diff --git a/src/server/routers/_app.ts b/src/server/routers/_app.ts
index 1e07ad5..ee70c07 100644
--- a/src/server/routers/_app.ts
+++ b/src/server/routers/_app.ts
@@ -51,6 +51,7 @@ import { deliberationRouter } from './deliberation'
 import { resultLockRouter } from './resultLock'
 // Grand-finale logistics
 import { finalistRouter } from './finalist'
+import { logisticsRouter } from './logistics'
 
 /**
  * Root tRPC router that combines all domain routers
@@ -108,6 +109,7 @@ export const appRouter = router({
   resultLock: resultLockRouter,
   // Grand-finale logistics
   finalist: finalistRouter,
+  logistics: logisticsRouter,
 })
 
 export type AppRouter = typeof appRouter
diff --git a/src/server/routers/logistics.ts b/src/server/routers/logistics.ts
new file mode 100644
index 0000000..b00b484
--- /dev/null
+++ b/src/server/routers/logistics.ts
@@ -0,0 +1,56 @@
+import { z } from 'zod'
+import { router, adminProcedure } from '../trpc'
+import { logAudit } from '../utils/audit'
+
+export const logisticsRouter = router({
+  /** Read the hotel for a program (1:1). Null if not yet set. */
+  getHotel: adminProcedure
+    .input(z.object({ programId: z.string() }))
+    .query(async ({ ctx, input }) => {
+      return ctx.prisma.hotel.findUnique({ where: { programId: input.programId } })
+    }),
+
+  /** Create or update the program's hotel. Empty link strings are stored as null. */
+  upsertHotel: adminProcedure
+    .input(
+      z.object({
+        programId: z.string(),
+        name: z.string().min(1).max(200),
+        address: z.string().max(500).optional(),
+        link: z
+          .string()
+          .url()
+          .or(z.literal(''))
+          .optional(),
+        notes: z.string().max(2000).optional(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const link = input.link && input.link.trim().length > 0 ? input.link : null
+      const hotel = await ctx.prisma.hotel.upsert({
+        where: { programId: input.programId },
+        create: {
+          programId: input.programId,
+          name: input.name,
+          address: input.address ?? null,
+          link,
+          notes: input.notes ?? null,
+        },
+        update: {
+          name: input.name,
+          address: input.address ?? null,
+          link,
+          notes: input.notes ?? null,
+        },
+      })
+      await logAudit({
+        prisma: ctx.prisma,
+        userId: ctx.user.id,
+        action: 'HOTEL_UPSERT',
+        entityType: 'Hotel',
+        entityId: hotel.id,
+        detailsJson: { programId: input.programId, name: input.name },
+      })
+      return hotel
+    }),
+})
diff --git a/tests/unit/logistics-hotel.test.ts b/tests/unit/logistics-hotel.test.ts
new file mode 100644
index 0000000..f56d04d
--- /dev/null
+++ b/tests/unit/logistics-hotel.test.ts
@@ -0,0 +1,99 @@
+import { afterAll, describe, expect, it } from 'vitest'
+import { prisma, createCaller } from '../setup'
+import { createTestUser, createTestProgram, cleanupTestData, uid } from '../helpers'
+import { logisticsRouter } from '../../src/server/routers/logistics'
+
+describe('logistics.getHotel + upsertHotel', () => {
+  const programIds: string[] = []
+  const userIds: string[] = []
+
+  afterAll(async () => {
+    for (const programId of programIds) {
+      await prisma.hotel.deleteMany({ where: { programId } })
+      await cleanupTestData(programId, [])
+    }
+    if (userIds.length > 0) {
+      await prisma.user.deleteMany({ where: { id: { in: userIds } } })
+    }
+  })
+
+  it('getHotel returns null when no hotel set', async () => {
+    const admin = await createTestUser('SUPER_ADMIN')
+    userIds.push(admin.id)
+    const program = await createTestProgram({ name: `hotel-empty-${uid()}` })
+    programIds.push(program.id)
+    const caller = createCaller(logisticsRouter, {
+      id: admin.id,
+      email: admin.email,
+      role: 'SUPER_ADMIN',
+    })
+    const hotel = await caller.getHotel({ programId: program.id })
+    expect(hotel).toBeNull()
+  })
+
+  it('upsertHotel creates a hotel on first call', async () => {
+    const admin = await createTestUser('SUPER_ADMIN')
+    userIds.push(admin.id)
+    const program = await createTestProgram({ name: `hotel-create-${uid()}` })
+    programIds.push(program.id)
+    const caller = createCaller(logisticsRouter, {
+      id: admin.id,
+      email: admin.email,
+      role: 'SUPER_ADMIN',
+    })
+    const hotel = await caller.upsertHotel({
+      programId: program.id,
+      name: 'Hotel Hermitage',
+      address: 'Square Beaumarchais, 98000 Monaco',
+      link: 'https://hotelhermitagemontecarlo.com',
+      notes: 'Adjacent to the venue',
+    })
+    expect(hotel.name).toBe('Hotel Hermitage')
+    expect(hotel.programId).toBe(program.id)
+    expect(hotel.link).toContain('hermitage')
+  })
+
+  it('upsertHotel updates the existing hotel on second call', async () => {
+    const admin = await createTestUser('SUPER_ADMIN')
+    userIds.push(admin.id)
+    const program = await createTestProgram({ name: `hotel-update-${uid()}` })
+    programIds.push(program.id)
+    const caller = createCaller(logisticsRouter, {
+      id: admin.id,
+      email: admin.email,
+      role: 'SUPER_ADMIN',
+    })
+    await caller.upsertHotel({
+      programId: program.id,
+      name: 'Hotel A',
+    })
+    const updated = await caller.upsertHotel({
+      programId: program.id,
+      name: 'Hotel B',
+      notes: 'Changed our mind',
+    })
+    expect(updated.name).toBe('Hotel B')
+    expect(updated.notes).toBe('Changed our mind')
+    // Still 1:1 — no second hotel row
+    const count = await prisma.hotel.count({ where: { programId: program.id } })
+    expect(count).toBe(1)
+  })
+
+  it('upsertHotel normalizes empty link string to null', async () => {
+    const admin = await createTestUser('SUPER_ADMIN')
+    userIds.push(admin.id)
+    const program = await createTestProgram({ name: `hotel-empty-link-${uid()}` })
+    programIds.push(program.id)
+    const caller = createCaller(logisticsRouter, {
+      id: admin.id,
+      email: admin.email,
+      role: 'SUPER_ADMIN',
+    })
+    const hotel = await caller.upsertHotel({
+      programId: program.id,
+      name: 'No-link Hotel',
+      link: '',
+    })
+    expect(hotel.link).toBeNull()
+  })
+})