Town groups and council chiefs were among the guests as Swaffham celebrated the 10th anniversary of the opening of its community centre.
The building on the Campingland was opened in 2005 as part of a regeneration project led by officials from the Iceni Partnership.
More than 60 guests, including representatives of the town, Breckland district and Norfolk county councils who added to a European cash grant to build the centre, were at the celebration event on Friday night.
And they heard how the building has become a vital hub for many community groups, of which more than 70 now use it.
Officials estimate that, between them, those groups have attracted more than 100,000 people into the centre each year, around 2,000 a week.
The building is also a permanent home to eight organisations, including a nursery and a cafe, and hosts 13 drop-in services, including Citizens’ Advice and the town’s community police.
Centre chairman Dennis Tallon said: “I was extremely pleased to see so many people who were involved at the start of the community centre.
“Without their involvement, the centre would not be the success it is today.”