diff --git a/.changeset/nasty-falcons-ring.md b/.changeset/nasty-falcons-ring.md
new file mode 100644
index 000000000000..2d032d6fcf6f
--- /dev/null
+++ b/.changeset/nasty-falcons-ring.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+Prevent needless prop updates causing rerenders
diff --git a/packages/kit/src/runtime/client/client.js b/packages/kit/src/runtime/client/client.js
index 16a2889d61ad..613a67ec27ed 100644
--- a/packages/kit/src/runtime/client/client.js
+++ b/packages/kit/src/runtime/client/client.js
@@ -424,8 +424,11 @@ export function create_client({ target, session, base, trailing_slash }) {
 		};
 
 		for (let i = 0; i < filtered.length; i += 1) {
-			const loaded = filtered[i].loaded;
-			result.props[`props_${i}`] = loaded ? await loaded.props : null;
+			// Only set props if the node actually updated. This prevents needless rerenders.
+			if (!current.branch.some((node) => node === filtered[i])) {
+				const loaded = filtered[i].loaded;
+				result.props[`props_${i}`] = loaded ? await loaded.props : null;
+			}
 		}
 
 		const page_changed =
diff --git a/packages/kit/test/apps/basics/src/routes/load/layout-props/__layout.svelte b/packages/kit/test/apps/basics/src/routes/load/layout-props/__layout.svelte
new file mode 100644
index 000000000000..555061eead4b
--- /dev/null
+++ b/packages/kit/test/apps/basics/src/routes/load/layout-props/__layout.svelte
@@ -0,0 +1,26 @@
+<script context="module">
+	/** @type {import('@sveltejs/kit').Load} */
+	export async function load({ session }) {
+		session; // not necessary, but prevents the argument from being marked as unused
+
+		return {
+			props: {
+				// Needs to be an object, else Svelte will do by-value-comparison and skip rerender
+				obj: {}
+			}
+		};
+	}
+</script>
+
+<script>
+	import { session } from '$app/stores';
+	/** @type {any} */
+	export let obj;
+
+	let count = 0;
+	$: obj && count++;
+</script>
+
+<h1>{count}</h1>
+<button on:click={() => ($session.calls = 123)}>Rerun Layout Load Function</button>
+<slot />
diff --git a/packages/kit/test/apps/basics/src/routes/load/layout-props/a.svelte b/packages/kit/test/apps/basics/src/routes/load/layout-props/a.svelte
new file mode 100644
index 000000000000..77fcba3ded86
--- /dev/null
+++ b/packages/kit/test/apps/basics/src/routes/load/layout-props/a.svelte
@@ -0,0 +1,2 @@
+<h2>On a</h2>
+<a href="/load/layout-props/b">to b</a>
diff --git a/packages/kit/test/apps/basics/src/routes/load/layout-props/b.svelte b/packages/kit/test/apps/basics/src/routes/load/layout-props/b.svelte
new file mode 100644
index 000000000000..cb5b54229446
--- /dev/null
+++ b/packages/kit/test/apps/basics/src/routes/load/layout-props/b.svelte
@@ -0,0 +1,2 @@
+<h2>On b</h2>
+<a href="/load/layout-props/a">to a</a>
diff --git a/packages/kit/test/apps/basics/test/client.test.js b/packages/kit/test/apps/basics/test/client.test.js
index 4046d0c7dacf..d100c66e2307 100644
--- a/packages/kit/test/apps/basics/test/client.test.js
+++ b/packages/kit/test/apps/basics/test/client.test.js
@@ -370,6 +370,15 @@ test.describe('Load', () => {
 		expect(await page.textContent('h1')).toBe("I didn't break!");
 	});
 
+	test("layout props don't cause rerender when unchanged", async ({ page, clicknav }) => {
+		await page.goto('/load/layout-props/a');
+		expect(await page.textContent('h1')).toBe('1');
+		await clicknav('[href="/load/layout-props/b"]');
+		expect(await page.textContent('h1')).toBe('1');
+		await page.click('button');
+		expect(await page.textContent('h1')).toBe('2');
+	});
+
 	if (process.env.DEV) {
 		test('using window.fetch causes a warning', async ({ page }) => {
 			const port = 5173;