Designated buildings, structures and cultural heritage landscapes are protected by a heritage designation bylaw under the Ontario Heritage Act, or have been deemed to have Provincial significance.
The designated heritage properties map is temporarily unavailable and will be updated soon.
- 1 Carden Street
- 1 Quebec Street and 99-101 Norfolk Street
- 1-7 Douglas Street
- 108 Water Street
- 109 Surrey Street East
- 11-13 Wyndham Street North
- 116 Gordon Street
- 12 Mont Street
- 12 Wyndham Street North
- 127-131 Wyndham Street North
- 13 Evergreen Drive
- 133 Wyndham Street North
- 134 Dublin Street North
- 135 Wyndham Street North
- 138 Wyndham Street North
- 1453 Gordon Street
- 146 Waterloo Avenue
- 147-159 Wyndham Street North
- 15 Douglas Street
- 15 Oxford Street
- 15 Wyndham Street North
- 151 Waterloo Avenue
- 157 Ontario Street
- 16 Arthur Street North
- 16 Edwin Street
- 16 Oxford Street
- 20-26 Stuart Street
- 204 College Avenue West
- 21 Nottingham Street
- 21 Oxford Street
- 22-26 Oxford Street
- 221 Woolwich Street
- 24 Cambridge Street
- 25 Manor Park Crescent
- 25 Mitchell Street
- 25-27 Douglas Street
- 258 Woolwich Street
- 264 Woolwich Street
- 268-270 Woolwich Street
- 27 Barber Avenue
- 280 Palmer Street
- 29 Waterworks Place
- 32 Gordon Street
- 32 Liverpool Street
- 340 Woolwich Street
- 341 Forestell Road
- 344 Woolwich Street
- 348 Woolwich Street
- 358 Waterloo Avenue
- 366 College Avenue West
- 40 Albert Street
- 40 Spring Street
- 414 Eramosa Road
- 45 Cross Street and 26 Ontario Street
- 49 Albert Street
- 52 Macdonell Street
- 57-59 Cork Street West
- 59 Carden Street
- 6 Dublin Street South
- 60 Cardigan Street
- 60 Manitoba Street
- 611 Silvercreek Parkway North
- 646 Paisley Road
- 65 Wyndham Street North
- 66 Paisley Street
- 67-71 Wyndham Street North
- 7 Waterloo Avenue
- 74 Arthur Street North
- 74 Paisley Street
- 74 Woolwich Street
- 74 Woolwich Street
- 74-76 Liverpool Street
- 79 Carden Street
- 8 Glenhill Place
- 80 London Road West
- 81 Farquhar Street
- 83 Essex Street
- 83 King Street
- 83 Paisley Street
- 86 Glasgow Street North
- 87 Liverpool Street
- 9 Douglas Street
- 93-95 Nottingham Street
- 96-98 Water Street
- 99 London Road West
- Arboretum Road, University of Guelph, Alumni Centre
- Goldie Mill Park and ruins
- Gow’s Bridge
- Heffernan Street Footbridge
- I.O.D.E. Fountain
- Massey Hall – University of Guelph
- Norwich Street Bridge
- President’s House, University of Guelph
- Priory Square
- Stone Road East Bow Truss Bridge