This study examined the evaluation of cultural ecosystem services (CESs) and their impact on well-being in peri-urban areas, using a case study in Harku municipality, Estonia. CESs, encompassing intangible factors such as emotions and values, are crucial for well-being but challenging to assess. To address this, a pilot method was developed, involving a typology of natural environment types (NETs) and contact types (CTs), assessed by a panel of local experts. The results revealed that “spiritual, historic, and symbolic” gardens exhibited a strong positive connection to well-being. Blue and green spaces offering physical activities and aesthetics were also highly rated. Surprisingly, cemeteries scored higher than expected. Agreement among experts varied, with “parks + sporting” showing near-perfect consensus and weaker agreement found in “parks + food production”, “blue spaces + providing gathering places”, and “green landscape elements + education”, highlighting diverse expert perspectives in identifying suitable combinations of NETs and CTs. This study addresses research-to-practice gaps and methodological challenges in applying CESs within planning frameworks, providing valuable insights for managing and conserving services in peri-urban areas. By testing the proposed method, this research contributes to a better understanding of how CESs can be effectively integrated into planning processes, fostering sustainable well-being in peri-urbanised regions.