diff --git a/change/@microsoft-fast-html-children-e496857c-3c19-492c-8845-675d1267f3ac.json b/change/@microsoft-fast-html-children-e496857c-3c19-492c-8845-675d1267f3ac.json
new file mode 100644
index 00000000000..49947548255
--- /dev/null
+++ b/change/@microsoft-fast-html-children-e496857c-3c19-492c-8845-675d1267f3ac.json
@@ -0,0 +1,7 @@
+{
+ "type": "none",
+ "comment": "chore(fast-html): use @microsoft/fast-build to build children fixture",
+ "packageName": "@microsoft/fast-html",
+ "email": "7559015+janechu@users.noreply.github.com",
+ "dependentChangeType": "none"
+}
diff --git a/packages/fast-html/scripts/build-fixtures.js b/packages/fast-html/scripts/build-fixtures.js
index 18212bacb0f..1b7ee628d16 100644
--- a/packages/fast-html/scripts/build-fixtures.js
+++ b/packages/fast-html/scripts/build-fixtures.js
@@ -7,7 +7,7 @@ import { fileURLToPath } from "node:url";
// Builds test fixtures using @microsoft/fast-build. Add fixture names here
// incrementally as each one is verified to work with the fast-build CLI.
-const fixtures = ["attribute", "binding", "event", "ref", "slotted", "when", "repeat", "repeat-event"];
+const fixtures = ["attribute", "binding", "event", "ref", "slotted", "when", "repeat", "repeat-event", "children"];
const __dirname = dirname(fileURLToPath(import.meta.url));
const require = createRequire(import.meta.url);
diff --git a/packages/fast-html/test/fixtures/children/entry.html b/packages/fast-html/test/fixtures/children/entry.html
new file mode 100644
index 00000000000..573f9c22a43
--- /dev/null
+++ b/packages/fast-html/test/fixtures/children/entry.html
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/packages/fast-html/test/fixtures/children/index.html b/packages/fast-html/test/fixtures/children/index.html
index 8556a0dbc40..8b89c06899d 100644
--- a/packages/fast-html/test/fixtures/children/index.html
+++ b/packages/fast-html/test/fixtures/children/index.html
@@ -1,23 +1,15 @@
-
+
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
diff --git a/packages/fast-html/test/fixtures/children/state.json b/packages/fast-html/test/fixtures/children/state.json
new file mode 100644
index 00000000000..88ee9db7e6f
--- /dev/null
+++ b/packages/fast-html/test/fixtures/children/state.json
@@ -0,0 +1,3 @@
+{
+ "list": ["Foo", "Bar"]
+}
diff --git a/packages/fast-html/test/fixtures/children/templates.html b/packages/fast-html/test/fixtures/children/templates.html
new file mode 100644
index 00000000000..52c239daf52
--- /dev/null
+++ b/packages/fast-html/test/fixtures/children/templates.html
@@ -0,0 +1,3 @@
+
+
+