The Durham Region Home Builders Association! November 9, 2011 · by The Mortgage Doctors | in Bad Credit Solutions | tagged DRHBA, DRHBA blog, DRHBA.com, Durham Region Home Builders Association, low rate mortgages, Mortgage Intelligence Oshawa, Oshawa Mortgage Brokers, Renomark, Renovation financing | Leave a comment The Durham Region Home Builders are a group of professional builders and trades that create the communities that the residents of Durham Region call home. Renomark is associated with DRHBA and now Mortgage Intelligence will be a member.