<div class="container">
    <section class="row">
        <?
        $i = 0;
        foreach ($listado as $l) {
            echo $this->element('Frontend/Inmuebles/listado-grid', array('inmueble' => $l, 'divClass' => 'col-sm-3'));
            $i++;
            if ($i != count($listado)) {
                echo ($i % 4 == 0) ? '<div class="clearfix visible-sm-block visible-md-block visible-lg-block"></div>' : '';
            }
        }
        ?>
    </section>
</div>