Hobsons Bay Crime Investigation Unit detectives have charged a man after an alleged suspicious fire in Williamstown last week.
It is alleged the man lit a pile of rubbish on fire at a tennis club on Melbourne Road about 2.50am on 24 January.
Investigators believe the fire spread to nearby grass, before spreading to a portable structure and causing considerable damage.
There were no injuries.
After detectives executed a search warrant at a Williamstown property, a 41-year-old Williamstown man was charged with criminal damage by fire (arson) and committing an indictable offence on bail.
He will appear at court today.
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