Customer Assistance Guides


These guides have been prepared and are made available so building permit applicants understand what information must accompany any Application for a Building Permit.  If questions arise, please call the telephone number provided in the Guide.

New Single Family Dwelling (Traditional Construction)

New Single Family Dwelling (Pre-Manufactured Construction)

Residential Addition

Swimming Pools, Hot Tubs and Spas

Deck Construction

Shed, Detached Garage, other structure less than 1,000 square feet

Shed, Detached Garage, other structure greater than 1,000 square feet

Middle Department Inspection Agency, Inc. (MDIA) is the Township’s third-party building plan review and building inspector.  MDIA will performs all the building plan reviews and inspections as required by the State-wide Uniform Construction Code (UCC).


MDIA provides regular hours at its business office located along Perry Highway (Route 19) in Wexford (across from the entrance to North Allegheny High School).  The Field Inspector will also maintain limited office hours at the municipal building when necessary.  Should you need to meet with the inspector/plan reviewer, we recommend a pre-scheduled appointment be arranged first.


Currently, ALL Building Permit applications are ONLY available at the municipal building and may be obtained during normal business hours.

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Middlesex Township Butler County


Valencia, Pennsylvania


Incorporated 1794

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