By Shahzaib Nadeem, Content Writer at CADTRI · Published July 06, 2026
Quick answer: How long does it take to get a building permit? For simple work, sometimes a single visit: many departments issue minor permits over the counter, the same day. A typical single family remodel or addition usually runs two to eight weeks of review. New custom homes commonly take one to three months. Commercial projects range from two to six months and beyond, depending on size and the number of agencies involved. The honest answer is that the calendar time depends less on the rules than on two things: how complete the application is on day one, and how many review rounds it takes to clear corrections.
Those ranges are typical industry patterns, not promises. Your jurisdiction publishes its own targets, and the spread between a fast department and a backlogged one can be the difference between weeks and seasons. What this guide gives you is the structure underneath the ranges: where the time actually goes, what the law in Florida, Texas, and North Carolina requires of reviewers, and which levers genuinely compress the schedule.
Where the time actually goes
A permit timeline is not one clock. It is a chain of clocks, and most people only see the total.
1. Intake and completeness. Before review starts, the department screens the submittal against its checklist. An incomplete package does not enter review; it bounces. This stage costs anywhere from a day to a few weeks, and it is the most preventable delay in the entire process.
2. Plan review rounds. Reviewers from multiple disciplines (building, zoning, fire, utilities, sometimes health or environmental) check the drawings against code. Round one ends either in approval or in a corrections letter.
3. The resubmittal cycle. This is the silent budget killer. Each corrections letter requires revised drawings, a written response, and a new review round. Every cycle adds your response time plus the department's re review time. A project that needs three rounds can spend more calendar time waiting between rounds than being reviewed in them.
4. Issuance. Approved plans get stamped, fees get paid, the permit is issued. Construction can start, with inspections along the way, ending in the certificate of occupancy that makes the building legal to use.
Two consequences follow. First, statutory deadlines and posted department targets generally measure single review rounds, not your total wait; the clock pauses or restarts whenever the ball is in your court. Second, the cheapest way to cut total time is to cut the number of rounds, which is decided by submittal quality before the clock ever starts.
Typical timelines by project type
Typical building permit review timelines vary depending on the scope and complexity of the project, so they should be treated as planning estimates rather than guaranteed approval periods. Simple projects such as water heater replacements, reroofing, or minor electrical and plumbing work are often approved over the counter or through instant online permitting, with permits issued the same day or within a few days. Interior remodels that do not involve structural changes typically require a single-discipline review and are commonly approved within 1 to 4 weeks.
More complex residential projects, including home additions and major remodels, usually undergo multi discipline reviews involving building, structural, and other departments, resulting in review times of approximately 2 to 8 weeks. Accessory Dwelling Unit (ADU) projects also require multi-discipline review, although many jurisdictions now offer expedited review programs or dedicated ADU permit lanes. As a result, ADU permit reviews generally take 3 weeks to 3 months, depending on the city and project complexity.
For new custom single family homes, permit applications typically undergo comprehensive reviews covering structural design, site plans, drainage, energy code compliance, and other technical requirements. These projects generally take 1 to 3 months for permit approval. Small commercial projects and tenant improvements often require additional reviews for fire safety and accessibility compliance, with approval timelines ranging from 1 to 4 months. Large commercial and multifamily developments involve multiple reviewing agencies and, in some cases, public review processes, making approval timelines significantly longer typically 3 to 6 months or more.
Two patterns are worth noticing. The jump from "no structural change" to "structural change" is the single biggest timeline cliff in residential work. And anything touching zoning discretion (variances, conditional uses, historic districts, coastal zones) leaves the building department's clock entirely and joins a slower, public one.
What the law requires: Florida, Texas, and North Carolina
Most states leave review speed to local policy. Florida, Texas, and North Carolina are notable exceptions: all three now put enforceable clocks on reviewers. Statutes change, so verify current text before relying on any deadline, and treat this section as orientation rather than legal advice.
Florida
Section 553.792 of the Florida Statutes sets tiered deadlines once an application is complete and sufficient. For most residential permits on structures under 7,500 square feet, the local government must approve, approve with conditions, or deny within 30 business days. Larger structures get a 60 business day clock, and certain master permit pathways run faster still. Miss the deadline and the statute requires the government to refund 10 percent of the permit fee for each late business day. Two practical notes: the clock only starts once the application is deemed complete, and it pauses while you respond to requests for more information. A weak submittal can therefore live outside the statutory clock for months while technically violating nothing.
Texas
Texas has long required municipalities to grant or deny residential building permits within 45 days. The 2023 session added real teeth through House Bill 14: if the regulatory authority misses its prescribed deadline by 15 days, the applicant may bring in a qualified third party (such as a licensed engineer, or an ICC certified inspector for inspections) to complete the review or inspection, the authority cannot charge extra fees for it, and it cannot make you waive these rights as a condition of processing. In slow markets, that third party pathway has become a genuine schedule tool rather than a threat on paper.
North Carolina
Chapter 160D of the General Statutes governs local review. Under Section 1110, when a local government reviews residential plans for one and two family dwellings, the initial review must happen within 15 business days of submission, and if it slips past 20 business days the government must refund 10 percent of the permit fee per late business day, up to 10 days. Section 1110.1 adds a broader 45 day plan review timeline with a 10 day clock for re reviews after resubmission, and creates an independent third party review pathway with a compliance certification requirement.
What the statutes do and do not buy you
A theme runs through all three: the law disciplines the government's rounds, not your project's total journey. Every statute starts counting at a complete and sufficient application, and every statute tolls while corrections sit on your desk. The legal clocks reward exactly one behavior, which is submitting a package so complete that round one is the only round.
How to compress your timeline
The levers below are ordered by leverage, not effort.
Make round one your only round. The majority of corrections letters cite omissions rather than design errors: missing energy forms, unlabeled setbacks, absent structural calcs. Building the submittal to the jurisdiction's specific checklist, before submitting, is the highest return hour in the entire schedule. This is the core of our permit set preparation, and it is why we research the jurisdiction before we draft. For what belongs in that package, see What Is a Permit Set?
Map the pathway before you commit the design. Different scopes trigger different processes, and sometimes a small design choice (square footage thresholds, height, structural scope) moves a project from a slow lane to a fast one. A permit pathway analysis identifies which reviews, agencies, and clocks your project will actually face, while the design can still adapt to the answer.
Use the preapplication meeting. Many departments will sit down before submittal and tell you exactly what they will look for. Treat it as a free preview of the corrections letter. Arriving with organized drawings and pointed questions is what makes the meeting pay; that preparation is exactly what preapplication meeting prep covers.
Answer corrections fast and completely. When a comments letter arrives, the clock is yours until you respond. A point by point written response, with every comment either resolved on the drawings or explained, is what gets a resubmittal approved instead of recycled. Our city comments response service exists because a sloppy response simply purchases another round.
Ask about expedited review. Many jurisdictions sell a faster lane for a surcharge, and Florida law requires local governments to publish an expedited processing policy. Where offered, it typically compresses the department's round time, which multiplies nicely with a submittal that needs only one round.
Know your third party rights. In Texas, and for plan review in North Carolina, statute gives you an alternative reviewer when the government cannot perform. Invoking it requires meeting the qualification and certification rules, but it converts an open ended wait into a controllable one.
Frequently asked questions
How long does a building permit take for a remodel? Interior remodels without structural changes often clear in one to four weeks; once structural work enters the scope, plan for two to eight weeks of review. Submittal completeness is the variable you control.
Why is my permit taking so long? The usual suspects, in order: the application sat in intake as incomplete, the project is cycling through corrections rounds, a secondary agency (fire, utilities, environmental) is the bottleneck, or the department is simply backlogged. Ask which review round and which discipline the package is sitting in; the answer tells you which lever applies.
What is an over the counter permit? A permit simple enough that staff review and issue it during a single visit or instantly online: water heaters, reroofs, like for like equipment swaps, and similar minor scopes. Each department publishes its own eligible list.
Does the permit clock include inspections and the certificate of occupancy? No. The timelines here cover plan review through permit issuance. Construction, inspections, and the certificate of occupancy run on their own schedule afterward, driven by your build pace and inspector availability.
Can I start construction while the permit is pending? No. Work before issuance risks stop work orders, penalty fees, and being required to expose or demolish finished work for inspection. Some jurisdictions offer partial or foundation only permits as a legal way to start early; ask, rather than assume.
Want to compress your timeline? Start with a permit pathway analysis: we map every review your project will face, in your jurisdiction, before you spend a day in the wrong line.
Reviewed and updated June 11, 2026. Statutory deadlines summarized here were verified at publication and may change; confirm current law with your jurisdiction or counsel. Request a proposal and we will scope the pathway for your specific project.