The architectural proposals for the Dryfe Road site will be available to view at a Christmas craft market in the town hall on Saturday.
They show an arts and crafts area, a versatile double height ‘white box’ where sports and social activities will be held, rentable hot desking spaces, meeting and technology rooms, one of which can double as a cinema.
There will also be eight residential flats for those with assisted living needs, to be created by Cunninghame Housing Association Ltd.
The Old School project (LOS) recently submitted the proposals to Dumfries and Galloway Council’s planning department and await their decision.
In the meantime, they are inviting townsfolk along this weekend to see their vision and enjoy some festive shopping.
The market will feature over 15 local crafters and producers from the local area offering unique gifts. There will also be soup and refreshments served and Lockerbie Old School committee members will be available to discuss plans and answer questions.
The charity was set up in 2013 to turn the old Dryfesdale School and former council offices into a vibrant community centre.
The full project will cost £4.6 million and there were celebrations recently when they were awarded £774,000 for the scheme from Dumfries and Galloway Council, on top of £250,000 pledged last month by the Holywood Trust.
The two grants, totalling over a million pounds, will go towards the capital costs of redeveloping the building.
Works are expected to start on site in the autumn of next year.
LOS chairwoman Jackie Moffat said: “We are so delighted to have been awarded such significant funding from the Holywood Trust and Dumfries and Galloway Council.
“The Holywood Trust continues to support our work, for which we are extremely grateful and the council funding shows that we are being recognised as an anchor organisation who is working hard to regenerate the town.”