Zoning and building permits are required for new decks and expanded decks. Building permits are required for reconstruction or repair of deck construction.
Deck construction for one- and two-family dwellings must comply with the 2015 International Residential Code portion of the 2018 Connecticut State Building Code. Any construction that is beyond the limitations of conventional construction in the code must be designed using accepted engineering practice or be designed by a registered design professional.
A site plan or sketch will be necessary to show the location of the deck and that it is compliant with zoning regulations for setback from property lines. The Engineering Department will need to verify the location of the deck in relation to any inland wetlands or watercourses nearby.
A plan drawn to at least ¼” scale must be submitted for the building permit that shows deck size and height, framing members, beams, girders, supports, fasteners, connection to the house, guards, stairs, handrails, material specifications and any other information that provides a detailed description of the work that is proposed.
A helpful guide for code compliant deck construction is the Prescriptive Residential Wood Deck Construction Guide (based on the 2015 IRC) published by the American Wood Council. Using this as your guide for the design and construction of your deck will assure code compliance and permit approval. Click here to download a free PDF copy.