Basement means any area of the building having its floor subgrade (below ground level) on all sides.
Underground tank means a device meeting the definition of tank whose entire surface area is totally below the surface of and covered by the ground.
Combined sewer overflow means the discharge of untreated or
Balcony means a cantilevered deck that projects from a wall of a building and which, except for a railing, is not enclosed; (Bylaw 5609)
Built-Up Area and/or “Covered Area” in relation to a Flat shall mean the floor area of that Flat including the area of balconies and terraces, if any attached thereto, and also the thickness of the walls (external or internal) and the columns and pillars therein Provided That if any wall, column or pillar be common between two Flats, then one-half of the area under such wall column or pillar shall be included in the built-up area of each such Flat.
Bulkhead means an airtight structure separating the working chamber from free air or from another chamber under a lower pressure than the working pressure;
Drainage means the movement of water to a place of disposal, whether by way of the natural characteristics of the ground surface or by artificial means;
drainage work means any watercourse and includes any land which is expected to provide flood storage capacity for any watercourse and any bank, wall, embankment or other structure, or any appliance, constructed or used for land drainage or flood defence;