diff --git a/schemas/01-construction-schema-ddl.sql b/schemas/01-construction-schema-ddl.sql
index 470ebf9..510ffa9 100644
--- a/schemas/01-construction-schema-ddl.sql
+++ b/schemas/01-construction-schema-ddl.sql
@@ -552,6 +552,89 @@ CREATE TABLE IF NOT EXISTS construction.tickets_postventa (
     CONSTRAINT uq_tickets_number_tenant UNIQUE (tenant_id, ticket_number)
 );
 
+-- Tabla: no_conformidades (no conformidades detectadas)
+CREATE TABLE IF NOT EXISTS construction.no_conformidades (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    inspeccion_id UUID REFERENCES construction.inspecciones(id),
+    lote_id UUID REFERENCES construction.lotes(id),
+    nc_number VARCHAR(50) NOT NULL,
+    detection_date DATE NOT NULL,
+    category VARCHAR(100),
+    severity VARCHAR(20) NOT NULL DEFAULT 'minor',
+    description TEXT NOT NULL,
+    root_cause TEXT,
+    photo_url VARCHAR(500),
+    contractor_id UUID REFERENCES construction.subcontratistas(id),
+    status VARCHAR(20) NOT NULL DEFAULT 'open',
+    due_date DATE,
+    closed_at TIMESTAMPTZ,
+    closed_by UUID REFERENCES auth.users(id),
+    verified_at TIMESTAMPTZ,
+    verified_by UUID REFERENCES auth.users(id),
+    closure_photo_url VARCHAR(500),
+    closure_notes TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    created_by UUID REFERENCES auth.users(id),
+    updated_at TIMESTAMPTZ,
+    updated_by UUID REFERENCES auth.users(id),
+    CONSTRAINT uq_nc_number_tenant UNIQUE (tenant_id, nc_number),
+    CONSTRAINT chk_nc_severity CHECK (severity IN ('minor', 'major', 'critical')),
+    CONSTRAINT chk_nc_status CHECK (status IN ('open', 'in_progress', 'closed', 'verified'))
+);
+
+-- Tabla: acciones_correctivas (CAPA)
+CREATE TABLE IF NOT EXISTS construction.acciones_correctivas (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    no_conformidad_id UUID NOT NULL REFERENCES construction.no_conformidades(id) ON DELETE CASCADE,
+    action_type VARCHAR(20) NOT NULL DEFAULT 'corrective',
+    description TEXT NOT NULL,
+    responsible_id UUID NOT NULL REFERENCES auth.users(id),
+    due_date DATE NOT NULL,
+    status VARCHAR(20) NOT NULL DEFAULT 'pending',
+    completed_at TIMESTAMPTZ,
+    completion_notes TEXT,
+    verified_at TIMESTAMPTZ,
+    verified_by UUID REFERENCES auth.users(id),
+    effectiveness_verified BOOLEAN DEFAULT FALSE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    created_by UUID REFERENCES auth.users(id),
+    updated_at TIMESTAMPTZ,
+    updated_by UUID REFERENCES auth.users(id),
+    CONSTRAINT chk_action_type CHECK (action_type IN ('corrective', 'preventive', 'improvement')),
+    CONSTRAINT chk_action_status CHECK (status IN ('pending', 'in_progress', 'completed', 'verified'))
+);
+
+-- Tabla: ticket_asignaciones (asignaciones de tickets a técnicos)
+CREATE TABLE IF NOT EXISTS construction.ticket_asignaciones (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    ticket_id UUID NOT NULL REFERENCES construction.tickets_postventa(id) ON DELETE CASCADE,
+    technician_id UUID NOT NULL REFERENCES auth.users(id),
+    assigned_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    assigned_by UUID NOT NULL REFERENCES auth.users(id),
+    status VARCHAR(20) NOT NULL DEFAULT 'assigned',
+    accepted_at TIMESTAMPTZ,
+    scheduled_date DATE,
+    scheduled_time TIME,
+    completed_at TIMESTAMPTZ,
+    work_notes TEXT,
+    reassignment_reason TEXT,
+    is_current BOOLEAN NOT NULL DEFAULT TRUE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ,
+    CONSTRAINT chk_assignment_status CHECK (status IN ('assigned', 'accepted', 'in_progress', 'completed', 'reassigned'))
+);
+
+-- Indices adicionales para calidad
+CREATE INDEX IF NOT EXISTS idx_no_conformidades_tenant ON construction.no_conformidades(tenant_id);
+CREATE INDEX IF NOT EXISTS idx_no_conformidades_status ON construction.no_conformidades(status);
+CREATE INDEX IF NOT EXISTS idx_no_conformidades_inspeccion ON construction.no_conformidades(inspeccion_id);
+CREATE INDEX IF NOT EXISTS idx_acciones_correctivas_nc ON construction.acciones_correctivas(no_conformidad_id);
+CREATE INDEX IF NOT EXISTS idx_ticket_asignaciones_ticket ON construction.ticket_asignaciones(ticket_id);
+CREATE INDEX IF NOT EXISTS idx_ticket_asignaciones_technician ON construction.ticket_asignaciones(technician_id);
+
 -- ============================================================================
 -- TABLES - CONTRATOS Y SUBCONTRATOS (MAI-012)
 -- ============================================================================