Rules
Squamish zoning and ADUs: start with your property
Published · Updated
Squamish's residential zoning framework provides for different types of housing, including accessory dwelling units. The useful answer for a homeowner starts with the specific property and the arrangement they want to build.
An ADU, a secondary suite, a duplex and a multi-unit development are different proposals. Do not assume that a housing option described for one zone or site is available on every residential lot.
Confirm the current zone
Use the property address to identify the current zone and the rules that apply. Squamish has several residential zones, including R-1 through R-5, with different permitted uses and conditions.
Then review what is already on the lot. The number and type of dwellings, existing floor area and other buildings can affect how an additional home is considered. A zoning change described in an older article should be checked against the current bylaw and map.
Distinguish an ADU from other housing forms
A detached backyard home is assessed under the applicable accessory dwelling unit provisions. A suite inside the main building follows a different arrangement. A proposal for several homes may involve a broader development and approval scope.
The choice should begin with the household's needs, the existing property and the relevant rules. Increasing the possible number of homes is not the only way to make a lot more useful.
Review the development envelope
The permitted use is one part of feasibility. Building area, lot coverage, floor area, height and setbacks also shape the available design. Separation from other buildings, trees and access can influence the siting.
For detached ADUs, the District's published information describes a maximum 90 m² gross floor area, with a separate allowance for an over-garage structure while retaining the 90 m² habitable ADU limit. The complete design still needs to meet the other applicable requirements.
A plan that fits within a size limit can still need adjustment when those requirements are considered together.
Bring hazards and services into the review
Mapped flood, debris-flow, environmental or other site conditions may affect development. Registered covenants and easements can also matter. These are reasons to investigate the actual lot before setting the design and budget.
Water, sewer, drainage and electrical capacity need their own review. An additional dwelling can require work beyond connecting a short length of pipe or cable to the main house.
Turn the zoning review into a project direction
The early goal is a useful explanation of the likely options, the constraints and the information needed next. A remote lot review can help identify those questions before you commit to a model or commission a full design.
Newlines can coordinate the subsequent design, consultant work, permit process and construction around the chosen scope. Start with the address and the kind of home or housing arrangement you want to explore.
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