T1 was designed by Italian architect Antonio Lavieri and was built by Merko Ehitus Eesti AS.

[2] T1 has shopping area of 55,000 square metres (590,000 sq ft) and consists of over 200 stores.

[2] AS Tallinna Moekombinaat, the owner of the shopping center, soon experienced financial difficulties, and in 2020 the company went into reorganization.

[3] On June 2, 2021, AS Tallinna Moekombinaat went bankrupt by the decision of the Harju County Court, and AS Pro Kapital Grupp lost control over the subsidiary.

[4] On June 28, 2021, the bankruptcy trustee put the T1 shopping center up for auction with a starting price of 85 million euros.