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Building an Addition

At-a-glance

Is a ...

Required?

Permit

Yes

Contractor

No*

Zoning Check and Site Plan

Yes

Inspection

Yes

Construction Plan Review

Yes

Homeowners can perform work on their own properties without a contractor

Before You Start

Look at these pages:

Interior Remodeling or Alterations

Exterior Remodeling or Alterations

Finding a licensed contractor

Hiring a Residential Contractor – what do I need to know? (PDF)

Site Plan

Zoning Approval

Property Line Information

Property Line Location (PDF)

Summary of Rules for Building on Property

About Additions

Requirements for Additions and Alterations (energy requirements) (PDF)

Minimum Standards for Dwellings (PDF)

Roofing a House or Addition

About Permits

Applying for a Permit

Permits Overview

Timeline for Completion

About the Inspections Process

Site Plan

Inspections Process

Handouts for Additions

Checklist for Room Addition to 1 & 2 Family Homes

Sample Residential Site Plan

Home Energy Guides

Cutting, Notching, & Boring Wood Frame Members

Energy Requirements for Additions and Alterations

Exterior Wall Section for Wood Frame Construction

Insulation of Concrete Block Foundation Walls

Porches - Information on Screened and 3-Season Porches

Insulation of Concrete Block Foundation Walls

Dormer Permit Requirements