Building permits inside the City of Chattanooga are issued by the Land Development Office (LDO), which handles building and trade permits, zoning and floodplain from one office through the OpenGov portal, on a zoning framework that changed with the new Unified Development Code in December 2024.
This Chattanooga building permit guide covers what requires a permit, the Land Development Office that handles building, trade permits, zoning and floodplain in one place, the OpenGov portal, the new Unified Development Code that took effect in December 2024, and the city-versus-county split with Hamilton County and its different trade-licensing model.
Scope: inside the City of Chattanooga limits. Hamilton County handles unincorporated areas and some towns by agreement, on its own trade-licensing model.
City and county are different trade-licensing regimes. Inside Chattanooga, trade permits and licensing run through the Land Development Office; in unincorporated Hamilton County, the county issues its own trade licences. A trade contractor crossing the city line is crossing between two licensing systems, not just two offices. And check the parcel under the new UDC, effective December 2024, before relying on an older zoning map.
What requires a permit in Chattanooga?
Building permits inside the City of Chattanooga are issued by the Land Development Office (LDO), part of the city's Public Works, which handles building and trade permits, site development, zoning and floodplain management from a single office. This is a genuinely consolidated setup: building plan review, trade permits and licensing, and zoning all run through the LDO, which is why one office phone tree lists separate lines for plans review, trade permits and zoning.
Chattanooga and Hamilton County are separate permitting jurisdictions. The LDO handles work inside the city limits; Hamilton County Building Inspection handles unincorporated Hamilton County and some municipalities by agreement. Because the county issues its own trade licences while the city runs trades through the LDO, the city-or-county determination changes not just the office but the whole trade-licensing model. Tennessee does not have one permitting model, it has three, and which one applies decides who your building official actually is. A jurisdiction that has adopted codes meeting the state minimum and enforces them is an exempt jurisdiction: it runs its own plan review, permits and inspections, and the state stays out except for state buildings, schools and a handful of licensed occupancies. A jurisdiction that has not is non-exempt, and the State Fire Marshal's Office is the building official there, working through contracted deputy building inspectors who cover several counties each. And a jurisdiction that has passed a two-thirds resolution under T.C.A. § 68-120-101(b)(1)(B) is an opt-out or non-code jurisdiction, where one- and two-family dwellings sit outside the statewide standards altogether.
Zoning in Chattanooga changed recently and materially: the city adopted a new Unified Development Code effective 18 December 2024, which replaced the previous zoning framework. On any project where use, setbacks, density or site standards matter, confirm the parcel's status under the new UDC rather than an older zoning map, because the framework itself changed.
No political subdivision of Tennessee may adopt or enforce standards of fire prevention, fire protection or building construction that are less stringent than the state minimum. Local amendments can add to the code; they cannot subtract from it.
Permit required
- New residential and commercial construction, and additions
- Structural alterations, repairs, and changes of occupancy
- Retaining walls and related site work
- Accessory structures above the city threshold
- Reroofs, decks, and exterior structural work
- Electrical, plumbing, mechanical, and gas work
- Land-disturbing and floodplain development
- Signs, short-term vacation rentals, and solar panels
Typically exempt
- Painting, flooring, and cosmetic finishes
- Routine maintenance not altering structure or a regulated system
- Work in unincorporated Hamilton County or another municipality
- Minor work below the city's published thresholds
Chattanooga building department: who handles permitting
The Land Development Office is unusually consolidated for a Tennessee city. The same office handles building plan review and inspections, trade permits and licensing, zoning, land disturbance, floodplain, signs, short-term vacation rentals and solar — the city's own forms-and-permits index lists all of them under the LDO. In practice that means a single office relationship covers most of what a Chattanooga project needs, but also that the correct division line within the LDO matters when you call.
Applications, plan submissions and inspections run through the city's OpenGov permitting portal. For complex projects the LDO offers a pre-submittal consulting meeting through the portal, which is worth using on a commercial or mixed-use project to surface zoning and site issues before the formal application rather than during review.
The city-county trade split is the structural point to keep straight. Inside Chattanooga, trade permits and licensing run through the LDO; in unincorporated Hamilton County, the county issues its own trade licences through its examining boards. A trade contractor moving between the city and the county is moving between two different licensing regimes, not just two offices, so confirm which one governs the parcel before bidding the trade work.
| Detail | Information |
|---|---|
| Authority | City of Chattanooga Land Development Office (LDO), Public Works |
| Covers | Inside the City of Chattanooga limits only |
| County runs its own | Hamilton County Building Inspection (unincorporated and some towns) |
| Portal | OpenGov — chattanoogatn.portal.opengov.com |
| Plans review | (423) 643-5894 |
| Trade permits and licensing | (423) 643-5884 |
| Zoning | (423) 643-5891 |
| Zoning code | New Unified Development Code, effective 18 December 2024 |
| Pre-submittal | Consulting meeting available through the portal for complex projects |
One office, several lines. The Land Development Office handles building, trade permits and licensing, and zoning through OpenGov, with separate phone lines for plans review, trade permits and zoning. On a complex project, book a pre-submittal consulting meeting through the portal to surface zoning and site issues before you file.
Chattanooga and Hamilton County are separate jurisdictions on different trade-licensing models: the city runs trades through the LDO, the county issues its own trade licences. Confirm from the parcel whether the site is inside the city limits or in unincorporated Hamilton County before you file, because it changes both the office and the licensing regime.
Chattanooga permits: record types and what each covers
The Land Development Office runs building, trade and site records through OpenGov. These are the records you are likely to file:
Residential permit types
| Permit type | What triggers it | Review path | Fee basis |
|---|---|---|---|
| New construction | New dwellings, additions, and accessory structures above the local size threshold | Plan review against the adopted residential code, plus zoning; the state floor is the 2018 IRC with Appendix Q | Valuation-based |
| Addition | Added interior space, including additions of thirty square feet or more | Structural and energy review; the thirty square foot interior trigger is smaller than most applicants expect | Valuation-based |
| Renovation / alteration | Structural changes, layout changes, or added plumbing, mechanical, or electrical | Plan review scaled to scope; renovations of existing one- and two-family dwellings sit outside the state minimum standards | Valuation-based |
| Reroof | Roof covering replacement, recover, and structural deck repair | Deck and dry-in inspection; plan review rarely required | Valuation or squares |
| Solar photovoltaic | Rooftop or ground-mount arrays, with or without battery storage | Structural review of the attachment locally, with the electrical scope usually permitted and inspected by the state | Flat or system-size based |
| Battery energy storage | Wall or floor-mounted storage added to a dwelling | Electrical review plus fire separation and location check | Flat or per-permit minimum |
| Electrical | Service changes, panel upgrades, new circuits, EV chargers, and rewiring | In most of Tennessee a state record bought through CORE and inspected by a contracted Deputy Electrical Inspector, not a local one | Per-permit or per-device |
| Plumbing | New piping, repipes, fixtures, gas piping, and water heater replacement | Trade review; performed by a licensed plumber or a Limited Licensed Plumber below the contractor threshold | Per-permit minimum or per-fixture |
| Mechanical / HVAC | Changeouts, new ductwork, and refrigeration | Trade review; the contractor licence attaches once the trade portion reaches the statutory threshold | Per-permit minimum or per-unit |
| Deck and porch | New decks, screened porches, and structural rebuilds | Structural review of footings, ledger attachment, and guards | Valuation or flat |
| Swimming pool | In-ground and above-ground pools | Barrier, bonding, and electrical review; the bonding scope generally follows the state electrical record | Valuation or flat |
| Manufactured home set-up | Placing or re-siting a manufactured home | Zoning, floodplain, and anchoring review; manufactured homes sit outside the state minimum building standards but not outside local zoning | Flat or per-unit |
| Demolition | Full or partial demolition of a dwelling or accessory structure | Utility disconnect confirmation and site restoration check | Flat |
| City electrical permit | Residential wiring, service, or solar | Through the LDO under the city's adopted codes, not a state or county permit | Valuation-based |
| Short-term vacation rental | Operating a property as a short-term rental | A separate LDO permit type alongside the building record | Flat |
Commercial permit types
| Permit type | What triggers it | Review path | Fee basis |
|---|---|---|---|
| New commercial construction | Ground-up commercial, industrial, and institutional buildings | Concurrent review against the adopted building code, fire, and zoning; the state floor is the 2021 IBC with Tennessee amendments | Valuation-based |
| Tenant improvement / upfit | Interior fit-out of an existing tenant space | Building, trade, and life-safety review; accessibility attaches on change of use | Valuation-based |
| Change of occupancy | Converting a building or space to a different use group | Occupancy classification, egress, and accessibility review | Valuation or flat |
| Commercial electrical | Service, distribution, and branch circuit work | State record in most jurisdictions unless the municipality is one of the roughly thirty-five authorised to inspect its own electrical | Per-permit or valuation |
| Commercial plumbing | Process piping, fixtures, backflow, and grease waste | Trade review; backflow and grease interceptor sign-off where applicable | Per-fixture or valuation |
| Commercial mechanical | Rooftop units, kitchen exhaust and hood systems, and refrigeration | Trade review; hood and suppression systems draw fire review alongside mechanical | Per-unit or valuation |
| Commercial reroof | Roof covering replacement on a commercial structure | Deck, dry-in, and attachment inspection | Valuation or squares |
| Signage | Wall, ground, and illuminated signs | Zoning review for size and placement, plus electrical where illuminated | Flat or per-sign |
| Land disturbance | Clearing, grading, and stormwater-triggering site work | Erosion and sediment control review, separate from the building permit | Acreage-based |
| Commercial demolition | Full or partial demolition of a commercial structure | Utility disconnect, asbestos notification, and site restoration | Flat or valuation |
| State Fire Marshal plans review | Occupancies requiring State Fire Marshal approval, including schools and certain licensed facilities | Filed with the state through the plans submittal portal, in addition to and not instead of the local record | State fee schedule |
| Retaining wall / site work | A retaining wall or land development | Reviewed by the LDO's land-development side; a pre-submittal meeting helps | Valuation-based |
| UDC zoning review | A use, variance, or site-plan question under the new UDC | Reviewed against the Unified Development Code effective December 2024 | Varies |
Residential
- Single-discipline review in most cases
- The electrical record is usually a separate state permit, not a line on the building permit
- Contractor licence attaches at the statutory threshold; a Home Improvement licence may apply below it in nine counties only
- Septic properties need TDEC approval before ground is broken
Commercial — multi-discipline
- Concurrent review across building, trades, fire, and zoning
- Signed and sealed plans across every affected discipline
- The licensee's monetary limit caps the job value, separately from the permit
- Accessibility and life-safety review attach to any change of occupancy
Records you will actually see in Chattanooga
| Record | What it covers |
|---|---|
| Residential building permit | New homes, additions, alterations, and repairs |
| Commercial building permit | Commercial construction and tenant work |
| Retaining wall / site work | Retaining walls and related land development |
| Electrical permit | Through the LDO under the city's adopted codes |
| Plumbing / mechanical / gas | Trade permits through the LDO |
| Land disturbance / floodplain | Grading and floodplain development |
| Sign permit | Wall, ground, and illuminated signs |
| Short-term vacation rental / solar | STVR and solar-panel permits |
Solar permits in Chattanooga
Solar is reviewed on two tracks at once in Tennessee, and in most of the state those two tracks belong to two different governments. The structural side — attachment detail, rail spacing, and whether the existing framing carries the added dead load — is a local building review. The electrical side — conductors, overcurrent protection, rapid shutdown, labelling, and the service or supply-side connection — usually runs on a state electrical record instead, against the National Electrical Code edition the state programme enforces.
A residential solar installation inside the City of Chattanooga is a building permit for the structural attachment plus an electrical permit — and both run through the Land Development Office, because the LDO handles trades in house rather than routing electrical to the state. That keeps a Chattanooga solar job within one office, unlike unincorporated Hamilton County, where the county's own electrical board governs, or most of Tennessee, where electrical goes to the state. Confirm the parcel is city, and use the pre-submittal meeting for a larger array or a ground mount.
That split is the most common cause of a stalled Tennessee solar job. An installer who files the building record locally and assumes the electrical inspection comes with it will sit waiting for an inspector who was never booked. Confirm at the outset whether your jurisdiction is one of the roughly thirty-five municipalities authorised to run its own electrical inspections, or whether the electrical permit has to be bought from the state.
Interconnection runs on a third clock. Tennessee is served by the Tennessee Valley Authority through local power companies — municipal electric systems and rural electric cooperatives — and each sets its own application, meter and witness-test sequence. Permission to operate is not something the building department controls, so plan for the tracks to finish at different times.
Roofing permits in Chattanooga
A roof covering replacement needs a permit in most Tennessee jurisdictions that enforce their own codes. The permit is usually quick, but it is not optional, and the inspection that matters happens before the covering goes on rather than after.
Tennessee has no statewide product-approval database, so there is no approval number to search for or cite on the application. The assembly has to comply with the adopted code and the manufacturer's listed installation instructions, and that pairing is what the inspector checks — which makes the manufacturer's instructions a document worth having on site.
Reroofing requires a permit inside the City of Chattanooga and is filed through OpenGov with the Land Development Office. Because the city does not publish a single consolidated exemption list, confirm scope with the LDO before relying on any exemption. A residential reroof is charged against the value of the improvements, and a tear-off that exposes the deck draws a structural look rather than a covering-only inspection.
Sequencing is where reroofs go wrong. The deck and dry-in condition has to be visible when the inspector arrives, so covering it first means opening it back up. Where a previous layer has been torn off, expect attention to deck fastening and to any sheathing replaced along the eaves. Note also that a roofing subcontractor is licensed on the value of the roofing portion alone once that portion reaches the statutory threshold.
Chattanooga permit cost
Chattanooga building permit fees are valuation-based, set by the Land Development Office and assessed through the OpenGov portal. Because the LDO handles trades in house, the trade permit fees are the city's rather than a state electrical fee or a county trade licence, and building, trade and zoning items can attach to the same project.
Confirm current amounts against the LDO before budgeting, and factor in that a project touching the new UDC — a rezoning, a variance, a site-plan review — can carry its own zoning fees alongside the building permit. The pre-submittal consulting meeting is the place to size that up on a complex job.
| Fee component | How it works |
|---|---|
| Basis | Valuation-based, set by the Land Development Office |
| Portal | Applications, plans and fees through OpenGov |
| Trade permits | Handled in house by the LDO, city fees |
| Zoning | UDC-related reviews can carry their own fees |
| Pre-submittal | Consulting meeting available for complex projects |
| Septic properties | Health Department / state approval where there is no sewer |
| Confirm | Against the Land Development Office before budgeting |
Want a precise number for a specific Chattanooga project? Send us the scope and we will price the permit path before you file.
Chattanooga trade permits
Trade permits and licensing run through the Land Development Office. Four Chattanooga specifics decide whether your application moves:
Trades run through the LDO, not the state or the county
Inside Chattanooga, trade permits and licensing are handled by the Land Development Office on (423) 643-5884, not through a state CORE permit or the county's trade boards. That is different from unincorporated Hamilton County, so do not carry the county model across the city line.
Check the parcel against the new UDC
The Unified Development Code effective 18 December 2024 changed the zoning framework. On any project where use, setbacks or density matter, confirm the parcel's status under the current UDC before you design, because an older zoning assumption may no longer hold.
Use the pre-submittal meeting on complex jobs
The LDO offers a pre-submittal consulting meeting through OpenGov for complex projects. It is the place to surface zoning, floodplain and site issues before the formal application, which is cheaper than discovering them in review.
City limits only
The LDO permits work inside the city. Unincorporated Hamilton County and other municipalities run their own permitting, and the county on a different trade-licensing model. Confirm the parcel is city before you file.
Chattanooga permit application: how to apply step by step
Here is how to get a building permit in Chattanooga, from confirming the requirement through to close-out. Each step below corresponds to a real decision point where projects commonly stall.
The Land Development Office permits work inside Chattanooga; Hamilton County handles unincorporated areas and some towns by agreement on a different trade-licensing model. Settle jurisdiction from the parcel before you start.
Confirm the parcel's zoning status under the Unified Development Code effective 18 December 2024, especially where use, setbacks, density or site standards drive the project. The framework changed, so an older map may mislead.
For a commercial, mixed-use or floodplain-affected project, book the LDO's pre-submittal consulting meeting through OpenGov to surface issues before the formal application.
Set up the OpenGov application with plans, valuation and site plan. Contractors need a Tennessee state licence where the threshold applies; trade permits and licensing run through the LDO.
Submit through OpenGov, clear building, trade and any zoning or floodplain review, and pay the city fees. Use the correct LDO division line — plans review, trade permits or zoning — for questions during review.
Book inspections through the portal, run building and trade inspections through to final, and obtain the certificate of occupancy before legal occupancy or use.
Inspections in Chattanooga
Inspections are scheduled against the issued permit through OpenGov, with building plan review and inspections handled by the LDO and trade permits and licensing handled by the same office. Typical checkpoints run footing and foundation, trade rough-ins, framing, insulation and final, with the permit and approved plans on site.
Because the LDO handles trades in house, the electrical, plumbing, mechanical and gas inspections here are the city's rather than a state or county track. That keeps a Chattanooga project's inspections under one office — simpler than the split arrangements in some Tennessee jurisdictions — provided the trade permits were pulled through the LDO in the first place.
The city's own guidance notes that its permit pages do not publish one consolidated exemption list, so an applicant should confirm scope with the LDO before relying on any exemption. That is a sensible default in Chattanooga: treat the exemption question as one to confirm with the office rather than one to infer from a published list.
Chattanooga does not publish a single consolidated exemption list, so confirm scope with the Land Development Office before relying on an exemption. Match what was permitted against what is standing on an existing building before filing a change of occupancy.
Chattanooga permit search and official resources
The City of Chattanooga publishes its Land Development Office forms, permits and OpenGov portal online, with the county and state resources that sit alongside them.
- Chattanooga Land Development Office — forms and permits
- Chattanooga OpenGov permit portal
- Hamilton County Building Inspection (unincorporated areas)
- TN Board for Licensing Contractors
- State electrical permits (CORE)
- State Fire Marshal codes enforcement
Frequently asked questions
Who issues building permits in Chattanooga, TN?
The City of Chattanooga's Land Development Office (LDO), part of Public Works, which handles building and trade permits, site development, zoning and floodplain in one office. Hamilton County Building Inspection handles unincorporated Hamilton County and some municipalities by agreement.
Is Chattanooga a separate permit from Hamilton County?
Yes. Chattanooga and Hamilton County are separate permitting jurisdictions on different trade-licensing models. The city runs trades through the LDO; the county issues its own trade licences through its examining boards. Confirm from the parcel which one governs before you file.
How do I apply for a Chattanooga building permit?
Through the city's OpenGov permitting portal, which carries applications, plan submissions and inspections. For complex projects, the LDO offers a pre-submittal consulting meeting through the portal to surface zoning and site issues before the formal application.
What changed with Chattanooga's zoning?
The city adopted a new Unified Development Code effective 18 December 2024, replacing the previous zoning framework. On any project where use, setbacks, density or site standards matter, confirm the parcel's status under the current UDC rather than an older zoning map.
Where do trade permits come from in Chattanooga?
Inside the city, trade permits and licensing run through the Land Development Office on (423) 643-5884, under the city's adopted codes. That is different from unincorporated Hamilton County, where the county issues its own trade licences, so do not carry the county model across the city line.
Does the LDO publish a list of exempt work?
The city's own guidance notes that its permit pages do not provide one consolidated exemption list, so an applicant should confirm scope with the LDO before relying on any exemption. Treat the exemption question as one to confirm with the office.
Do I need a contractor licence in Chattanooga?
A Tennessee contractor licence is required to bid or perform work valued at twenty-five thousand dollars or more, including labour and materials, and the same threshold reaches trade subcontractors on their own portion. Trade licensing inside the city runs through the LDO.
Do I need a Home Improvement licence in Chattanooga?
Yes. Hamilton County, which contains Chattanooga, is one of nine Tennessee counties where the Home Improvement licence applies, for residential improvement work from three thousand dollars up to just under the twenty-five thousand dollar contractor threshold. Above that a full state contractor licence is required.
What are the Land Development Office phone lines?
The LDO lists separate lines for its divisions: (423) 643-5894 for building plans review, (423) 643-5884 for trade permits and licensing, and (423) 643-5891 for zoning. Using the correct division line speeds a question during review.
Should I use the pre-submittal consulting meeting?
On a complex, commercial, mixed-use or floodplain-affected project, yes. The LDO offers a pre-submittal consulting meeting through OpenGov to surface zoning, floodplain and site issues before the formal application, which is cheaper than discovering them in review.
Does Chattanooga check my HOA covenants?
No. Deed restrictions, covenants and subdivision regulations are private matters between the owner and the subdivision. A permit that clears the LDO can still breach a covenant, and the city will not have checked.
How do I confirm a Chattanooga parcel is city and not county?
Confirm the parcel is inside the Chattanooga city limits rather than unincorporated Hamilton County before filing, because the two are separate jurisdictions on different trade-licensing models. The LDO and the county building inspection department serve different areas.
Simplify Chattanooga permitting with Alliance Permitting
Chattanooga's consolidated Land Development Office, its OpenGov portal, its new UDC zoning framework and its in-house trade licensing reward applicants who confirm the parcel is city, check the current UDC, and use the pre-submittal meeting on complex jobs.
Trusted by leading builders, developers, and national contractors — 21 years of filing in the jurisdictions we write about.
Contractors and builders choose Alliance for Chattanooga because the work is done by people who have stood at the counter:
- Right authority — City of Chattanooga or unincorporated Hamilton County, resolved from the parcel and its licensing model.
- Current zoning — the parcel checked under the Unified Development Code effective December 2024, not an older map.
- Issues surfaced early — a pre-submittal consulting meeting used on complex, commercial or floodplain-affected projects.
- Complete oversight — every Chattanooga building, trade and zoning record and inspection tracked across your jobs in one place.
Alliance Permitting is a permit documentation and expediting service in Tennessee. We are not a law firm and do not provide legal advice, and we are not the permitting authority.
Ready to break ground in Chattanooga sooner?
Let Alliance prepare, file, and track your Chattanooga permits while your crew stays on the job.
More Tennessee permitting guides
This guide is provided by Alliance Permitting for general information about Chattanooga permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.