Architect Dermot Bannon faces a tough challenge in meeting the design brief and budgetary restraints for the Zambra family who are building an extension in Castleknock.

Dermot is in Clontarf, with Denise and Ben who desperately want a second bathroom for their family home. However, their budget is limited.

Catherine Bennett and her youngest daughter Sarah Jane are keen to downsize from their huge 13-bedroom house in Mullingar. They're planning to move down the road, where they also own a 3-bed bungalow that's been uninhabited for the last nine years.

Dermot faces a unique challenge in Clane, Co. Kildare.

Dermot helps Senator Katherine Zappone and Dr. Ann Louise Gilligan, who share a former hunting lodge, built in the early 20th century in Brittas, West County Dublin.

Desperate for more space, a couple with two young daughters, who have long since outgrown their tiny cottage in Killawalla outside Westport, engage Dermot to help.