Best Laid Plans

Charlie joins Kent couple, Sam and Adam who face a race against time to resolve key style and layout disagreements and finish their luxury two-storey extension and renovation before the birth of their third child. Meanwhile in Hertfordshire, Sophie helps Sarah and Adam to find common ground between competing visions about the design of their new high-end kitchen/diner extension.

Charlie works with Buckinghamshire couple, Jan and Neil who face the difficult task of marrying up their 400-year-old thatched cottage with a stunning, contemporary, three arched extension and agreeing on differences of opinion about how the rooms are used and key finishing touches. In Hertfordshire, Sophie has to help first time renovators, Hazel and Lawrence find compromises.

In Buckinghamshire, Charlie helps Leena and David get to grips with the issues and dilemmas of their large two-storey extension, whilst living apart throughout most of their build. Sophie heads to Surrey where mother and daughter Claire and Liz are embarking on the transformation of a beautiful but dilapidated 18th century property as an investment for all the family.

In East Sussex, Jo and Neil have the ambitious task of totally refurbishing and extending their period property to make it fit for the 21st century and Charlie is helping them resolve key issues over layout and kitchen style. Sophie joins Essex couple Joe and Eva who face the challenge of living in a caravan with their kids throughout the build, whilst also trying to find common ground.

Charlie is in South London with Architect Supriya and Operations Manager Siddhartha who have the tricky task of extending their home, whilst also managing the twin relationships of husband and wife and architect/client. Sophie heads to Hertfordshire to join a couple who face a race against time to extend their charming end of terrace cottage before they tie the knot.

Charlie travels to the south coast, to help East Sussex couple Jen and Ian who haven't been able to reach an agreement on lighting or kitchen designs. In Cambridgeshire, Sophie helps Frankie and Nick who must resolve issues over their internal layout and external look as they give their 1960s home a facelift both inside and out, to make it the extraordinary family home they've always wanted.