The firm has called in Mandate Communications as its first retained retail PR agency following a competitive pitch.
Mandate's corporate team will seek to increase the profile of Land Securities Retail among the broader business community, with a particular focus on its strong thought-leadership role within the sector.
Tulchan Communications remains Land Securities' retained financial comms agency.
The firm owns 26 shopping centres and 20 retail parks in the UK, including Lakeside Retail Park in Essex and the White Rose centre in Leeds.
Last month, the firm reported pre-tax profit of more than £1bn, but its rental values for shopping centres and shops fell 6.3 per cent.