City of Ottawa / Archives City of Ottawa / General Heritage Information City of Ottawa / Heritage Conservation City of Ottawa / Heritage Conservation Districts (Map) City of Ottawa / Heritage Grant Program for Building Restoration City of Ottawa / Heritage Program City of Ottawa / Interactive Zoning Map + Historical Aerials City of Ottawa / Museums & Historic Sites City of Ottawa / Official Plan Council of Heritage Organizations in Ottawa (CHOO/COPO) Glebe Community Association Gloucester Historical Society Hintonburg Community Association Lindenlea Community Association Lowertown Community Association (LCA) Old Ottawa South Community Association Ottawa Architects 150 / Every Building Has An Architect Ottawa Regional Society of Architects Ottawa South History Project Rockcliffe Park Residents Association Sandy Hill / Action Sandy Hill