As part of the work of defining Helsinki use cases, several meetings were held with the city of Helsinki officials, alongside with three co-creation sessions. All co-creation workshops were organised online due to the existing situation with COVID-19 in fall 2021. Co-creation workshop 1 was organised with the older adults residing in Vuosaari. In total 5 participants took part in the workshop. During this workshop, the older citizens mentioned a series of challenges, needs, desires and opportunities. The most pressing needs in terms of street infrastructure were often related to maintenance of streets, pedestrian walkways and access points (e.g., bus stops and entrances). Maintenance of walkways, especially during the winter, was considered as one of the main challenges for accessibility and mobility. The older citizens mentioned the need of proper surfaces to walk on during wintertime when roads tend to be slippery. In addition to walkability, workshop participants desired for more street signs which would give an indication of walking distances between relevant places. In combination with the needs for proper and safe transportation, the older inhabitants of Vuosaari desire a clean and safe environment where they can autonomously move from place to place with a clear estimation of moving time. Co-creation workshop 2 was organised with the urban planners of the city of Helsinki. In total 4 participants took part in the workshop. In the workshop, civil servants from Helsinki mapped the existing initiatives, the challenges they are currently facing and finally the collaborations they consider relevant in addressing the needs of older people in the urban environment. Based on this workshop, there is a need for better and more accessible information regarding the needs of older citizens and issues they face in the urban environment to assist with better planning. Workshop participants also raised concerns about the lack of participation from older citizens in planning their city. Co-creation workshop 3 was organised with both the older adults and urban planners of the city of Helsinki. In total 10 participants (7 older adults and 3 city officials) participated in the workshop. Based on the efforts conducted in previous workshops, 2 challenges were presented. The first challenge focused on mobility in the winter season. Older adults indicated in previous sessions that daily mobility was impeded in winter, for example because of snow piles (partially) blocking pavements. The second challenge put the emphasis on comfort and safety in certain areas participants identified in previous sessions. Based on the discussion, possible elements that contribute to this are e.g., lighting conditions on certain routes or a sufficient amount of greenery and resting places.