Real estate prices in Quillan are influenced by several key factors, including location, property condition, and local amenities. The town's proximity to the natural beauty of the Pyrenees attracts buyers looking for vacation homes or retirement properties, boosting demand and thus prices. Specific neighborhoods closer to the center, such as those near the historic Château de Quillan, tend to have higher values due to their charm and accessibility to shops and restaurants. The condition of the properties also plays a critical role; well-maintained homes with modern updates command higher prices compared to older, less maintained ones. Local amenities, such as schools, healthcare facilities, and recreational activities, contribute significantly, as families or retirees often prioritize these factors in their purchasing decisions. Additionally, the influence of the surrounding economy, including job opportunities in nearby cities and tourism, can shift market dynamics, impacting overall pricing in the area.