Most of the residential zones allow for secondary suites in houses built before 1970, but NOT constructed after that date.

The R1-G (Gonzales) zone allows for s.s. however the age and parking requirements have been relaxed.  http://www.victoria.ca/cityhall/departments_plnsrv_zonbyl.shtml

Secondary Suite Regulations: http://www.victoria.ca/cityhall/pdfs/zoning-regulations-schedule-j.pdf

The City of Victoria was one of the first cities in BC to permit conversion of houses in suites, e.g. Rockland. Currently secondary suites are permitted in pre-1970 houses, provided they can meet building code and zoning requirements with respect to exterior changes and parking. The City has over 3,400 legal suites of various types in houses, approximately 10% of its housing stock. A suite in the City of Victoria can be up to 90m2 (968 sq.ft.) or 40% of the house floor area. A s.s. is a rental suite and cannot be strata-titled. Areas where s.s. have special provisions in the building code include: ceiling height, fire separation, and sound control.)

Secondary Suite Bylaw amendment http://www.esquimalt.ca/files/PDF/Bylaws/Zoning_Bylaw_No._2708_Secondary_Suites_adopted_Oct_19_2009.pdf

Currently under debate and study but not allowed under bylaws: www.oakbaybc.org/bylaws/3531.pdf

Allowed south of Mackenzie Avenue:  http://www.saanich.ca/business/zoningbylaw.html

Secondary Suite Permit Process: http://www.saanich.ca/living/community/suite.html

Duplex Bylaw: http://www.saanich.ca/business/duplex.html

Permitted within R-1: One family residential (large lot), R-1A: One family residential, R-1B: One family residential, A-1: Rural, A-3: Rural Residential.  3 parking spots required minimum and no more than 40% of the building can be used towards the suite;  more information below.

Secondary Suite Rules: http://www.viewroyal.ca/EN/main/municipal/secondary-suites.html

Bylaws: http://www.viewroyal.ca/assets/Town~Hall/Bylaws/Land~Use/035%20Land%20Use.pdf

Municipality has created the R1-A zone (temporary) to test secondary suite provisions. Council is currently considering allowing secondary suites in Single Family and Residential Estate zones. If bylaws are passed the R1-A zone will be dissolved. Agricultural zonings can have secondary suites. www.centralsaanich.ca/__shared/assets/
Land_Use_Bylaw__1309_165.pdf

Allowed via permit: http://www.northsaanich.ca/Municipal_Hall/Bylaws.htm

Bylaws: http://www.northsaanich.ca/Assets/NSaanich/PDF+Files/Bylaws/Bylaw+1244+Secondary+Suite+Annual+Permit+Requirement.pdf

www.sidney.ca/Assets/Developmetn+Services/
Bylaws/Bylaw+1660+Zoning.pdf

Allowed in any Greenbelt, Agricultural, Rural Residential or Residential, except Small Lot RS1, Multiple Residential, or CD4 or any zone that specifically excludes them.http://www.district.langford.bc.ca/documents/bylaws/
Zoning_Bylaw_300.pdf

Allowed in all residential, upland and agricultural zones.https://metchosin.civicweb.net/Documents/DocumentList.aspx?ID=195

Not currently permitted but under study: http://www.highlands.ca/bylaws/076-100/100%20-%20Zoning%20Bylaw%20No.%20100%201998-Consolidated%20Version.pdf

Allowed via permit: http://www.colwood.ca/siteengine/activepage.asp?NewsID=35

Secondary Suite Application and Procedure: http://colwood.iwebez.com/siteengine/ActivePage.asp?PageID=248

Bylaw: http://www.sooke.ca/assets/Documents~and~Forms/Bylaws/270%20Sooke%20Zoning%20Bylaw.pdf