Reference boundary

Ontario laneway and backyard-suite source-navigation only. It does not publish laneway or backyard suite load calculations, service values, utility capacity answers, municipal permit answers, or approval decisions.

Reference table

Point to municipal, utility, Ontario, and CSA source pages relevant to laneway or backyard suite load review.

Reference basis uses municipal additional residential unit guidance, ESA Ontario Electrical Safety Code navigation, and local utility service-request navigation.
Source areaCurrent sourceReview useBoundary
Municipal ARU guidanceMunicipal additional residential unit or laneway suite guidanceUse this laneway-suite source before reviewing local accessory-dwelling context.source-navigation only; no laneway load calculation, permit answer, zoning answer, or approval decision is reproduced
ESA OESCOntario Electrical Safety Code pageUse this page to confirm the current Ontario code cycle before reading suite-load sources.source-navigation only; no laneway load calculation, Ontario rule text, amendment, or service conclusion is reproduced
Utility service requestLocal utility service request or connection guidanceUse the current utility request path before any service-capacity or connection discussion.source-navigation only; no laneway load calculation, utility capacity answer, service value, or connection acceptance is reproduced
Use notes
  • Use this table only for source-navigation and current source-area review.
  • Confirm the current source document, product marking, utility page, or authority guidance before any design or field decision.