Appear Here, a UK-based marketplace for short-term retail space, has closed a $12m series B round that featured Simon Venture Group, the corporate venturing unit of real estate business Simon Property Group.

The round was led by Octopus Ventures and included Balderton Capital, MMC Ventures, Meyer Bergman and Playfair Capital. Rebecca Hunt, investment manager at Octopus Ventures, will join Appear Here’s board of directors.

Founded in 2013, Appear Here’s platform enables entrepreneurs to book temporary retail space for pop-up stores.…