- Kangaroo Point to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kareela to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Katoomba to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kearns to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kellyville Ridge to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kellyville to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kemps Creek to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kensington to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kenthurst to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kentlyn to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Killara to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Killarney Heights to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Killarney Vale to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kings Langley to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kings Park to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kingsford to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kingsgrove to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kingswood to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kirkham to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kirrawee to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kirribilli to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kogarah Bay to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kogarah to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Ku-ring-gai Chase to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kurnell to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kyeemagh to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Kyle Bay to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Sydney Airport to Castlereagh Boutique Hotel, Ascend Hotel Collection Member
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kangaroo Point
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kareela
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Katoomba
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kearns
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kellyville Ridge
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kellyville
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kemps Creek
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kensington
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kenthurst
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kentlyn
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Killara
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Killarney Heights
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Killarney Vale
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kings Langley
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kings Park
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kingsford
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kingsgrove
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kingswood
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kirkham
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kirrawee
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kirribilli
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kogarah Bay
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kogarah
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Ku-ring-gai Chase
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kurnell
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kyeemagh
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Kyle Bay
- Castlereagh Boutique Hotel, Ascend Hotel Collection Member to Sydney Airport