The Cruz-Andan House, also known as the Pulilan Butterfly Haven to locals, is a popular tourist destination due to its unique attractions. It is located along San Francisco street, near Dr. Pacifico Cruz House. The heritage house is surrounded by ornamental plants, and is enclosed by an adobe perimeter wall with a metal gate. The wall is made of bricks and concrete, with columns made of adobe and bricks. The second floor is originally made of wood from bombarded Colegio San Juan de Letran building, while the sliding windows are built of Capiz shells and covered with slightly rusted metal grills. Some doors in the house have small holes on their upper part, which were once used for ventilation purposes.

The house has undergone several changes throughout its history. An azotea was added to the top floor, and additional features were incorporated, such as a clean kitchen, a dirty kitchen, a paved backyard porch, and an extra dining room. The former silong was repurposed to showcase a doll museum's dioramas, and two modern bedrooms with en suite bathrooms were also renovated on the ground floor. The exterior visual appearance of the house was maintained, while only the interior bedrooms were changed into modern style. The property's appeal was further enhanced by the inclusion of various landscapes and attractions, such as a resort and butterfly haven, to provide visitors with a visually stimulating experience.