The data contain records that are totals for sub-categories of permit types. Refer to the hierarchies of building types and type of work to avoid double-counting. 

BUILDING TYPES

Residential
    Single
      Single House
      Single House - Condominium
  Cottage
      Seasonal Dwelling (cottage)
  Mobile
      Mobile Home
  Small Project
      Minor residential additions and renovations
  Multiple
    Double
      Semi-Detached or Double House - Condominium
      Semi-Detached or Double House
  Row
      Row House - Condominium
      Row House
  Apartment
      Apartment - Condominium
      Apartment
  Small Project
      Minor residential additions and renovations

Non-Residential
    Commercial
      Hotel, Restaurant
         Hotel
         Restaurant, bar
         Convention centre
         Motel
         Other accommodations
      Laboratory
         Laboratory and research centre
      Office Building
         Office building
         Office complex
      Recreation
         Outdoor recreational building
         Indoor recreational building
         Theatre and performing art centre
      Trade and Service
         Retail and wholesale outlets
         Retail complex
         Motor vehicle show room (new and used)
         Special
      Warehouse
         Storage building (warehouse)
      Small Project
         Minor commercial projects, non residential
      Service Stations
         Service station, repair garage and specialty shop
    Industrial
      Factory, Plant
         Manufacturing building
         Maintenance building (including hangar)
      Mining, Agriculture
         Primary industry building
         Mining building
      Utility, Transportation
         Utility building
         Transportation terminal
         Communication building
      Small Project
         Minor industrial projects, non residential
    Institutional
      Education, School
         Secondary school
         Post-secondary institution
         University
         Elementary school
         Library, museum, art gallery, etc.
      Govt. Admin Building
         Government legislative building and administration building other than office buildings
         Other government buildings (police, fire, etc.)
      Medical, Hospital
         Hospital
         Clinic, health unit
      Religion, Church
         Religious building
      Welfare, Home
         Day care, nursing home
      Small Project
         Minor institutional projects, non residential

TYPES OF WORK

• Types of work, total
  
  • New dwelling units total
  • New residential and non-residential constructions, total
    
    • New construction
    • Foundation
    • Superstructure or part of a new building
    • Mechanical
    • Installation of a pre-fabricated building
    • Additional value to previous permit(s)
  • Improvements total
    
    • Addition to existing building (structural extension) for non-residential only
    • Alterations and improvements
  • Garage and carport for residential construction, only
  • Conversions total
    
    • Conversion from single to multiple dwelling
    • Conversion from multiple to multiple dwelling
    • Conversion from non-residential to residential building
  • Deconversion total
    
    • Deconversion from single to non-residential building
    • Deconversion from multiple to multiple or single dwelling or non-residential building
  • Inground swimming pools for residential construction, only
  • Demolitions for residential dwellings