An Overview of the Building Code Requirements for Converting a Single Dwelling Unit to a Duplex (2 dwelling units)

1. Welcome

20. Pre-Bench Footing

21. Pre-Bench Footing

22. Bench-Type Underpinning Bench-type underpinning

23. Existing Foundation Wall Underpinning beneath the existing foundation wall

24. Case Study Front Elevation Site Plan The Facts of the Case Municipality: City of Toronto Building Type: Semi-detached dwelling Proposal: Create a second dwelling unit Building Code: Compliance Alternative C134, Option B Developer: Oro Properties

26. Existing Basement Floor Single Dwelling Unit

27. Existing First Floor Single Dwelling Unit

28. Existing Second Floor Single Dwelling Unit

29. Proposed Basement Floor Existing living room changed to a bedroom for the creation of the dwelling unit that occupies the first and basement floor levels New window required for natural light provisions and emergency escape Other issue: Basement Height, minimum room height of not less than 1950 mm over the required floor area and in any location that would normally be used as a means of egress

30. Proposed First Floor Create a 30 minute Fire Separation for the Means of Egress from the dwelling unit on the second floor

31. Proposed Second Floor New Dwelling Unit The construction of the kitchen has created the new second dwelling unit in this building Locating the new kitchen close to the existing bathroom will take advantage of existing drains and vents for the kitchen sink and dishwasher.

32. Case Study – Results Municipality: City of Toronto Building Type: Semi-detached dwelling Result: Duplex Developer: Oro Properties New Dwelling Unit Existing Dwelling Unit Second level First level Basement level