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Plan Review  

The Plan Review staff of the Redmond Building Division is responsible for the review of all construction plans submitted for permit.  These plans are reviewed for compliance with the adopted State of Washington Building Codes and City regulations.  Our staff is certified by ICC, ICBO, IAPMO and other organizations to review plans using the International Building Code, International Residential Code, International Mechanical Code, International Fuel Gas Code, Uniform Plumbing Code, National Electrical Code, Washington Energy Code and Washington Ventilation & Indoor Air Quality Code.  We also have a professional engineer on staff who performs structural reviews for some commercial and multifamily projects.  Plan reviews are completed using checklists to ensure the completeness of the review.  For information on review timeframes, see "How long will it take to get a permit?"

To check on the status of a project that is currently in the Plan Review process, visit either our DirectRequest or On-Line Status web pages. 

Life Safety Architectural Plan Review
Life Safety Architectural Plan Review ensures that the plans comply with the Code for life safety, including exiting, occupancy separations and any fire resistive construction requirements.  In addition, the plans are checked for energy conservation, number of required plumbing fixtures and accessibility. These reviews are preformed on plans submitted for renovations, remodels, alterations and new construction for both residential and commercial construction for both new and existing buildings.

Structural Plan Review
The purpose of the Structural Review is ensure that minimum levels of structural public safety are provided.  Structural reviews are performed for both commercial and residential construction, including new construction, renovations and seismic upgrades to existing building.  For minimum design requirements see "What are the basic design requirements in Redmond?" 

Electrical Plan Review
Electrical Plan Review is generally required for large commercial or multi-family projects.  This review looks at the loads that are to be placed on the electrical system.  The purpose of this review is to ensure that the wiring will be safe and comply with the Code. For free software for preparing fault current calculations, click on Bussmann Software.  To determine if your project requires Electrical Plan Review please refer to our Electrical Permit Application form.

Mechanical/Plumbing Plan Review
Mechanical/Plumbing Review is usually required only on medium to large commercial or multi-family projects. The purpose of these reviews is to ensure that the systems will comply with the Ventilation & Indoor Air Quality Code and meet minimum sanitation requirements. To determine if your project requires Mechanical or Plumbing Plan Review please refer to the Mechanical Permit Application or the Plumbing Permit Application

Please note that the Washington State Building Code Council did not adopt any fuel gas piping, combustion air or venting of equipment under the 2003 Uniform Plumbing Code.

All fuel gas piping installations except LPG are covered by the 2003 International Fuel Gas Code and the 2003 International Mechanical Code.

Liquefied Petroleum Gas installations are covered by NFPA 54, the 2002 National Fuel Gas Code, and NFPA 58, the 2001 Liquefied Petroleum Gas Code.

Plan Review Submittal Documents
Plans submitted for review need to be final, complete and legible scaled drawings, plus any calculations, specifications and/or other pertinent data. The minimum plan sheet size is 18" x 24" with a minimum scale size of 1/8" = 1 foot for floor plans and 1/4" = 1 foot for details.  Please refer to Permit Applications & Submittals for specific permit submittal requirements.  

All New Commercial or Multi-Family Projects must submit a Code Summary Worksheet and include CS (Code Summary) Sheets in the drawings. 

Please note that we cannot accept any submittal drawings that are marked "Not For Construction" or "Reversed" floor plan drawings.

Additional Plan Review Requirements
Review by the following outside organizations and City of Redmond Departments and Divisions may be required in addition to reviews completed by the Redmond Building Division:

  • King County Health Department approval is required for all food establishments. 
  • Redmond Fire Prevention Bureau approval is required for most commercial or multi-family Building Permits and some Mechanical Permits.  The Redmond Fire Prevention Bureau reviews plans for compliance with the Uniform Fire Code and any fire sprinkler or fire alarm requirements.
  • Redmond Planning Development Review Division approval is required for most commercial or multi-family Building Permits and for Single-Family Building Permits in Planned Residential Developments (PRD).  The Development Review Division reviews plans for compliance with the land use provisions of the Redmond Municipal Code and the Redmond Community Development Guide.
  • Redmond Public Works Department Development Services Division must approve different types of permits.  The Development Services Division reviews civil and site drawings for issues related to Construction Inspection, Engineering, Transportation, Stormwater and Utilities.  Please contact the Permit Coordinator to determine if Development Services Division review will be required for your project.

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