Building permits, zoning and septic rules in Johnson City, Tennessee

At a glance

Building permits

City Building Division: required for new houses, duplexes and additions¹

Zoning

City zoning districts and overlays apply; verify the parcel district²⁵

Septic permits

TDEC handles septic systems serving Washington County properties³⁶

RV living

RV use as an accessory structure for human occupancy is prohibited on residential lots⁴

Accessory dwellings

Accessory residential dwelling units are prohibited for human occupancy on residential lots⁷

Owner-builder

Conditional exemption for a residence for the owner’s own use, not resale, lease or rent⁸

Minimum lot size

R-2A: 12,000 square feet; A-1 single-family residences: 3 acres⁹¹⁰

Who to call

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Do you need a building permit in Johnson City, TN?

Johnson City requires a residential building permit for a new house, duplex or addition; the city Building Division is the issuing office.¹ Johnson City’s CityView Portal supports building applications, status checks, fee payments, document review and revisions.¹¹ Ask the Building Division to identify the building and trade applications needed for your proposed work before submitting plans.¹

An owner building a Johnson City residence for personal use may qualify for Tennessee’s owner-builder exemption, limited to a residence once every two years and excluding resale, lease or rental use.⁸ Johnson City’s homeowner building-permit process also requires a signed affidavit.¹

Does Johnson City have zoning, and what lot sizes and setbacks apply?

Johnson City administers zoning districts and overlays; use the city district map with the adopted zoning ordinance and ask the Planning Division to confirm the parcel’s district before designing a home.²⁵

In Johnson City’s R-2A district, the minimum lot size is 12,000 square feet, with an 80-foot width at the front building line.⁹ R-2A front setbacks are 25 feet on arterial or collector streets and 20 feet on other streets; front-facing garages need 25 feet on every street, while side and rear setbacks are 10 and 30 feet.¹²

Johnson City’s A-1 district requires 3 acres for single-family residences and a 125-foot lot width at the front building line.¹⁰ A-1 front setbacks are 50 feet on arterial streets, 40 feet on collectors and 30 feet on other streets, with 25-foot side and 50-foot rear setbacks.¹³ These district-specific limits make parcel zoning a necessary starting point for a site plan.⁹¹⁰

How do septic permits work inside Johnson City?

TDEC’s Division of Water Resources handles septic permitting for Washington County properties, including properties inside Johnson City that need a septic system.³ Tennessee requires a septic construction permit before construction, modification or repair of a septic system, and advises obtaining the permit before dirt work or building-pad construction.⁶

A new conventional system permit costs $400 for design flow up to 1,000 gallons per day; a new alternative system permit costs $500 at that flow, and alternative systems require an extra-high intensity soils map from a Tennessee-licensed soils consultant.⁶ The installer must notify TDEC after installation so the system can be inspected before covering.¹⁴ For an existing Johnson City property, request the septic layout from the TDEC Johnson City Environmental Field Office, including the property address and available subdivision and owner history.¹⁵

Can you live in an RV or tiny home in Johnson City?

Johnson City prohibits recreational vehicles used as accessory structures for human occupancy or storage on residential lots; the prohibition also lists converted vans, converted buses and semi-trailers.⁴ A residential lot therefore should not be purchased on the assumption that an RV can serve as an accessory dwelling while a house is built.⁴

Johnson City also prohibits accessory residential dwelling units used as accessory structures for human occupancy on residential lots.⁷ We could not confirm Johnson City’s rules for a tiny home used as the principal dwelling, minimum dwelling floor area or every temporary camping situation; ask the city Planning Division about the specific design and intended occupancy.¹⁶ The city’s active-agriculture exemption concerns landscape regulations and does not establish a building-permit or dwelling exemption.¹⁷

Building a home in Johnson City: what are the steps in order?

Start by asking Johnson City’s Planning Division to confirm the parcel’s zoning district and overlays, then compare the proposed lot and building footprint with that district’s dimensions.⁵⁹¹⁰ If the Johnson City site needs septic, obtain TDEC’s septic construction permit before dirt work or building-pad construction.⁶

For development in Johnson City flood-prone areas, apply to the Chief Building Official before development activity; the floodplain application may require scaled plans, elevations and floodplain or floodway limits.¹⁸ Submit the city building application through CityView, where applicants can review documents, pay fees and upload revisions.¹¹ Arrange the city construction inspections through the permit holder, and arrange TDEC’s inspection before covering a newly installed septic system.¹¹⁴

What stays with Washington County, and what should you check before buying in Johnson City?

Johnson City’s building and planning applications belong with the city, while TDEC remains the septic authority for Washington County properties.¹¹³ Outside Johnson City limits, Washington County’s guide covers the county’s rural, unincorporated zoning jurisdiction.¹⁹

For a Johnson City driveway involving state highway right-of-way, TDOT requires a highway entrance permit before construction, modification or a change in use.²⁰ Ask the city Building Division about access review for the particular site, and ask the city Planning Division to route questions about sewer service and any proposed private well or off-grid sanitation system; we could not confirm the city-specific well and off-grid sanitation rules.¹¹⁶ Flood-prone Johnson City land needs city development review before work begins, so resolve floodplain requirements alongside the proposed building location.¹⁸

Watch-outs

• Johnson City’s RV restriction applies to accessory use on residential lots; ask the city Planning Division about temporary camping rather than assuming a construction-period exception.⁴¹⁶
• We could not confirm current Johnson City building-permit fee amounts; ask the Building Division for the applicable fee schedule before budgeting.¹
• Tennessee’s county agricultural zoning exemption does not apply to municipalities such as Johnson City.²¹
• Johnson City floodplain development applications go to the city Chief Building Official before development activity.¹⁸

Sources

1. Johnson City Development Services — Building Division (cms7files.revize.com)
2. Johnson City Zoning and Overlays MapServer (Johnson City), quoted and re-checked
3. Online Application for Septic Related Services, quoted and re-checked
4. Article IV, Section 4.13, Accessory Structures and Uses (Johnson City), quoted and re-checked
5. Johnson City Zoning and Overlays MapServer (Johnson City), quoted and re-checked
6. Septic System Construction Permit (Tennessee statewide rule), quoted and re-checked
7. Article IV, Section 4.13, Accessory Structures and Uses (Johnson City), quoted and re-checked
8. tn.gov (Johnson City), quoted and re-checked
9. Article VI, Section 6.3, R-2A Low Density Residential District (Johnson City), quoted and re-checked
10. Article VI, Section 6.21, A-1 Agricultural District (Johnson City), quoted and re-checked
11. CityView Portal (Johnson City), quoted and re-checked
12. Article VI, Section 6.3, R-2A Low Density Residential District (Johnson City), quoted and re-checked
13. Article VI, Section 6.21, A-1 Agricultural District (Johnson City), quoted and re-checked
14. Subsurface Sewage Disposal System (SSDS) Frequently Asked Questions (Tennessee statewide rule), quoted and re-checked
15. TDEC Johnson City Environmental Field Office (tn.gov)
16. Johnson City Development Services — Planning Division and CityView assistance (jc-cityviewweb.johnsoncitytn.org)
17. Article XII, Section 12.1, General Landscape Provisions (Johnson City), quoted and re-checked
18. Article VIII, Section 8.3, Administrative Procedures for Floodplain Regulations (Johnson City), quoted and re-checked
19. Zoning, Planning & Building Codes, quoted and re-checked
20. Highway Entrance Permits (Tennessee statewide rule), quoted and re-checked
21. Exemption from County Zoning Regulation for Buildings on Land Used for Agriculture, Opinion No. 22-07 (Tennessee statewide rule), quoted and re-checked

Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.