diff --git a/packages/astro/src/core/config/config.ts b/packages/astro/src/core/config/config.ts
index 6350bb80ae..eab2ffba1d 100644
--- a/packages/astro/src/core/config/config.ts
+++ b/packages/astro/src/core/config/config.ts
@@ -146,11 +146,6 @@ export async function resolveConfig(
 		inlineUserConfig.root = root;
 	}
 
-	const generatedTsConfigUrl = new URL('./.astro/tsconfig.json', inlineUserConfig.root);
-	if (!fsMod.existsSync(generatedTsConfigUrl)) {
-		fsMod.writeFileSync(generatedTsConfigUrl, '{}', 'utf-8');
-	}
-
 	const userConfig = await loadConfig(root, inlineOnlyConfig.configFile, fsMod);
 	const mergedConfig = mergeConfig(userConfig, inlineUserConfig);
 	// First-Pass Validation
@@ -170,5 +165,12 @@ export async function resolveConfig(
 		throw e;
 	}
 
+	if (astroConfig.experimental.typescript) {
+		const generatedTsConfigUrl = new URL('./.astro/tsconfig.json', astroConfig.root);
+		if (!fsMod.existsSync(generatedTsConfigUrl)) {
+			fsMod.writeFileSync(generatedTsConfigUrl, '{}', 'utf-8');
+		}
+	}
+
 	return { userConfig: mergedConfig, astroConfig };
 }