Mr Davies, 29, and Jesse Baird, 26, died on February 19 at a terrace house in the inner eastern Sydney suburb of Paddington.
Mr Davies previously lived in the Brisbane suburb of New Farm and a memorial service will be held on Saturday in the local park before a reception at the nearby Powerhouse.
At this year's Sydney Mardi Gras, Qantas paid tribute to Mr Davies by featuring his name on the nose cone of a plane in a parade of floats and marchers up Oxford Street in Darlinghurst.
A Qantas float paid tribute to Luke Davies during the Sydney Gay and Lesbian Mardi Gras Parade. (Steven Saphore/AAP PHOTOS)
A GoFundMe to help Mr Davies' family has received more than $75,000 in donations.
His mother Sandra Davies recently thanked everyone, saying Luke was the "kindest soul".
"Wow an unbelievable $75,000 donated to our beloved, and most beautiful, kindest soul Luke," she wrote in a post on the page.
"It is with a grateful heart we thank you all sincerely although these words just don't seem enough for the overwhelming love and generosity both Luke and Jesse have received these past few weeks."
Mr Baird was farewelled by his family, industry colleagues and friends at a funeral in Melbourne in March, when mourners donned bright colours in his honour.
NSW police officer Beau Lamarre-Condon, 29, is accused of shooting the men with his service weapon while off-duty on February 19.
He has been charged with two counts of murder.
The men's bodies were found inside surfboard bags at a rural property in Bungonia, near Goulburn, about 200km southwest of Sydney on February 27.
Lamarre-Condon was sacked from the NSW Police force in March.
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