Concept and design
Are Coach Houses Allowed in Ottawa? Rules & 2026 Zoning Changes Explained
...backyard space.
The four-unit ceiling: The new framework allows up to four total residential units on a single N1 or N2 lot. This can include a primary residence, an interior basement apartment, and one detached accessory backyard structure.
The 40 % footprint rule and maximum size limits
Determining the permissible ...
