Before You Build It: The Baytown Permits Homeowners Commonly Miss

In Baytown, you need a city permit for a new or mostly replaced fence, a pool 24 inches or deeper, a new roof deck, a water heater, a new air conditioner, most electrical and plumbing work, and a driveway. Painting, new carpet, new cabinets and a roof that gets shingles only do not. The city's fee schedule lists a fence permit at $67.00 and a swimming pool permit at $620.00, effective June 1, 2026.

Ask before you buy materials. The surprise in a home project often comes before the first shovel: whether the city expects a permit at all.

The short version

• Permit needed: fence installation or replacement of 50% or more, pools 24 inches or deeper (above ground or in ground), hot tubs and spas, driveways and extensions, room additions, garages, water heaters, heating and A/C installation or replacement, electrical and plumbing work beyond swapping fixtures, new or replacement windows, doors and siding, roof deck work, remodeling, demolition.
• No permit: minor fence repair under 50%, roof shingle replacement only, painting, general landscaping, floor covering, new cabinets and counter tops, adding insulation, changing light fixtures, switches or outlets, replacing plumbing fixtures.
• Fence permit: $67.00. Swimming pool permit: $620.00, which includes mechanical, electrical and plumbing permit fees. Both effective June 1, 2026.
• Building Services is open Monday through Thursday, 7:30 a.m. to 5:30 p.m., and Friday, 7:30 a.m. to 11:30 a.m.

Outside the house

The city's page on residential permits lists these exterior projects as needing a permit: decks more than 30 inches above grade, with or without a cover; porch or patio covers, awnings and carports larger than 200 square feet or attached to the house; storage sheds over 200 square feet; accessory buildings over 200 square feet; lawn sprinkler systems; driveways and driveway extensions; room additions; attached or detached garages; patio enclosures; solar panels; gas line work; concrete sidewalks and concrete patios on private property; and demolition.

These do not need one: general landscaping, painting, wood decks under 30 inches above grade without a cover (they must still be anchored to resist uplift), minor fence repair under 50%, and roof shingle replacement only. Note the last one. Shingles alone are fine. If you touch the roof deck underneath, that is a permit.

Structures taller than one story or larger than 350 square feet must be designed by a state licensed engineer, and the city lists a design wind speed of 150 miles per hour.

The fence rule

"Fence installation or replacement, 50% or greater" needs a permit. "Minor fence repair less than 50%" does not. The line is how much of the fence you touch. Replacing a few boards is a repair. Replacing most of the fence is a replacement. The city measures a fence project by percent, not by dollars.

The page lists a new fence installation in the same line as a big replacement, so treat any new fence as a permit job. If you are near the line, ask the city before you start. The fence permit fee is $67.00.

The pool rule

Pools 24 inches or more in depth need a permit, whether above ground or in ground. The same line lists hot tubs and spas. The city's pool fee is $620.00, and the fee schedule says it includes MEP (mechanical, electrical and plumbing) permit fees. That is about 9 times the fence fee, a difference of $553. The city records we reviewed do not list a separate fee for hot tubs or spas, so ask Building Services what applies. A pool shallower than 24 inches is outside the pool line, but confirm before you assume.

Inside the house

Permits are needed for heating and A/C installation or replacement, water heater installation or replacement, boiler replacement, gas logs and gas lines, fireplaces (wood, pellet or gas), remodeling, garage conversions, electrical and plumbing work other than exchanging fixtures, mechanical work, structural changes, any change in window or door size, sheetrock and demolition. A water heater swap is the one homeowners miss most. It feels like an appliance. The city treats it as a permit job.

No permit for painting, floor covering (carpet, linoleum, tile), wallpapering, replacing plumbing fixtures, replacing cabinets and counter tops, adding insulation, or changing light fixtures, switches and outlets.

Fees, hours and land rules

Fee pages change. The city says its fees are effective as of June 1, 2026. If you read a number from an older source, such as a neighbor or a past year, check it against the current page. A fee quoted before June 1, 2026 may be out of date. Fees in the city's older, 2019 fee schedule were lower, so a neighbor's number from years back will not match.

Building Services and Planning and Development Services are at 2401 Market Street and keep the same hours: Monday through Thursday, 7:30 a.m. to 5:30 p.m., and Friday, 7:30 a.m. to 11:30 a.m. The city's residential permit page does not walk through an application, but its Building Permits page does; see the section on how to apply. If you are not sure what to bring, call or stop by Building Services before you start.

Permits are one part of the city's rules. The city adopted a new Unified Land Development Code in 2025, and the Planning and Zoning page says it is available online. The city also keeps the 2014 version of the code on its site as a PDF, so check that you are reading the current one.

How to apply, and two other permits

The City of Baytown takes building permit applications through its Citizen Self Service portal. In the portal you can submit an application, pay fees, check its status, and view and schedule inspections. The steps are to log in or register a user account (you need a username and password to save your progress and get updates), apply for a professional license if you are a contractor, and then apply for the permit. Look over the permit types first so you choose the right one. The city also posts a residential checklist, a commercial checklist and a sign checklist as PDFs, and a page on how to qualify to have permit fees waived.

Two other permits come up often. Any alarm that can signal the police or fire department, at a home or a business, needs a city permit, and failing to get one is a misdemeanor with a fine of up to $500. A company the city hired, PM AM Corporation, handles the alarm registrations, billing and false-alarm fines, and you apply online. And the Fire Marshal's Office inspects commercial businesses, as well as private day care facilities and foster homes that need a state license. Its page also lists the outdoor event and temporary food vendor permit and the mobile food truck permit.

Before you dig or sign

Call 811 before any digging so the utility lines are marked. If your neighborhood has a homeowners association, get its approval too. The city's permit does not replace it, and the deed restrictions on your lot can be stricter than the city.

Homes in Baytown

The median year a Baytown home was built is 1981, in the 2020-2024 Census survey. That means most houses are old enough to need a roof, a water heater, an air conditioner and a fence replaced, which is why these permits come up so often. The median value of an owner-occupied home is $197,300, 52.3% of housing units are owner-occupied, and the survey estimates 30,964 households.

Questions to ask before you build

• Is this a new fence, or a replacement or repair, and how much of it am I touching?
• Will my pool be 24 inches or more in depth?
• Does the fee I was quoted match the current fee page, effective June 1, 2026?
• Are there land development rules or deed restrictions for my lot?

Businesses and building owners have two more water rules to know: licensed testing of backflow devices and grease control for kitchens. See backflow tests and grease rules. If you live in Mont Belvieu, its permits are separate; see Mont Belvieu permits.

Two more offices are part of many projects. The Fire Marshal's Office inspects businesses, food trucks and event booths; see Fire Marshal inspections and permits. Work in a flood zone has extra rules and its own permit; see permits in a Baytown flood zone.

Sources

• City of Baytown: When Is a Residential Permit Required (https://baytown.org/970/When-is-a-Residential-Permit-Required)
• City of Baytown: Building Permit Fees (https://www.baytown.org/822/Building-Permit-Fees)
• City of Baytown: Building Fee Schedule, 2019 revision (https://www.baytown.org/DocumentCenter/View/3109/Building-Fee-Schedule-PDF)
• City of Baytown: Planning and Zoning (https://baytown.org/191/Planning-and-Zoning)
• City of Baytown: Building Services directory (https://www.baytown.org/m/directory/department?did=88)
• U.S. Census Bureau: QuickFacts, Baytown city, Texas (https://www.census.gov/quickfacts/fact/table/baytowncitytexas/PST045225)
• U.S. Census Bureau: Median year structure built, ACS 2024 (https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US4806128)
• City of Baytown, Building Permits (Citizen Self Service portal, steps, checklists): https://www.baytown.org/507/Building-Permits
• City of Baytown, Permits (alarm permit, fines): https://www.baytown.org/476/Permits
• City of Baytown, Inspections (Fire Marshal's Office permits and inspections): https://www.baytown.org/636/Inspections