diff --git a/src/lib/server/scheduling.ts b/src/lib/server/scheduling.ts
index 7b38096..4160e54 100644
--- a/src/lib/server/scheduling.ts
+++ b/src/lib/server/scheduling.ts
@@ -82,6 +82,54 @@ export async function findBookingRoomConflict({
 	return conflict ?? null;
 }
 
+export async function findBookingContractRoomConflict({
+	organizationId,
+	roomId,
+	startsAt,
+	endsAt,
+	status
+}: {
+	organizationId: string;
+	roomId: string;
+	startsAt: string;
+	endsAt: string;
+	status: string;
+}): Promise<ContractRoomConflict | null> {
+	if (status === 'cancelled') return null;
+
+	const startDate = startsAt.slice(0, 10);
+	const endDate = endsAt.slice(0, 10);
+
+	const [conflict] = await db
+		.select({
+			contractId: contracts.id,
+			roomId: contractRooms.roomId,
+			roomName: rooms.name,
+			startDate: contracts.startDate,
+			endDate: contracts.endDate
+		})
+		.from(contractRooms)
+		.innerJoin(contracts, eq(contractRooms.contractId, contracts.id))
+		.innerJoin(rooms, eq(contractRooms.roomId, rooms.id))
+		.where(
+			and(
+				eq(contracts.organizationId, organizationId),
+				eq(contracts.status, 'active'),
+				isNull(contracts.archivedAt),
+				eq(contractRooms.roomId, roomId),
+				eq(rooms.organizationId, organizationId),
+				inArray(rooms.type, rentableContractRoomTypes),
+				isNull(rooms.archivedAt),
+				lte(contracts.startDate, endDate),
+				gte(contracts.endDate, startDate)
+			)
+		)
+		.orderBy(asc(contracts.startDate), asc(rooms.name))
+		.limit(1);
+
+	return conflict ?? null;
+}
+
 export async function findActiveContractRoomConflict({
 	organizationId,
 	roomIds,
diff --git a/src/routes/dashboard/clients/[id]/bookings/+page.server.ts b/src/routes/dashboard/clients/[id]/bookings/+page.server.ts
index 76a75bb..bdc7ce6 100644
--- a/src/routes/dashboard/clients/[id]/bookings/+page.server.ts
+++ b/src/routes/dashboard/clients/[id]/bookings/+page.server.ts
@@ -4,7 +4,12 @@ import { zod4 } from 'sveltekit-superforms/adapters';
 import { db } from '$lib/server/db';
 import { bookings, clients, rooms, services } from '$lib/server/db/schema';
 import { loadOrganizationContext } from '$lib/server/organizations';
-import { bookingConflictMessage, findBookingRoomConflict } from '$lib/server/scheduling';
+import {
+	bookingConflictMessage,
+	contractConflictMessage,
+	findBookingContractRoomConflict,
+	findBookingRoomConflict
+} from '$lib/server/scheduling';
 import { archiveSchema } from '$lib/schemas/shared.schema';
 import { bookingCreateSchema, bookingEditSchema } from '$lib/schemas/bookings.schema';
 import type { Actions, PageServerLoad } from './$types';
@@ -102,6 +107,17 @@ export const actions: Actions = {
 		});
 		if (conflict) return setError(form, 'roomId', bookingConflictMessage(conflict));
 
+		const contractConflict = await findBookingContractRoomConflict({
+			organizationId: activeOrganizationId,
+			roomId: form.data.roomId,
+			startsAt: form.data.startsAt,
+			endsAt: form.data.endsAt,
+			status: form.data.status
+		});
+		if (contractConflict) {
+			return setError(form, 'roomId', contractConflictMessage(contractConflict));
+		}
+
 		try {
 			await db.insert(bookings).values({
 				id: crypto.randomUUID(),
@@ -143,6 +159,17 @@ export const actions: Actions = {
 		});
 		if (conflict) return setError(form, 'roomId', bookingConflictMessage(conflict));
 
+		const contractConflict = await findBookingContractRoomConflict({
+			organizationId: activeOrganizationId,
+			roomId: form.data.roomId,
+			startsAt: form.data.startsAt,
+			endsAt: form.data.endsAt,
+			status: form.data.status
+		});
+		if (contractConflict) {
+			return setError(form, 'roomId', contractConflictMessage(contractConflict));
+		}
+
 		try {
 			await db
 				.update(bookings)
diff --git a/src/routes/dashboard/invoices/[id]/+page.svelte b/src/routes/dashboard/invoices/[id]/+page.svelte
index b285117..7aaf60f 100644
--- a/src/routes/dashboard/invoices/[id]/+page.svelte
+++ b/src/routes/dashboard/invoices/[id]/+page.svelte
@@ -215,7 +215,7 @@
 	{#if data.invoice.notes}
 		<section class="rounded-lg border border-border p-4">
 			<h2 class="text-sm font-semibold">Notes</h2>
-			<p class="mt-2 whitespace-pre-wrap text-sm text-muted-foreground">{data.invoice.notes}</p>
+			<p class="mt-2 text-sm whitespace-pre-wrap text-muted-foreground">{data.invoice.notes}</p>
 		</section>
 	{/if}
 </div>