William Smart-designed Regent Street, Paddington terrace sale

The Regent Residence, designed by local architect William Smart, has been sold at an undisclosed price.

The Agency's Ben Collier and Daniel Adcocks had it listed at $6.5 million for its October auction.

It was listed by the upsizing lawyer power couple Grant Marjoribanks, partner at Herbert Smith Freehills, and his wife, Maurice Blackburn's Rebecca Gilsenan.

They paid $2.34 million in 2008 for what was a three bedroom 1890s terrace.

The Regent Street home renovation had light brought in to the characteristcally dark front rooms.

He increased ceilings heights, and added a skylight which spans the length of the kitchen.

The rear came with a new combined living space flowing directly on to the garden with an integrated barbecue and a day bed.

The plans took three years to get through council and two years to build, Domain noted before being completed in mid-2016.