Rest Easy Group sealed the deal for the brand, which ceased trading on 1 August alongside Super Break, following the collapse of parent company Malvern Group.
LateRooms was later purchased by Secret Escapes on 1 October.
Rest Easy said LateRooms would be added to its roster of travel websites including Snaptrip and Last Minute Cottages.
In September 2019 the group also purchased iknow-uk.com in a six-figure deal to expand its share of the holiday lettings market in the UK and Europe.
Secret Escapes had operated LateLuxury.com in partnership with LateRooms.
Following the deal with Snaptrip, the Laterooms.com domain name and digital assets will transfer from Secret Escapes to Snaptrip.
Matt Fox, Snaptrip chief executive, said the LateRooms brand offered "a wonderful opportunity" for Rest Easy, with the group planning to “breathe new life" into what he believed to be "once one of the biggest and most relevant websites in UK travel".
“Restoring LateRooms as a reputable last-minute hotel booking platform will fit perfectly in our portfolio alongside our holiday rental marketplaces Snaptrip and Last Minute Cottages and will enable us to offer customers of all of our brands a wider variety of accommodation,” Fox added.