A Surrey couple have accused an architect's office of negligence and launched legal action for damages of more than £150,000.
Robert and Karen Aird say architect Prime Meridian overcharged them by £3,000 for the construction of their new home in Peper Harow, Surrey.
The couple also say their home is not finished, and defects in what has been built are so serious the job should be restarted.
Confusion arose over the architect's responsibility to oversee construction once the home had been designed. The couple say if the firm had explained it did not have a duty to supervise construction, they would have renegotiated to ensure it did or would have looked elsewhere.
They also claim the architect failed to give advice regarding its agreement with contractor Luckings, and negotiated a contract without their consent.
Since construction began, the Airds have highlighted problems in doors, drainage, pipework, joinery, plasterwork, roofing and brickwork.