        }
+      },
+      {
+        name: 'title',
+        default: ({ block }: { block: string }) => block
+      },
+      {
+        name: 'helpCategory',
+        message: 'Choose a help category',
+        default: 'English',
+        type: 'list',
+        choices: helpCategories
+      },
+      {
+        name: 'blockType',
+        message: 'Choose a block type',
+        default: BlockTypes.learn,
+        type: 'list',
+        choices: Object.values(BlockTypes),
+        when: (answers: CreateBlockArgs) =>
+          chapterBasedSuperBlocks.includes(answers.superBlock)
+      },
+      {
+        name: 'blockLayout',
+        message: 'Choose a block layout',
+        default: BlockLayouts.DialogueGrid,
+        type: 'list',
+        choices: Object.values(BlockLayouts),
+        when: (answers: CreateBlockArgs) =>
+          chapterBasedSuperBlocks.includes(answers.superBlock) &&
+          answers.blockType !== BlockTypes.quiz
+      },
+      {
+        name: 'questionCount',
+        message: 'Choose a question count',
+        default: 20,
+        type: 'list',
+        choices: [10, 20],
+        when: (answers: CreateBlockArgs) =>
+          answers.blockType === BlockTypes.quiz
+      },
+      {
+        name: 'chapter',
+        message: 'What chapter should this language block go in?',
+        type: 'list',
+        choices: (answers: CreateBlockArgs) => {
+          const superblockFilename = (
+            superBlockToFilename as Record<SuperBlocks, string>
+          )[answers.superBlock];
+          const structure = getSuperblockStructure(superblockFilename) as {
+            chapters: {
+              dashedName: string;
+              modules: { dashedName: string; blocks: string[] }[];
+            }[];
+          };
+          return structure.chapters.map(chapter => chapter.dashedName);
+        },
+        when: (answers: CreateBlockArgs) =>
+          chapterBasedSuperBlocks.includes(answers.superBlock)
+      },
+      {
+        name: 'module',
+        message: 'What module should this language block go in?',
+        type: 'list',
+        choices: (answers: CreateBlockArgs) => {
+          const superblockFilename = (
+            superBlockToFilename as Record<SuperBlocks, string>
+          )[answers.superBlock];
+          const structure = getSuperblockStructure(superblockFilename) as {
+            chapters: {
+              dashedName: string;
+              modules: { dashedName: string; blocks: string[] }[];
+            }[];
+          };
+          return (
+            structure.chapters
+              .find(chapter => chapter.dashedName === answers.chapter)
+              ?.modules.map(module => module.dashedName) ?? []
+          );
+        },
+        when: (answers: CreateBlockArgs) =>
+          chapterBasedSuperBlocks.includes(answers.superBlock)
+      },
+      {
+        name: 'position',
+        message: 'At which position does this appear in the module?',
+        default: 1,
+        validate: (position: string) => {
+          return parseInt(position, 10) > 0
+            ? true
+            : 'Position must be an number greater than zero.';
+        },
+        when: (answers: CreateBlockArgs) =>
+          chapterBasedSuperBlocks.includes(answers.superBlock),
+        filter: (position: string) => {
+          return parseInt(position, 10);
+        }
+      }
+    ])
+  )
   .then(
     async ({
       superBlock,
diff --git a/tools/challenge-helper-scripts/create-project.ts b/tools/challenge-helper-scripts/create-project.ts
index daacce39061..d431d8aca51 100644
--- a/tools/challenge-helper-scripts/create-project.ts
+++ b/tools/challenge-helper-scripts/create-project.ts
@@ -15,7 +15,12 @@ import {
   writeBlockStructure
 } from '../../curriculum/file-handler';
 import { superBlockToFilename } from '../../curriculum/build-curriculum';
-import { createQuizFile, createStepFile, validateBlockName } from './utils';
+import {
+  createQuizFile,
+  createStepFile,
+  validateBlockName,
+  getAllBlocks
+} from './utils';
 import { getBaseMeta } from './helpers/get-base-meta';
 import { createIntroMD } from './helpers/create-intro';
 import {
@@ -293,145 +298,151 @@ async function getModules(superBlock: string, chapterName: string) {
   return modifiedChapter?.modules;
 }
 
-void prompt([
-  {
-    name: 'superBlock',
-    message: 'Which certification does this belong to?',
-    default: SuperBlocks.FullStackDeveloper,
-    type: 'list',
-    choices: Object.values(SuperBlocks)
-  },
-  {
-    name: 'block',
-    message: 'What is the dashed name (in kebab-case) for this project?',
-    validate: validateBlockName,
-    filter: (block: string) => {
-      return block.toLowerCase().trim();
-    }
-  },
-  {
-    name: 'title',
-    default: ({ block }: { block: string }) => block
-  },
-  {
-    name: 'helpCategory',
-    message: 'Choose a help category',
-    default: 'HTML-CSS',
-    type: 'list',
-    choices: helpCategories
-  },
-  {
-    name: 'blockType',
-    message: 'Choose a block type',
-    default: BlockTypes.lab,
-    type: 'list',
-    choices: Object.values(BlockTypes),
-    when: (answers: CreateProjectArgs) =>
-      chapterBasedSuperBlocks.includes(answers.superBlock)
-  },
-  {
-    name: 'blockLayout',
-    message: 'Choose a block layout',
+void getAllBlocks()
+  .then(existingBlocks =>
+    prompt([
+      {
+        name: 'superBlock',
+        message: 'Which certification does this belong to?',
+        default: SuperBlocks.FullStackDeveloper,
+        type: 'list',
+        choices: Object.values(SuperBlocks)
+      },
+      {
+        name: 'block',
+        message: 'What is the dashed name (in kebab-case) for this project?',
+        validate: (block: string) => validateBlockName(block, existingBlocks),
+        filter: (block: string) => {
+          return block.toLowerCase().trim();
+        }
+      },
+      {
+        name: 'title',
+        default: ({ block }: { block: string }) => block
+      },
+      {
+        name: 'helpCategory',
+        message: 'Choose a help category',
+        default: 'HTML-CSS',
+        type: 'list',
+        choices: helpCategories
+      },
+      {
+        name: 'blockType',
+        message: 'Choose a block type',
+        default: BlockTypes.lab,
+        type: 'list',
+        choices: Object.values(BlockTypes),
+        when: (answers: CreateProjectArgs) =>
+          chapterBasedSuperBlocks.includes(answers.superBlock)
+      },
+      {
+        name: 'blockLayout',
+        message: 'Choose a block layout',
 
-    default: (answers: { blockType: BlockTypes }) =>
-      answers.blockType == BlockTypes.quiz
-        ? BlockLayouts.Link
-        : BlockLayouts.ChallengeList,
-    type: 'list',
-    choices: Object.values(BlockLayouts),
-    when: (answers: CreateProjectArgs) =>
-      chapterBasedSuperBlocks.includes(answers.superBlock)
-  },
-  {
-    name: 'questionCount',
-    message: 'Choose a question count',
-    default: 20,
-    type: 'list',
-    choices: [10, 20],
-    when: (answers: CreateProjectArgs) => answers.blockType === BlockTypes.quiz
-  },
-  {
-    name: 'chapter',
-    message: 'What chapter should this project go in?',
-    default: 'html',
-    type: 'list',
-    choices: async (answers: CreateProjectArgs) => {
-      const chapters = await getChapters(answers.superBlock);
-      return chapters.map(x => x.dashedName);
-    },
-    when: (answers: CreateProjectArgs) =>
-      chapterBasedSuperBlocks.includes(answers.superBlock)
-  },
-  {
-    name: 'module',
-    message: 'What module should this project go in?',
-    default: 'html',
-    type: 'list',
-    choices: async (answers: CreateProjectArgs) => {
-      const modules = await getModules(answers.superBlock, answers.chapter!);
-      return modules!.map(x => x.dashedName);
-    },
-    when: (answers: CreateProjectArgs) =>
-      chapterBasedSuperBlocks.includes(answers.superBlock)
-  },
-  {
-    name: 'position',
-    message: 'At which position does this appear in the module?',
-    default: 1,
-    validate: (position: string) => {
-      return parseInt(position, 10) > 0
-        ? true
-        : 'Position must be an number greater than zero.';
-    },
-    when: (answers: CreateProjectArgs) =>
-      chapterBasedSuperBlocks.includes(answers.superBlock),
-    filter: (position: string) => {
-      return parseInt(position, 10);
-    }
-  },
-  {
-    name: 'order',
-    message: 'Which position does this appear in the certificate?',
-    default: 42,
-    validate: (order: string) => {
-      return parseInt(order, 10) > 0
-        ? true
-        : 'Order must be an number greater than zero.';
-    },
-    when: (answers: CreateProjectArgs) =>
-      !chapterBasedSuperBlocks.includes(answers.superBlock),
-    filter: (order: string) => {
-      return parseInt(order, 10);
-    }
-  }
-])
-  .then(
-    async ({
-      superBlock,
-      block,
-      title,
-      helpCategory,
-      blockType,
-      blockLayout,
-      questionCount,
-      chapter,
-      module,
-      position,
-      order
-    }: CreateProjectArgs) =>
-      await createProject({
+        default: (answers: { blockType: BlockTypes }) =>
+          answers.blockType == BlockTypes.quiz
+            ? BlockLayouts.Link
+            : BlockLayouts.ChallengeList,
+        type: 'list',
+        choices: Object.values(BlockLayouts),
+        when: (answers: CreateProjectArgs) =>
+          chapterBasedSuperBlocks.includes(answers.superBlock)
+      },
+      {
+        name: 'questionCount',
+        message: 'Choose a question count',
+        default: 20,
+        type: 'list',
+        choices: [10, 20],
+        when: (answers: CreateProjectArgs) =>
+          answers.blockType === BlockTypes.quiz
+      },
+      {
+        name: 'chapter',
+        message: 'What chapter should this project go in?',
+        default: 'html',
+        type: 'list',
+        choices: async (answers: CreateProjectArgs) => {
+          const chapters = await getChapters(answers.superBlock);
+          return chapters.map(x => x.dashedName);
+        },
+        when: (answers: CreateProjectArgs) =>
+          chapterBasedSuperBlocks.includes(answers.superBlock)
+      },
+      {
+        name: 'module',
+        message: 'What module should this project go in?',
+        default: 'html',
+        type: 'list',
+        choices: async (answers: CreateProjectArgs) => {
+          const modules = await getModules(
+            answers.superBlock,
+            answers.chapter!
+          );
+          return modules!.map(x => x.dashedName);
+        },
+        when: (answers: CreateProjectArgs) =>
+          chapterBasedSuperBlocks.includes(answers.superBlock)
+      },
+      {
+        name: 'position',
+        message: 'At which position does this appear in the module?',
+        default: 1,
+        validate: (position: string) => {
+          return parseInt(position, 10) > 0
+            ? true
+            : 'Position must be an number greater than zero.';
+        },
+        when: (answers: CreateProjectArgs) =>
+          chapterBasedSuperBlocks.includes(answers.superBlock),
+        filter: (position: string) => {
+          return parseInt(position, 10);
+        }
+      },
+      {
+        name: 'order',
+        message: 'Which position does this appear in the certificate?',
+        default: 42,
+        validate: (order: string) => {
+          return parseInt(order, 10) > 0
+            ? true
+            : 'Order must be an number greater than zero.';
+        },
+        when: (answers: CreateProjectArgs) =>
+          !chapterBasedSuperBlocks.includes(answers.superBlock),
+        filter: (order: string) => {
+          return parseInt(order, 10);
+        }
+      }
+    ]).then(
+      async ({
         superBlock,
         block,
+        title,
         helpCategory,
         blockType,
         blockLayout,
         questionCount,
-        title,
         chapter,
         module,
         position,
         order
-      })
+      }: CreateProjectArgs) =>
+        await createProject({
+          superBlock,
+          block,
+          helpCategory,
+          blockType,
+          blockLayout,
+          questionCount,
+          title,
+          chapter,
+          module,
+          position,
+          order
+        })
+    )
   )
   .then(() =>
     console.log(
diff --git a/tools/challenge-helper-scripts/create-quiz.ts b/tools/challenge-helper-scripts/create-quiz.ts
index b834bc6f20a..d140b6bb34a 100644
--- a/tools/challenge-helper-scripts/create-quiz.ts
+++ b/tools/challenge-helper-scripts/create-quiz.ts
@@ -10,7 +10,7 @@ import {
   writeBlockStructure
 } from '../../curriculum/file-handler';
 import { superBlockToFilename } from '../../curriculum/build-curriculum';
-import { createQuizFile, validateBlockName } from './utils';
+import { createQuizFile, getAllBlocks, validateBlockName } from './utils';
 import { getBaseMeta } from './helpers/get-base-meta';
 import { createIntroMD } from './helpers/create-intro';
 import { updateSimpleSuperblockStructure } from './helpers/create-project';
@@ -145,41 +145,44 @@ function withTrace<Args extends unknown[], Result>(
   });
 }
 
-void prompt([
-  {
-    name: 'superBlock',
-    message: 'Which certification does this belong to?',
-    default: SuperBlocks.FullStackDeveloper,
-    type: 'list',
-    choices: Object.values(SuperBlocks)
-  },
-  {
-    name: 'block',
-    message: 'What is the dashed name (in kebab-case) for this quiz?',
-    validate: validateBlockName,
-    filter: (block: string) => {
-      return block.toLowerCase().trim();
-    }
-  },
-  {
-    name: 'title',
-    default: ({ block }: { block: string }) => block
-  },
-  {
-    name: 'helpCategory',
-    message: 'Choose a help category',
-    default: 'HTML-CSS',
-    type: 'list',
-    choices: helpCategories
-  },
-  {
-    name: 'questionCount',
-    message: 'Should this quiz have either ten or twenty questions?',
-    default: 20,
-    type: 'list',
-    choices: [20, 10]
-  }
-])
+void getAllBlocks()
+  .then(existingBlocks =>
+    prompt([
+      {
+        name: 'superBlock',
+        message: 'Which certification does this belong to?',
+        default: SuperBlocks.FullStackDeveloper,
+        type: 'list',
+        choices: Object.values(SuperBlocks)
+      },
+      {
+        name: 'block',
+        message: 'What is the dashed name (in kebab-case) for this quiz?',
+        validate: (block: string) => validateBlockName(block, existingBlocks),
+        filter: (block: string) => {
+          return block.toLowerCase().trim();
+        }
+      },
+      {
+        name: 'title',
+        default: ({ block }: { block: string }) => block
+      },
+      {
+        name: 'helpCategory',
+        message: 'Choose a help category',
+        default: 'HTML-CSS',
+        type: 'list',
+        choices: helpCategories
+      },
+      {
+        name: 'questionCount',
+        message: 'Should this quiz have either ten or twenty questions?',
+        default: 20,
+        type: 'list',
+        choices: [20, 10]
+      }
+    ])
+  )
   .then(
     async ({
       superBlock,
diff --git a/tools/challenge-helper-scripts/utils.test.ts b/tools/challenge-helper-scripts/utils.test.ts
index f4bc5576172..0cbceb73620 100644
--- a/tools/challenge-helper-scripts/utils.test.ts
+++ b/tools/challenge-helper-scripts/utils.test.ts
@@ -98,24 +98,29 @@ describe('Challenge utils helper scripts', () => {
   describe('createProject util', () => {
     it('should allow alphanumerical names with trailing whitespace', () => {
       expect(
-        validateBlockName('learn-callbacks-by-creating-a-bookshelf ')
+        validateBlockName('learn-callbacks-by-creating-a-bookshelf ', [])
       ).toBe(true);
     });
     it('should allow alphanumerical names with no trailing whitespace', () => {
-      expect(validateBlockName('learn-callbacks-by-creating-a-bookshelf')).toBe(
-        true
-      );
+      expect(
+        validateBlockName('learn-callbacks-by-creating-a-bookshelf', [])
+      ).toBe(true);
     });
     it('should not allow non-kebab case names', () => {
-      expect(validateBlockName('learnCallbacksBetter')).toBe(
+      expect(validateBlockName('learnCallbacksBetter', [])).toBe(
         'please use alphanumerical characters and kebab case'
       );
     });
     it('should not allow white space names', () => {
-      expect(validateBlockName(' ')).toBe('please enter a dashed name');
+      expect(validateBlockName(' ', [])).toBe('please enter a dashed name');
     });
     it('should not allow empty names', () => {
-      expect(validateBlockName('')).toBe('please enter a dashed name');
+      expect(validateBlockName('', [])).toBe('please enter a dashed name');
+    });
+    it('should not allow names that already exist', () => {
+      expect(validateBlockName('name', ['name'])).toBe(
+        'a block with this name already exists'
+      );
     });
   });
 
diff --git a/tools/challenge-helper-scripts/utils.ts b/tools/challenge-helper-scripts/utils.ts
index f761ae9e072..e5f418d2c83 100644
--- a/tools/challenge-helper-scripts/utils.ts
+++ b/tools/challenge-helper-scripts/utils.ts
@@ -2,7 +2,10 @@ import fs from 'fs';
 import path from 'path';
 import ObjectID from 'bson-objectid';
 import matter from 'gray-matter';
+import { uniq } from 'lodash';
+
 import { challengeTypes } from '../../shared/config/challenge-types';
+import { parseCurriculumStructure } from '../../curriculum/build-curriculum';
 import { parseMDSync } from '../challenge-parser/parser';
 import { getMetaData, updateMetaData } from './helpers/project-metadata';
 import { getProjectPath } from './helpers/get-project-info';
@@ -28,6 +31,19 @@ interface QuizOptions {
   questionCount: number;
 }
 
+export async function getAllBlocks() {
+  const { fullSuperblockList } = (await parseCurriculumStructure()) as {
+    fullSuperblockList: {
+      blocks: { dashedName: string }[];
+    }[];
+  };
+  const existingBlocks = fullSuperblockList.flatMap(({ blocks }) =>
+    blocks.map(({ dashedName }) => dashedName)
+  );
+
+  return uniq(existingBlocks);
+}
+
 const createStepFile = ({
   stepNum,
   challengeType,
@@ -259,7 +275,13 @@ const getChallenge = (challengeId: string): Challenge => {
   return challenge;
 };
 
-const validateBlockName = (block: string): boolean | string => {
+const validateBlockName = (
+  block: string,
+  existingBlocks: string[]
+): true | string => {
+  if (existingBlocks.includes(block.trim())) {
+    return 'a block with this name already exists';
+  }
   if (!block.trim().length) {
     return 'please enter a dashed name';
   }