Change Geodirectory map popup layout for specific CPT.

function.php

<?php

/**
  * I am changing map popup layout of gd_places here. 
  */
add_filter('geodir_get_template_part', 'geodir_get_template_part_callback', 10, 3);
function geodir_get_template_part_callback( $template, $slug, $name ){
	global $gd_post;
	if( 'gd_place' === $gd_post->post_type ){
		?>
		<div class="gd-bubble" style="">
			<div class="gd-bubble-inside">
				<div class="geodir-bubble_desc">
					<div class="geodir-bubble_image">
						[gd_post_images type="image" link_to="none" ajax_load="0" show_logo="true" ]
					</div>
					<div class="geodir-bubble-meta-top">
					[gd_post_badge key="website" condition="is_not_empty" badge="%%city_name%%" link="%%input%%" bg_color="rgba(0,0,0,0)" txt_color="#000000"]
					[gd_post_title tag='h4']

					</div>
					<div class="geodir-bubble-meta-side">
					[gd_post_content key="post_content" limit="20"]
					</div>
				</div>
			</div>
		</div>
		<?php
		$template = false;
	} 
	return $template;
}