Trainer Tony McEvoy is closing his Sydney stable, opting to focus on his Victorian and South Australian operations.

Three years after purchasing Bylong Park at Hawkesbury and taking his racing footprint to New South Wales, McEvoy decided to close the property, which was re-named Kildalton Park to match his Angaston set-up.

The property had capacity to stable 48 horses.

McEvoy said his recent addition of boxes in Melbourne had been a factor in shutting his satellite stable in NSW.

"It has been a difficult decision but to ensure the best results for my owners, I have decided to close the Hawkesbury stables and relinquish the boxes at Randwick," McEvoy said in a statement.

"With the granting of boxes at Flemington last year, despite the quality of my staff, I have found myself really stretched to properly oversee the complete operation and this time has also been difficult for my family.

"I would like to thank everybody for their support during our time in New South Wales and I look forward to continuing the relationship with my clients as I concentrate my efforts on my Melbourne and Adelaide stables."