Supermarket bosses have reassured residents an historic facade will be kept as part of their new store.
Demolition to make way for the new Aldi supermarket at Oxford Square, Marton, is almost complete.
But the pace of change has prompted concerns about the retention of a historic facade.
Planning permission for the Aldi includes a condition that the ground floor facade of the former Thomas Motors building is retained.
It will be moved forward as part of the new development.
A spokesman for Blackpool Council’s planning department said: “The planning permission states the facade will be dismantled and moved forward and retained as part of the new development.
“This remains a condition of the planning approval and we are not aware that it is not being done.”
The scheme was approved by the council’s planning committee in May last year.
The facade is included in the council’s local listings of historic buildings because it was part of the original Thomas Motors car showroom on the site.
It will be repositioned further forward to create 92 square metres of additional floorspace.
Plans for the 1,647 sq metre store at Oxford Square involve the creation of a new access on Park Road to create 101 parking spaces and 10 bicycle spaces.
The Aldi is expected to create around 35 new jobs.
A spokesman for Aldi said: “Aldi is in the process of developing a new store at Oxford Square, Blackpool.
“We are aware of the sensitivity of the demolition of some of the buildings in this area, and that there is a historic façade of local interest. We are respecting and restoring this piece of history during our development.”