diff --git a/mvp/b2c/src/app/panel/[id]/page.tsx b/mvp/b2c/src/app/panel/[id]/page.tsx
index 49533fc..04d6763 100644
--- a/mvp/b2c/src/app/panel/[id]/page.tsx
+++ b/mvp/b2c/src/app/panel/[id]/page.tsx
@@ -10,6 +10,8 @@ import {
   formatEuros,
   formatFecha,
 } from '@/lib/funnel';
+import { recalcularPresupuesto } from '../actions';
+import type { BudgetResult } from '@/budget/types';
 
 export const dynamic = 'force-dynamic';
 
@@ -30,6 +32,9 @@ export default async function LeadDetailPage({ params }: { params: Promise<{ id:
   const { lead, fotos, eventos, precision } = data;
   const reachedStages = new Set(eventos.map((e) => e.stage));
 
+  const snapshot = lead.desgloseSnapshot as { result: BudgetResult } | null;
+  const desglose = snapshot?.result ?? null;
+
   return (
     <div className="flex flex-col gap-6">
       <Link href="/panel" className="text-sm text-gray-500 hover:text-black w-fit">
@@ -208,6 +213,98 @@ export default async function LeadDetailPage({ params }: { params: Promise<{ id:
           </div>
         </Section>
       )}
+
+      {/* Presupuesto desglosado */}
+      <Section title="Presupuesto desglosado">
+        <form action={recalcularPresupuesto.bind(null, lead.id)}>
+          <button
+            type="submit"
+            className="inline-flex items-center gap-2 px-4 py-2 rounded-lg bg-black text-white text-sm font-semibold w-fit hover:bg-gray-800"
+          >
+            Recalcular presupuesto
+          </button>
+        </form>
+
+        {desglose ? (
+          <div className="flex flex-col gap-4 mt-2">
+            {/* Partidas */}
+            <table className="w-full text-sm">
+              <thead>
+                <tr className="text-left text-xs text-gray-400 uppercase tracking-wide border-b border-gray-100">
+                  <th className="pb-2 font-semibold">Partida</th>
+                  <th className="pb-2 font-semibold text-right">Importe</th>
+                </tr>
+              </thead>
+              <tbody>
+                {desglose.partidas.map((partida) => (
+                  <tr key={partida.key} className="border-b border-gray-50">
+                    <td className="py-1.5 text-gray-700">{partida.label}</td>
+                    <td className="py-1.5 text-right text-black font-medium">
+                      {formatEuros(partida.importe)}
+                    </td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+
+            {/* Subtotal, factor zona, total */}
+            <div className="flex flex-col gap-1 text-sm border-t border-gray-200 pt-3">
+              <div className="flex justify-between">
+                <span className="text-gray-500">Subtotal</span>
+                <span className="text-black font-medium">{formatEuros(desglose.subtotal)}</span>
+              </div>
+              <div className="flex justify-between">
+                <span className="text-gray-500">Factor de zona</span>
+                <span className="text-black font-medium">×{desglose.factorZona.toFixed(2)}</span>
+              </div>
+              <div className="flex justify-between mt-1 pt-2 border-t border-gray-200">
+                <span className="text-black font-bold">Total estimado</span>
+                <span className="text-black font-bold text-lg">{formatEuros(desglose.total)}</span>
+              </div>
+            </div>
+
+            {/* Rango */}
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-500">Rango orientativo</span>
+              <span className="text-black font-medium">
+                {formatEuros(desglose.rango.min)} – {formatEuros(desglose.rango.max)}
+              </span>
+            </div>
+
+            {/* Confianza */}
+            <div className="flex items-center gap-2 text-sm">
+              <span className="text-gray-500">Confianza del cálculo</span>
+              <span
+                className={`px-2 py-0.5 rounded-full text-xs font-semibold ${
+                  desglose.confianza === 'alta'
+                    ? 'bg-green-100 text-green-700'
+                    : desglose.confianza === 'media'
+                      ? 'bg-amber-100 text-amber-700'
+                      : 'bg-red-100 text-red-700'
+                }`}
+              >
+                {desglose.confianza}
+              </span>
+            </div>
+
+            {/* Avisos */}
+            {desglose.avisos.length > 0 && (
+              <ul className="text-xs text-amber-700 bg-amber-50 rounded-lg p-3 flex flex-col gap-1">
+                {desglose.avisos.map((aviso, i) => (
+                  <li key={i}>⚠ {aviso}</li>
+                ))}
+              </ul>
+            )}
+
+            {/* Disclaimer RF-B-09 */}
+            <p className="text-xs text-gray-400">
+              Presupuesto orientativo. El precio final puede variar según la visita técnica.
+            </p>
+          </div>
+        ) : (
+          <p className="text-sm text-gray-400">Aún no se ha calculado el presupuesto.</p>
+        )}
+      </Section>
     </div>
   );
 }
diff --git a/mvp/b2c/src/app/panel/actions.ts b/mvp/b2c/src/app/panel/actions.ts
index 35bac90..e0d8351 100644
--- a/mvp/b2c/src/app/panel/actions.ts
+++ b/mvp/b2c/src/app/panel/actions.ts
@@ -3,8 +3,11 @@
 import { and, eq } from 'drizzle-orm';
 import { revalidatePath } from 'next/cache';
 import { db } from '@/db';
-import { leads, leadEstadoHistory, precisionHistory, tenants } from '@/db/schema';
+import { leads, leadEstadoHistory, leadPipelineEventos, precisionHistory, tenants } from '@/db/schema';
 import { TENANT_SLUG } from '@/lib/funnel';
+import { getPricingConfig, getCatalog } from '@/db/pricing-queries';
+import { computeBudget } from '@/budget';
+import type { BudgetInputs } from '@/budget/types';
 
 async function getTenantId(): Promise<string> {
   const [tenant] = await db.select().from(tenants).where(eq(tenants.slug, TENANT_SLUG)).limit(1);
@@ -60,3 +63,45 @@ export async function marcarGanado(leadId: string, precioFinalEuros: number) {
   revalidatePath('/panel');
   revalidatePath(`/panel/${leadId}`);
 }
+
+export async function recalcularPresupuesto(leadId: string) {
+  const tenantId = await getTenantId();
+  const [lead] = await db
+    .select()
+    .from(leads)
+    .where(and(eq(leads.id, leadId), eq(leads.tenantId, tenantId)))
+    .limit(1);
+  if (!lead) throw new Error('Lead no encontrado.');
+
+  const [config, catalog] = await Promise.all([getPricingConfig(), getCatalog()]);
+
+  const inputs: BudgetInputs = {
+    tipoReforma: lead.tipoReforma ?? 'otro',
+    m2Suelo: lead.m2Suelo ?? null,
+    alturaTecho: lead.alturaTecho ?? null,
+    calidadGlobal: lead.calidadGlobal ?? 'media',
+    estructural: lead.estructural,
+    provincia: lead.provincia ?? null,
+    materialSelections: (lead.materialSelections as Record<string, string>) ?? {},
+  };
+
+  const result = computeBudget(inputs, config, catalog);
+
+  await db
+    .update(leads)
+    .set({
+      presupuestoEstimado: result.total,
+      desgloseSnapshot: { stage: lead.pipelineStage, result },
+      updatedAt: new Date(),
+    })
+    .where(eq(leads.id, leadId));
+
+  await db.insert(leadPipelineEventos).values({
+    leadId,
+    stage: 'presupuesto_generado',
+    metadata: { total: result.total, confianza: result.confianza },
+  });
+
+  revalidatePath('/panel');
+  revalidatePath(`/panel/${leadId}`);
+}