Omni's headquarters address in Knightsbridge, London, remains the same.
The new operations centre houses Omni's core sales and underwriting functions, and incorporates capacity for expansion.
Colin Sanders, Omni's chief executive officer, said: "Our new premises provide modern, convenient facilities in a highly accessible location.
"By retaining our central London base, we are ideally positioned for future business."
The move follows the lender ending its relationship with London-based Mortgage Centre IFA in June and the arrival of a new management team including Sanders and ex-Money Partners PR boss Bob Sturges.
