The principle of energy solidarity imagined by Eiffage and investigated by the Phosphore research programme is to use the calories produced by office buildings to heat housing units—and vice versa.

The seawater heat-exchange system, implemented by EDF, means that living spaces can be heated and cooled down using thermal exchange with the sea, leading to energy savings of 30%.

In its organisation of traffic flows, Smartseille gives preference to pedestrians and cyclists.

Inhabitants have access to shared electric cars and bikes.

A joint car parking concept enables office workers to park their cars during the day and residents to park theirs at night.

The future metro and tramlines are situated close by.

Concierge assistance provides handy daily services like dry cleaning, postal services, ticketing, pick-up point and mobile services such as hairdressing, beauty treatments, massage.  

It also covers co-working facilities, shared mobility and joint car parking, alongside social activities like neighbour get-together sessions, gardening workshops, energy saving advice and tips, etc.

The spare room situated between adjacent units enables families to scale their housing in relation to their needs, which may change over time with a new baby, child leaving home, distance working, professional mobility, the need to care for senior family members, etc.

A high-speed internet service, installed by Orange, is available to the whole neighbourhood, making it easy for inhabitants to access on-line services like e-concierge, energy tips, neighbour networks, security and home automation systems.