A Houston office build-out permit is listed by the City at 15 business days of review, but most companies should plan on 6–12 weeks from complete drawings to permit in hand, and 5–9 months from lease signing to move-in. The gap comes from correction rounds, separate fire sprinkler and fire alarm reviews, landlord sign-offs and the final inspections that lead to a certificate of occupancy.
We get this question from almost every office tenant in Houston, usually after the lease is signed and the move-out date at the old space is already fixed. The 15 days are real. They are just 1 piece of a longer chain. This article walks that chain in order, so you can see where the weeks go and which ones you can control. It is the kind of work we plan as part of our tenant improvement service, and every number here is a planning range, not a quote.
Key takeaways
- 15 business days is 1 review cycle. Houston's Buildout and Commercial Remodel permits both list 15 business days. Most office plans go through 2 cycles, sometimes 3.
- Your path depends on the space. First-time build-outs go through full plan review. Small second-generation remodels may qualify for the City's faster One-Stop walk-through.
- Fire protection adds its own steps. Moving sprinkler heads or adding alarm lights means separate drawings by licensed fire protection contractors.
- The certificate of occupancy is the finish line. In Houston you need one before your team can occupy a lease space, so it belongs on your schedule from day 1.
- The fastest weeks are the early ones. A test fit, early landlord review and a complete drawing set save more time than any follow-up call to the City.
What does "15 business days" actually cover?
The Houston Permitting Center lists a Buildout Permit for building out empty space in a commercial building, and a Commercial Remodel Permit for remodeling or converting existing space. Both show a processing time of 15 business days. That is about 3 calendar weeks, and it covers 1 round of plan review once your drawings are uploaded.
Plan review means City staff read your drawings and check them against the building code. In Houston that is the 2021 City of Houston Building Code, which is the 2021 International Building Code with local changes. Reviewers in each discipline (building, structural, electrical, mechanical, plumbing, fire) can return comments. If any of them do, your team corrects the drawings and resubmits, and a new review cycle starts.
So the honest answer to "how long does the permit take?" is: 15 business days per cycle, times the number of cycles, plus the time your team takes to answer comments. On a clean office set we usually see 2 cycles. On a set that was rushed, or one with a medical, lab or large IT component, 3 is common.
What the 15 days do not include
They do not include the weeks before submittal: lease review, the test fit, construction drawings and the landlord's own review. They do not include the weeks after the permit: building, inspections and the certificate of occupancy. Those are where most of the calendar actually goes.
How long from lease signing to move-in?
Here is the whole sequence for a typical Houston office build-out of about 5,000–15,000 sq ft in a multi-tenant building. The ranges assume an owner who answers questions quickly and a landlord who reviews drawings within a couple of weeks.
- 012–4 weeks
Test fit and lease review
Confirm the space fits your team, the budget and what the landlord will build
- 024–8 weeks
Construction drawings
Architecture and MEP engineering drawn together, plus landlord review
- 033–6 weeks
City plan review, cycle 1
15 business days listed, plus intake and routing
- 042–5 weeks
Corrections and cycle 2
Answer comments, resubmit, second review
- 058–14 weeks
Build-out
Walls, ceilings, lights, air, sprinklers, finishes
- 062–4 weeks
Inspections and occupancy
Trade, fire and building finals, then the certificate of occupancy
Planning ranges, not a project quote. Timing varies with owner decisions, project complexity, and jurisdiction workload.
Notice that the City's review is only 5–11 weeks of a 21–41 week chain. The rest is drawings, building and inspections. That is why the best way to shorten a build-out is almost never "push the City." It is to start the drawings earlier and submit a set that does not need a third cycle.
Where the time hides
Long lead items can also set the move-in date. New rooftop air units, electrical panels and some door hardware can take 8–16 weeks to arrive. If the build-out needs any of them, they should be identified during the drawings, not after the permit is issued.
Which permit path is your office on?
Not every office build-out goes through the same door at the Permitting Center. Which path you are on depends mostly on 2 things: whether the space has been built out before, and how big and complex the work is.
First-generation space: full plan review
If the space is a "cold shell" (bare walls, no ceilings, no offices) it is a first-time build-out. In Houston that goes through full commercial plan review under the Buildout Permit, with drawings uploaded online. There is no shortcut here. The City's own One-Stop qualifications say first-time build-outs of any occupancy are not reviewed in One-Stop.
Second-generation space: maybe One-Stop
If you are reworking an existing office, the scope is smaller and nothing complex is involved, the Commercial One-Stop section may review it as a walk-through. For business occupancies (offices) it covers remodels where the work area totals 2,500 sq ft or less, or up to 5,000 sq ft when a separate electrical plan review is done. It is meant for projects that need no more than a 30-minute review.
The list of exclusions is long and worth reading before you count on it. One-Stop will not review plans that need Fire Marshal or Health review, new or replaced electrical panels, UPS systems (battery backup power), computer rooms, or projects that add more than 200 amps to the lease space without a separate electrical review. And One-Stop does not issue certificates of occupancy.
| Question | Commercial One-Stop | Full plan review (Buildout or Remodel permit) |
|---|---|---|
| Size of work | Up to 2,500 sq ft, or 5,000 sq ft with a separate electrical review | No size limit |
| First-time build-out | Not allowed | Yes, this is the path |
| Fire Marshal review needed | Not allowed | Routed as part of the review |
| How it is reviewed | Walk-through review of a minor project | Drawings uploaded online, 15 business days per cycle |
| New electrical panel or computer room | Not allowed | Allowed |
| Certificate of occupancy | Not issued here | Handled through the occupancy inspection process |
If you are not sure which path you are on, ask before the drawings are finished. A set drawn for One-Stop that turns out to need full review loses weeks.
Why does a simple office plan go to so many reviewers?
Owners are often surprised that a floor plan with a few new offices comes back with comments from 4 or 5 different reviewers. The reason is that every new wall moves something else. A new office needs sprinkler coverage, a light, a switch, an outlet, air supply and return, and sometimes an alarm light. A new restroom needs plumbing, ventilation and an accessible layout. Each of those changes has its own reviewer.
Ask your design team for a 1-page list of every system the build-out touches before drawings start: walls, ceilings, lights, air, sprinklers, fire alarm, plumbing, power, data, doors and hardware. Anything on that list is something a reviewer will look at. Surprises usually come from the items nobody wrote down.
Sprinklers and fire alarm
Moving walls almost always means moving sprinkler heads, because each room needs coverage. Adding a conference room or restroom often means adding horns and flashing lights for the fire alarm. In Texas this work is designed and permitted by licensed fire sprinkler and fire alarm contractors, and in Houston it is reviewed for the Fire Marshal. These drawings often lag the building set by 2–4 weeks if nobody pushes them, and the building permit can wait on them.
Accessibility
Texas has its own accessibility rules, the Texas Accessibility Standards, run by the Texas Department of Licensing and Regulation. Under the Architectural Barriers program, projects with an estimated construction cost of $50,000 or more must be registered with TDLR and reviewed by a Registered Accessibility Specialist (a state-licensed inspector), with an inspection after construction. Most office build-outs reach that amount. We cover the details in our article on TDLR accessibility review.
What happens inside the City's review, step by step?
Once the drawings are ready, the City side has a fairly fixed order. Click through the stages to see what happens at each one and how long it tends to take.
Stage 01 of 08 · 1–3 days
Apply online
create or log in to an iPermits account and fill in the building permit application, with the commercial prerequisite checklist
Stage 02 of 08 · 1–3 days
Pay and upload
pay the plan review fee, then upload the drawings when the City emails the invitation
Stage 03 of 08 · 3–4 weeks
Plan review
reviewers in each discipline check the drawings against the code; listed at 15 business days
Stage 04 of 08 · 1–2 weeks
Comments
any reviewer can return comments; your team answers each one in writing and on the drawings
Stage 05 of 08 · 2–3 weeks
Second review
the City checks the corrections; most clean office sets are approved here
Stage 06 of 08 · 1–3 days
Permit issued
the permit is valid for 6 months and must stay on site; work can start
Stage 07 of 08 · 6–14 weeks of building
Inspections
trade, fire and building inspections, scheduled by the licensed contractors and your general contractor
Stage 08 of 08 · 1–2 weeks
Certificate of occupancy
final inspections pass and the certificate is issued for the space
Planning ranges, not a project quote. Timing varies with owner decisions, project complexity, and jurisdiction workload.
The permit itself is valid for 6 months once issued, according to the City's permit pages. Work that stalls for long stretches can put that at risk, so the construction schedule should start as soon as the permit is in hand.
What usually stretches the timeline?
Most delays on Houston office build-outs come from a short list of causes. Some add a few days. Others add a full review cycle, which is 3–4 weeks every time.
Correction rounds
The biggest single lever is the number of review cycles. Every extra cycle costs 3–5 weeks. Comments usually come from missing information, not bad design: exit paths that are not shown, sprinkler notes left off, an older restroom not shown as accessible, or electrical loads with no math behind them. A set that answers those questions before it is submitted is the one that gets approved on the second look instead of the third.
The landlord
In a multi-tenant office building, the landlord usually has to approve your drawings before you submit to the City, and sometimes has its own building rules for contractors, work hours and shutdowns of the sprinkler system. If your lease does not say how long the landlord has to respond, ask. Our article on tenant improvement allowance or turnkey build-outs explains why the lease wording matters so much here.
“The City reviews the drawings you send.
Your schedule depends on what you send.”
When can your team actually move in?
In Houston, a certificate of occupancy must be obtained before a commercial building or an individual lease space is occupied, and again when the occupancy type changes. For a build-out, it comes at the end: once the trade, fire and building inspections have passed, the space can receive its certificate. On the City's own page, the certificate stays valid unless the square footage, the number of people the space is designed for, or the use changes.
That last point matters for growing companies. If you later expand into the suite next door, or turn a storage room into a training room that holds many more people, a new certificate may be needed. Plan for it when you plan the expansion.
Furniture, cabling and the real move-in date
Furniture, data cabling and security systems usually go in during the last 2–4 weeks of construction. Coordinate those deliveries with the inspection dates. A cabinet installer blocking an inspector's path to a ceiling, or furniture covering an outlet the inspector needs to see, can push the final inspection by a week.
How do you get a permit on the first or second try?
The fastest Houston office permits we see share a few habits. None of them are complicated. They are just done early. If you have not yet signed the lease, our office test fit guide covers the step that comes before all of this.
- Test fit approved by you and the landlord
- Lease says how long the landlord has to review drawings
- Confirmed which permit path the space is on
- Architecture and MEP drawings coordinated in 1 set
- Sprinkler and fire alarm contractors brought in during drawings
- Existing restroom checked for accessibility
- Electrical load checked against the panel
- Long lead equipment ordered or reserved
- TDLR project registered if $50,000 or more
- Commercial prerequisite checklist filled in
The one-team advantage
With us, architecture and engineering come from one team. Our structural and MEP engineering is part of the same agreement, so the drawings arrive at the City as 1 coordinated set rather than several pieces that have to be matched up after the comments come back. That is usually the difference between 2 review cycles and 3 on an office build-out.
Frequently asked questions
The City lists 15 business days of review for both the Buildout Permit and the Commercial Remodel Permit. Most office projects need 2 review cycles, so plan on 6–12 weeks from complete drawings to permit in hand. Small, simple remodels that qualify for One-Stop can move faster.
Yes. New walls, ceilings, lighting, air, plumbing and sprinkler changes all need permits, reviewed against the City's building code. Only very minor work, such as painting or new carpet, is typically exempt. When in doubt, check with the Permitting Center before work starts.
It is a walk-through review for minor commercial projects. For offices it covers remodels of 2,500 sq ft or less of work area, or up to 5,000 sq ft with a separate electrical review. It does not review first-time build-outs, projects that need Fire Marshal review, or new electrical panels, and it does not issue certificates of occupancy.
In Houston, a certificate of occupancy is required before an individual lease space is occupied, and when the occupancy type changes. A build-out usually ends with one. Expanding the space or changing how many people it is designed for can require a new certificate later.
Because an office build-out touches many systems at once. New walls move sprinkler heads, lights, air and the exit path, and each of those has its own reviewer. Comments are normal. The goal is to answer all of them in 1 round.
In Texas, projects with an estimated construction cost of $50,000 or more must be registered with TDLR under the Architectural Barriers program, reviewed by a Registered Accessibility Specialist and inspected after construction. Most office build-outs reach that amount. Smaller projects still have to meet the accessibility standards.
Generally no. Building work, including framing and electrical, should wait for the permit, and inspectors will look for it on site. Demolition and some early steps can sometimes be permitted separately, so ask your design team whether splitting the work makes sense on your schedule.
With us, architecture and engineering come from one team, and our structural and MEP engineering is part of the same agreement. We prepare the permit set, answer reviewer comments and stay involved through construction. Your general contractor builds the work and schedules inspections.
Planning an office build-out in Houston?
If you are about to sign an office lease in Houston, or you already have and the move-in date is fixed, send us the address, the suite size and your target date. We will tell you which permit path the space is likely on, how many weeks the plan needs and where the risks are, before the clock gets tight. Contact us and we will start with the questions that move the date the most.
