Since I'm not from Helsingborg or a supporter of HIF, isn't this really my cup of tea to improve, although I wood if I had sufficient knowledge and sources, but I haven't. Olympia is however, to my knowledge, the fourth sports ground ever built in Sweden. (After some venue in Malmö, Lund and Banan in Landskrona. Hence must Olympia be the oldest one which still is meant for Allsvenskan. I believe the wooden seater stand (demolished in 1992 ?) was built for the 1958 World Cup, and replaced a smaller one. The old Stattena wood & steel terrace was huge. Major reconstructions in 1985, 1992, 2001 and lately. There is really a lot of history to be written !
Here is an example - not perfect, but currently far ahead from this tiny article. Please see Landskrona IP for inspiration. Boeing720 (talk) 23:39, 12 May 2017 (UTC