Additions, either to a dwelling or a garage, require a building permit. Construction plans should include a cross-section of the house, a floor plan, footing plans and a certificate of survey. Also, see the single-family lot guidelines (PDF) for standard setbacks from your property lines.

Note: Smoke alarms and carbon monoxide detectors (PDF) are required to be placed throughout the house per code before a final inspection will be approved.

Involving a Contractor

If a contractor is constructing the addition, the city requires the contractor to be licensed with either the state or the City of Maplewood. All gas work must be done by a contractor who is licensed for heating, ventilation, and air conditioning (HVAC) with the City of Maplewood.

Documentation required when applying for an addition building permit:

  • Building Permit Application (PDF) - Including project valuation
  • 3 copies of construction plans, including:
    • Cross-section of house
    • Energy calculations
    • Floor plan
    • Floor truss layout
    • Footing plan
    • Heat loss calculations
    • List of materials
    • Roof truss layout
  • 3 copies of a certificate of survey or site plan (PDF) - Showing proposed addition and all distances to property lines and other buildings
  • Separate permits are required for plumbing (PDF), mechanical (PDF), or electrical (PDF) work