Zoning, building permits and septic rules in Maryville, Tennessee

Maryville’s own rules

• Building code adoptedAdopted

  Building and property maintenance codes inside Maryville city

  • Adopted with local modifications
  • Effective January 1, 2026
  • 2017 NFPA 70 National Electrical Code continues to be enforced and was not updated
  • Adopted: 2024 IBC, IRC chapters 1-23, 25-33, 44, IMC, IECC, IPC, IFC and 2024 Property Maintenance Code

  “on december 2, 2025, the maryville city council completed the process for the adoption of several new building and property maintenance codes with local modifications.”

• Local zoningPresent

  Land inside Maryville city, Blount County, TN

  • Source is the 2019-updated copy of Title 14 on the city's own site; later amendments were not checked.

  “title 14 zoning and land use control chapter 1. municipal planning commission. 2. zoning and land use ordinance. 3. historic zoning commission.”

• Minimum lot sizeSpecified

  Residential lots inside Maryville city using a subsurface sewage system (no public sewer)

  • 30,000 sq ft if on subsurface disposal with public water; 35,000 sq ft per unit if neither sanitary sewer nor public water is available
  • Other districts (e.g. College Hill historic district: 14,000 sq ft) have their own minimums; main R-district minimums not retrieved

  minimum useable lot area, subsurface sewage with public water: >= 30000 sq ft · minimum lot area per unit, no public sewer or water: >= 35000 sq ft

  “there shall be a minimum of thirty thousand (30,000) square feet of useable lot area for lots developed for residential purposes.”

• Mandatory utility hookupConditional

  Residential lots inside Maryville city

  • Water and sewer connection requirements follow the rules of the city water quality control department
  • Every lot must be served by sanitary sewer or an adequate sewage disposal system complying with health regulations
  • No fixed distance rule found

  “every principal use and every lot within a subdivision shall be served by sanitary sewer as provided in (2) of this section or by a sewage disposal system that is adequate to accommodate the reasonable needs of such use or subdivision lot and that complies with all applicable health regulations.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Maryville or Blount County directly.

• Building permit — Construction inside Maryville city
• Owner-builder exemption — Owner-builders inside Maryville city
• Inspections — Construction inside Maryville city
• Certificate of occupancy — New buildings inside Maryville city
• Zoning districts — Inside Maryville city

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.