1 Using a professional contractor, the average bocce ball court will cost anywhere from $15,000 to more than $50,000. 2  The costs will depend on the contractor, the location of the court, type of court, the geographical location and complexity of the job. Some players use of half courts because of space restrictions. 2  The cost of installing a bocce ball court will vary depending on the size and setting. 3  The average court is 12-by-60 feet. 4  It can be built with pressure treated wood faced and capped with “pau-lope”’ wood.