On Sunday, what police described as an "improvised explosive device" was found at a vacant section on the opposite side, in a search sparked by the finding of a live hand-grenade wrapped in plastic when a man was clearing ivy from the section earlier in the day.
He took it to the Hastings Police Station, which was then evacuated and shut down for several hours before the bomb squad arrived from outside the region and disarmed the explosive.
The squad and a specialist search group then switched attention to the Albert St property where the grenade had been found, a vacant former Hastings House Removals site, with a large shed and signage at the front.
It was on Sunday afternoon that police found the second item, which Mr Greville said was 15-20cm long and had no detonator. "The device would not have blown up on its own," he said. "Nevertheless, we have taken every precaution with it, as it had been constructed to explode."
Both items have been taken for forensic testing. There was nothing to indicate where they had come from, nor how they had come to be on the properties. It appeared they had been there for a considerable time, Mr Greville said.
Residents said the property where the grenade was found appeared to have been unused for several years. They also said there had been no noticeable problems around the Highway 61 clubhouse for some years. One resident said there did not appear to have been a lot of activity at the club in recent times, but there had been times when things were thrown at the premises from the road or people going on to the neighbouring properties.
Mr Greville said police had not searched the club property. It has high green corrugated iron boundary fences, an intercom-monitored gate, and street and entrance surveillance cameras.
Police said the man who found the grenade was declining requests for media interviews.