Sightlines Development Group Inc. » Member Directory Go back to directory. Add to Address Book. Sightlines Development Group Inc. Sightlines Development Group Inc. BHBA Rep: Steve Double Address 17-218 Silvercreek Parkway N, Suite 241 GUELPH ON N1H 8E8 work Work Phone: 519-884-0170work Cell Phone: 519-760-3055cell Work Email: info@sdgroups.caINTERNET Website: http://www.sdgroups.ca