Gareth Edwards will officially 'kick off' the event on Saturday 11th at 11am and a whole weekend of free family entertainment - themed around the Nolan panda mascot - will follow.
Activities will include cake decorating, face painting, games and puzzles for the youngsters, as well as Champagne and canapés for the adult guests.
For those looking to purchase from Nolan's extensive range of windows, doors and conservatories, there won't be a better time as some great discounts will be available for the duration of the weekend plus other attractions will include a free prize draw to win VIP rugby tickets, courtesy of the Cardiff Blues (Saturday) and a charity raffle in aid of the NSPCC, with prizes including tickets and a pre-show meal for the opening night of Mamma Mia at the Wales Millennium Centre.
Speaking about the opening weekend, company founder, Nolan Nicholas said:
"We're all thoroughly looking forward to the event and really will be offering a fun-packed family weekend - along with some fantastic discounts on our products"
"The new design studio is in a fantastic location with easy access and great parking facilities so it will be far easier for customers old and new to pay us a visit in Cardiff from now on.
"The opening coincides perfectly with our twentieth anniversary and this celebration is also a way to show our appreciation to both staff and customers for their support over the years.
"We'd like to invite anyone in the area on the weekend of 11th-12th September to come and mingle with some famous faces, take advantage of superb discounts and really, to see what we can offer to suit their individual needs."
The opening event will take place between 11am-4pm on Saturday 11th and Sunday 12th September at the Nolan Design Studio, 112 North Road, Cardiff CF14 3AB. For further information, please call 0845 600 90 80.