AmbienNet project aims to demonstrate the viability of navigation systems to assist users with and without disabilities supported by intelligent environments. In particular, people with sensorial, physical or cognitive disabilities can be highly benefited by the intelligent environments, whenever these satisfy their accessibility requirements. For that, diverse heterogeneous technologies at different levels (network, hardware and middleware) have been developed by AmbienNet, making them interact to each other. Specifically, AmbienNet has developed a multi-cell indoors people localization system, a network of sensors and intelligent wheelchairs (acting like autonomous mobile platforms). The resources management depends on a middleware layer that recognizes high-level dynamic contexts (network scope independent) and provide continuity and high availability. On these elements, a new “context and location services level” is being developed in order to process the data provided by the sensors and the localization system. This level will allow providing abstract information to the services offered by the intelligent environments. As a demonstration, a navigation application to support intelligent wheelchairs for users with disabilities is being developed. In addition we plan to develop a handheld guide application for users without disabilities.