What is the main function of signage in real estate marketing?

The primary function of signage in real estate marketing is to advertise properties for sale. Signage serves as a visual advertisement that effectively communicates the availability of a property to passersby, potential buyers, and the local community. It typically provides essential information such as the property's price, key features, and contact details for the real estate agent or broker. This immediate and recognizable way to promote a listing is crucial in attracting interest and generating leads for the property.

While other options might touch on aspects related to real estate—like facilitating open houses or providing information on zoning laws—those functions are secondary to the primary role of signage as a marketing tool designed to showcase properties and attract buyers. It is a direct method of reaching potential clients and generating interest in available listings, making this answer the correct choice in the context of real estate marketing.