AXA Insurance UK has instructed Lambert Smith Hampton to bring Brooke Lawrance House, its office in Ipswich, Suffolk, to the market.
Offers are sought over £15m, reflecting a net initial yield of 12.6%.
The 146,526 sq ft office block is fully let to four tenants: AXA, Gallagher, SmartestEnergy, and the Department for Levelling Up, Housing & Communities.