With two transformations on one site, builder Dylan tries to retrofit a draughty cottage into a fully sustainable home while landscape architect Tylah's plans for a garden oasis are battered with financial constraints.

In two challenging transformations, a Melbourne couple turn a drab duplex into a spacious Miami-inspired home, while a NSW couple on a shoe-string budget create a tiny guest pavilion for visiting family and friends.

In Geelong Victoria, Luke and Bree restore a Victorian cottage and add on a massive contemporary extension, while in the historic Tasmanian village of Oatlands, Karen and Luke restore a sandstone Georgian cottage.

A little Melbourne workers' cottage gets a radical re-imagining as a Mid Century Palm Springs oasis, while across town a backyard shed is transformed into a Japanese bathhouse.

A dilapidated 1960's duplex in the Blue Mountains gets a Moroccan makeover, while in Sydney can a giant boulder the size of a backyard be transformed into a rock top, poolside paradise?

On the Mornington Peninsula an overgrown sloping bush block is transformed into a family retreat designed to embrace its natural surrounds, while a heritage-listed mid-century classic home in Sydney gets a modern upgrade.

In two inspiring transformations, a couple turns a simple pavilion house on Sydney's northern beaches into a stylish pad filled with bespoke marble furniture and, in Melbourne, a family creates a flamboyant forever bathroom.

In Adelaide's Henley Beach, Paul and Marie transform an electricity converter station into a high-end entertainer's home, while on the Gold Coast, Chris and Antoinette reimagine a run-down house into a coastal retreat.