The Building Division processes building permits and provide plan review and inspection services. As of December 31, 2020, the Building Division enforces the 2020 Building Code, 7th Edition, and the 2017 NEC. The 7th Edition of the Florida Fire Prevention Code is utilized for fire review.

The City of Lake Mary has an exclusive franchise agreement with Waste Pro for solid waste removal. The exception is construction site contractors that wish to recycle may elect to use an authorized city-approved recycling company.