Contractors have erected fencing and have begun the first steps to finally putting a retail unit onto the Smithfield site in the town, which has sat derelict for years.
Morrisons have the land on a lease from Oswestry Town Council, and are building a new supermarket on top of already having a store in the centre of the town.
It already employs 100 people at its Station Road site, and the new store will add 60 more full and part time jobs.
The scheme was due to include a petrol station, but that was scrapped in October and plans were scaled back.
It receiving planning permission in December, with the supermarket having to adhere to certain conditions.
Planners said: “Development shall not begin until a scheme for decommissioning the former livestock market groundwater abstraction borehole has been submitted to and approved in writing by the local planning authority.
“The scheme shall be implemented as approved.”
That now seems to be completed and work has begun. It is not clear how long the construction will take.
Originally a supermarket was going to be joined by other outlets, including a cinema, restaurant and a McDonald's, however the plans fell through.
That left the land to sit unused for almost five years.