horncastle:thomas is a RIBA Chartered Practice formed in February 2011 in Douglas in the Isle of Man by Karen Horncastle + Martyn Thomas

Both RIBA Chartered Architects: Karen has worked in the Isle of Man for twenty years; Martyn worked for two leading architectural practices in North West England before returning home in August 2010

Both have experience working on a variety of existing and new building types, including listed and registered buildings and new buildings in conservation areas