The national construction union and two of its officials have been fined $50,500 for stopping work at a $30 million apartment project in Melbourne over demands for an extra toilet and a larger shed.

The penalty judgment is the eighth this year imposed on the Construction, Forestry, Maritime, Mining and Energy Union in Victoria for its industrial tactics on building sites. The latest fine takes the total penalties it has been ordered to pay this year to more than $500,000.

The CFMMEU and its officials have been fined for stopping work over demands for an extra toilet and bigger site shed. Credit:Luis Enrique Ascui

The fines are for an incident in April, 2015, when CFMMEU officials Stephen Long and Gerard Benstead organised for eight workers to walk off the job after complaining that amenities on the Bay Street building site in Brighton were not up to standard.

The Federal Court of Australia heard that Mr Benstead had demanded a bigger shed for 16 workers and a dedicated toilet for one female worker. The site supervisor had said the existing shed was big enough because it catered for 18 people.