Bob the Builder and Hit Entertainment took over London's O2 Live Quarter at the weekend to host Bob's Big Build.
2,500 fans attended the event, which was hugely oversubscribed with nearly 16,000 people previously registering in a ballot for free tickets.
Guests were greeted by Bob and Wendy and presented with hard hats before embarking on a tour of the character's world through ten special activity zones.
The new toy range from Character Options was on display, while families were also given the chance to see an advance screening of the new DVD special, The Big Dino Dig, which is due for launch on September 19th.
Children also took part in challenges and activities including a scooter track test, wall building, face painting and a live Bob the Builder performance.
"We're delighted that Bob's Big Build has proved such a massive hit with consumers and that the brand continues to have a huge following," said Jules Heaton, VP global brand management, Hit Entertainment. "Bob's Big Build was a fantastic opportunity for families to engage with the brand and enjoy all the new and exciting Bob activity that has recently launched.
"One of Hit's most popular brands, now broadcast in CGI, Bob the Builder is going from strength to strength and certainly has a bright future ahead."