Traveller's Tales has taken a 10-year lease on 1 Kings Close in Wilmslow, Cheshire.
The company, which is owned by Warner Bros, is currently based in Knutsford and will expand into the additional 11,000 sq ft office building.
Lambert Smith Hampton was the agent for the landlord, Petros, alongside JLL. CBRE represented the tenant.
Adam Jackson, associate director of office agency at LSH, said: "Securing a single occupier for this building has always remained our principle objective and it is pleasing to have achieved this.
"We are witnessing increased letting activity from the telecommunications, media and technology sector and the growth of Travellers Tales is a great success story for the region."