This guide explains the process of applying for
a building permit from the City of Mississauga
for construction projects of residential use.
These projects include the construction of,
additions to and alterations of, single family
dwellings, decks, sheds, gazebos, cabanas and
other small buildings of residential use which
are not more than 3 storeys in building height
and not more than 600 square metres in building area.
If you have questions about any BUILDING permit related forms or wish to have some mailed to you, please contact our Call Centre at 3-1-1, 7am to 7pm. If calling from outside Mississauga, dial 905 615-4311. Our Fax number is 905-896-5638.
What are the timelines for a complete application?
When an application for a permit contains the prescribed information, the chief building official is required to determine within the period prescribed by regulation whether to issue the permit or refuse to issue it.
Period Within Which Permit Shall be Issued or Refused
Forming Part of Article 184.108.40.206.
Class of Building
(a) A detached house, semi-detached house, townhouse, or row house where no dwelling unit is located above another dwelling unit.
(b) A detached structure that serves a building described in Clause (a) and does not exceed 55 m2 in building area.
(c) A tent to which Section 3.14. of Division B applies.
(d) A sign to which Section 3.15. of Division B applies.
(a) Buildings described in Clause 220.127.116.11.(1)(a), (b) or (c) of Division A, other than buildings described in Column 1 of any of Items 1 and 4 of this Table.
(b) Farm buildings that do not exceed 600 m2 in building area.
(a) Buildings described in Clause 18.104.22.168.(1)(a) or (b) of Division A, other than buildings described in Column 1 of any of Items 1 and 4 of this Table.
(b) Farm buildings exceeding 600 m2 in building area.
(a) Post-disaster buildings.
(b) Buildings to which Subsection 3.2.6. of Division B or any provision in Articles 22.214.171.124. to 126.96.36.199. of Division B applies.
The time period described shall begin on the day following the day on which an application that meets the requirements and shall not include Saturdays, holidays and all other days when the offices of the principal authority are not open for the transaction of business with the public.