Mechanical unit

(Heat pump, spa, air conditioning unit, solar energy, geothermal)

Required documents for review:
Mandatory documents marked by an asterisk (*)

  • *A letter describing the scope of the proposed work;
  • *A letter from the building owner authorizing the permit application, if the request is made by a third party;
  • *A letter from the association of co-owners authorizing the proposed modification;
  • *A copy of a recent certificate of location, showing the current conditions of the property, showing the relative location of the mechanical unit(s) to the property lines;
  • Scaled and dimensioned drawings of the visual screen, where appropriate;
  • An official cost estimate, excluding taxes, provided by a general contractor.

The additional documents listed below are required, according to the type of interventions planned:

Mechanical unit

  • *Illustrated specifications of mechanical units, including dimensions and source noise level in decibels (dB);
  • *The description of the spring rail antivibration suspension system if the heating or cooling units are installed on the roof of a semi-detached or attached building;
  • *A start sheet in case of a generator;
  • The maximum floor area of the residence to establish the volume limit.

Solar energy

  • *A plan showing the installation of the photovoltaic panels;
  • *A data sheet of the photovoltaic panels or of the wind turbine including an image and dimensions.


  • *A plan of the foreseen drilling, indicating the location of the drilling equipment;
  • *A data sheet of the photovoltaic panels or of the wind turbine including an image and dimensions;
  • *A site management document including the phasing and schedule of work, the method of retention of sludge, the occupation of public roads and municipal property.

This list is a summary. Please note that additional documents or information may be required in order to provide a better understanding of the project and contribute to the request process. (By-Law #1300, article 65, point 14o)

Once you have gathered all the information you can open your file at the Urban Planning Counter in City Hall or open an online application.

  • *The fee for the document analysis is 55$; the cost of the permit is separate.
  • The cost of the permit is calculated from the cost of work.
  • All files must be analyzed by the Urban Planning Department before they are referred to the Planning Advisory Committee and City Council.
  • The applicant will receive a follow-up via email.
  • Your permit will be issued at City hall or sent by email.

Information you need to bring:

  • A detailed construction cost, excluding taxes as provided by the general contractor or a project manager (tariffs By-law).
  • All other documentation requested that needs to be deposited prior to the issuance of a permit (ex. RBQ form, a site management document, asbestos report, sidewalk deposit, …).

Applies to all exterior changes to a building or property.

Need help with applying for a permit online? Here is a step-by-step guide