https://guidelines.vancouver.ca/H004.pdf
4.3 Private Open Space
4.3.1 Objective: Ensure that each household has a private outdoor open space adjacent to its unit for its exclusive use.
4.3.2 Criteria: Each family unit should have a private open space which is a minimum of 1.8 m deep by 2.7 m wide.
The private open space should be designed to maximize sunlight access, safety, adaptability for a variety of family activities.
4.3.3 Discussion: The private open space should be able to accommodate a range of activities including sitting out, tending plants, barbecuing, outdoor eating, quiet children's play, and minor household maintenance. Provision of storage for this equipment is desirable.
Use of and satisfaction with private open space is dependent on its size, orientation, availability of sunlight, ease of access from the unit, ease of supervision, privacy, and safety.
Special design consideration should be given to the private outdoor areas of north facing units to maximize exposure to sunlight. Avoid recessed north facing private outdoor areas