Neil Ramsay, of Ramsay Architects, was found guilty of unacceptable professional conduct and fined £1,000 for failing to pay his Professional Indemnity Insurance (PII) and for not responding to correspondence from the ARB.
The two convictions follow the 12-month suspension of Ingrid Morris last week. She was suspended from the register for failing to carry PII, as well as being convicted of a criminal offence.
Morris was convicted at Horseferry Road Magistrates' Court in February 2006 for breaching sections seven and nine of the Planning Act 1990. The ARB found her guilty of unacceptable professional conduct.