diff --git a/packages/data-controls/CHANGELOG.md b/packages/data-controls/CHANGELOG.md
index 88c17d89a40159..9d48389c46d0a6 100644
--- a/packages/data-controls/CHANGELOG.md
+++ b/packages/data-controls/CHANGELOG.md
@@ -6,6 +6,10 @@
 
 -   Raise the minimum required Node.js version to `>=22.13.0`, for stable `require(esm)` support ([#84313](https://github.com/WordPress/gutenberg/pull/84313)).
 
+### Internal
+
+-   Convert the tests to TypeScript, and split tsconfig into a build project and a default dev project so the tests are type checked without publishing their declarations ([#84852](https://github.com/WordPress/gutenberg/pull/84852)).
+
 ## 4.57.0 (2026-10-07)
 
 ### Bug Fixes
diff --git a/packages/data-controls/src/test/index.js b/packages/data-controls/src/test/index.ts
similarity index 75%
rename from packages/data-controls/src/test/index.js
rename to packages/data-controls/src/test/index.ts
index b22f3ca08990e2..306e3b4f87f43d 100644
--- a/packages/data-controls/src/test/index.js
+++ b/packages/data-controls/src/test/index.ts
@@ -11,12 +11,14 @@ describe( 'controls', () => {
 			mockedTriggerFetch.mockClear();
 		} );
 		it( 'invokes the triggerFetch function', () => {
-			controls.API_FETCH( { request: '' } );
+			controls.API_FETCH( { request: { path: '' } } );
 			expect( mockedTriggerFetch ).toHaveBeenCalledTimes( 1 );
 		} );
 		it( 'invokes the triggerFetch function with the passed in request', () => {
-			controls.API_FETCH( { request: 'foo' } );
-			expect( mockedTriggerFetch ).toHaveBeenCalledWith( 'foo' );
+			controls.API_FETCH( { request: { path: 'foo' } } );
+			expect( mockedTriggerFetch ).toHaveBeenCalledWith( {
+				path: 'foo',
+			} );
 		} );
 	} );
 } );
diff --git a/packages/data-controls/tsconfig.build.json b/packages/data-controls/tsconfig.build.json
new file mode 100644
index 00000000000000..fc33b902d4a832
--- /dev/null
+++ b/packages/data-controls/tsconfig.build.json
@@ -0,0 +1,12 @@
+{
+	"$schema": "https://json.schemastore.org/tsconfig.json",
+	"extends": "@wordpress/monorepo-tools/tsconfig/base.json",
+	"compilerOptions": {
+		"types": [ "gutenberg-env" ]
+	},
+	"references": [
+		{ "path": "../api-fetch/tsconfig.build.json" },
+		{ "path": "../data" },
+		{ "path": "../deprecated/tsconfig.build.json" }
+	]
+}
diff --git a/packages/data-controls/tsconfig.json b/packages/data-controls/tsconfig.json
index fc33b902d4a832..f5ece948ea1f5e 100644
--- a/packages/data-controls/tsconfig.json
+++ b/packages/data-controls/tsconfig.json
@@ -1,12 +1,8 @@
 {
 	"$schema": "https://json.schemastore.org/tsconfig.json",
-	"extends": "@wordpress/monorepo-tools/tsconfig/base.json",
+	"extends": "@wordpress/monorepo-tools/tsconfig/dev.base.json",
 	"compilerOptions": {
-		"types": [ "gutenberg-env" ]
+		"types": [ "gutenberg-env", "gutenberg-vitest-test-env" ]
 	},
-	"references": [
-		{ "path": "../api-fetch/tsconfig.build.json" },
-		{ "path": "../data" },
-		{ "path": "../deprecated/tsconfig.build.json" }
-	]
+	"references": [ { "path": "./tsconfig.build.json" } ]
 }
diff --git a/tsconfig.build.json b/tsconfig.build.json
index 73d2ba3a553ba2..6379cb9ed71c24 100644
--- a/tsconfig.build.json
+++ b/tsconfig.build.json
@@ -23,7 +23,7 @@
 		{ "path": "packages/core-data/tsconfig.build.json" },
 		{ "path": "packages/core-fields/tsconfig.build.json" },
 		{ "path": "packages/data" },
-		{ "path": "packages/data-controls" },
+		{ "path": "packages/data-controls/tsconfig.build.json" },
 		{ "path": "packages/dataviews/tsconfig.build.json" },
 		{ "path": "packages/date/tsconfig.build.json" },
 		{ "path": "packages/deprecated/tsconfig.build.json" },
diff --git a/tsconfig.json b/tsconfig.json
index 5eec41b28093a0..6e922bb40bf165 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -18,6 +18,7 @@
 		{ "path": "packages/core-actions" },
 		{ "path": "packages/core-data" },
 		{ "path": "packages/core-fields" },
+		{ "path": "packages/data-controls" },
 		{ "path": "packages/dataviews" },
 		{ "path": "packages/dataviews/tsconfig.stories.json" },
 		{ "path": "packages/date" },