Bolthole Index

Galveston County, Texas

Zoning, building permits and septic rules in Dickinson, Texas

Inside Dickinson city limits in Galveston County, Texas, the city requires building permits1 and enforces its own zoning under the Unified Development Code2. Septic permits are a separate matter: the Galveston County Health District oversees septic systems in Galveston County3, so confirm with that office before relying on septic for a lot inside the city.

At a glance

Building permit
Required inside city limits (building, electrical, plumbing, mechanical, pools, signs)1
Zoning
Yes: city zoning under the Unified Development Code, effective August 20242
Lot size and coverage
Set district by district; use the city's calculator and confirm with staff45
Subdivision
Regulated by the city's Unified Development Code6
Septic permits
Galveston County Health District oversees septic systems countywide; confirm for city lots3
Floodplain
City permit required for development in FEMA floodplains7
RV living
RV parks are defined as temporary quarters for recreation or vacation; rules for a single RV on a lot not confirmed8

Who to call

Building permits

City of Dickinson Community Development, Building Permits & Inspections

Plan review, building permits and inspections inside Dickinson city limits

281-337-6259

4403 Highway 3 Dickinson, TX 77539

Online permits →

Zoning

City of Dickinson Community Development, Zoning

Zoning districts, permitted uses and the Unified Development Code inside Dickinson city limits

281-337-6259

4403 Highway 3 Dickinson, TX 77539

Septic permits

Galveston County Health District, On-Site Sewage Facilities

Septic (on-site sewage facility) permits and inspections in Galveston County

409-938-7221

9850 Emmett F. Lowry Expressway Texas City, TX 77591

Contact details are copied from each office’s official page and were checked against it on October 24, 2026.

Off-grid gear

Going off-grid in Dickinson means bringing your own water and power. The kit we’d start with:

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Does Dickinson, Texas have zoning?

Yes. The City of Dickinson zones land inside its limits, and its Unified Development Code went into effect on August 14, 20242. The code merges the zoning ordinance, subdivision regulations and other development standards into one document6. Allowed uses vary by zoning district, and a use the code does not list is prohibited unless the city's Administrator determines it is similar to a listed use9. Zoning covers land use, dimensional requirements, parking and signs10.

Minimum lot area and lot coverage depend on the district and the use you pick, so no single figure applies citywide45. The city's own calculator will show the numbers for a given district, but it says results should be verified with city staff. We could not confirm setbacks, building height, minimum house size, tiny-home or manufactured-home rules for Dickinson; ask Community Development before you buy.

Outside city limits, Galveston County has adopted no county zoning ordinance11, so the city's rules do not follow you onto unincorporated land. Galveston County's own page covers that land: Galveston County.

Do you need a building permit in Dickinson, and who issues it?

Yes. Dickinson requires permits for building construction, mechanical, electrical, plumbing, pools and signs, among other work1. The Community Development Department's Building Permits & Inspections division handles plan review and inspections12. For a project you are unsure about, the city asks you to call Community Development at 281-337-625912.

The city has adopted the 2024 International codes and the 2023 National Electrical Code with amendments, effective October 13, 202612. Applications go through the city's MyGov online portal, and you must register there before applying13. The city publishes a master fee schedule with minimum, non-refundable application fees14.

We could not confirm when a certificate of occupancy is required, whether the city has an owner-builder exemption, or when a residential driveway needs a permit. Ask the department. A state electrician-licensing exemption for owners working on their own home does not exempt you from local building permits15.

How do septic permits work in Dickinson?

The Galveston County Health District, a TCEQ authorized agent, oversees the permitting, installation and operation of septic systems in Galveston County3. The district states that a valid permit and approved plan are required to construct, alter, repair, extend or operate an on-site sewage facility16. Dickinson's building permits and the district's septic permits are separate approvals.

We could not find an official page that states septic rules specifically for land inside Dickinson city limits, and we could not confirm whether the city requires a sewer connection. Call the Galveston County Health District and the city's Community Development Department to learn whether a given lot must connect to city sewer or may use septic.

County soil data suggest conventional drain fields are a poor fit: about 0.4% of Galveston County soils rate as not limited for one17. Expect a site evaluation and often an engineered system. Texas's 10-acre septic exemption is unlikely to matter on a city lot, because it needs a single dwelling on at least 10 acres18.

Can you live in an RV or tiny home in Dickinson?

We could not confirm a Dickinson rule on living in a single RV or tiny home on a private lot. The city's code defines an RV park as a lot with two or more RV sites for the general public, used as temporary living quarters for recreation or vacation8. That definition describes parks; it does not answer whether you can live in an RV on your own lot.

Because Dickinson zones its land, its Unified Development Code, not the county, decides these questions inside city limits2. Call Community Development at 281-337-625910 before you buy a lot with plans for an RV, tiny home or manufactured home. Short-term rentals are also classified under the code, but we could not confirm where they are allowed.

Building a home in Dickinson: the steps, in order

  1. Call Community Development to confirm the lot's zoning district and what the Unified Development Code allows there10.
  2. Check the FEMA floodplain status. Any development in a floodplain without a permit is illegal, and substantial improvements of 50 percent or more of a building's market value need building permits and elevation certificates7.
  3. Ask the Galveston County Health District whether the lot needs a septic permit or a sewer connection16.
  4. Register for the city's MyGov portal and apply for building permits13.
  5. Schedule inspections through Building Permits & Inspections12.
  6. If the driveway meets a state highway, apply to the local TxDOT district office with Form 105819.

What stays with Galveston County, and what to check before you buy

Septic oversight comes from the Galveston County Health District for the whole county3. Floodplain rules for unincorporated land come from the county20, while inside Dickinson the city runs the floodplain permit7. The county's rules for unincorporated land are on the Galveston County page.

Before buying, weigh the numbers for the county: the effective property tax rate is about 1.5%21, and the typical home insurance premium is about $1,529 per year22. The nearest city of 100,000 or more people is about 16 miles from the county center23. Check the lot against the FEMA flood maps before you make an offer.

Watch-outs

  • Dickinson's building-code list changed in October 2026, so ask Community Development which code edition applies to your plans12.
  • County pages and the county's rules describe unincorporated Galveston County; inside Dickinson the city's own zoning and building permits control2.
  • We could not confirm Dickinson's setbacks, height limits, minimum house size or owner-builder rules; call 281-337-625912 before you commit to plans.

Sources

  1. Building Permits & Inspections (Dickinson), quoted and re-checked
  2. Updates to Dickinson's Development Code (Dickinson), quoted and re-checked
  3. Environmental Health Services Fees, quoted and re-checked
  4. Development Yield Calculator (Dickinson), quoted and re-checked
  5. Development Yield Calculator (Dickinson), quoted and re-checked
  6. Updates to Dickinson's Development Code (Dickinson), quoted and re-checked
  7. Development Requirements (Dickinson), quoted and re-checked
  8. Recreational Vehicle (RV) Park (Dickinson), quoted and re-checked
  9. Zoning (Dickinson), quoted and re-checked
  10. City of Dickinson Community Development, Zoning (dickinsontexas.gov)
  11. Texas law on county zoning and building authority
  12. City of Dickinson Community Development, Building Permits & Inspections (dickinsontexas.gov)
  13. Application Forms (Dickinson), quoted and re-checked
  14. 2024 Master Fee Schedule (Dickinson), quoted and re-checked
  15. Exemptions to Electrician Licensing (Texas statewide rule), quoted and re-checked
  16. Galveston County Health District, On-Site Sewage Facilities (gchd.org)
  17. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  18. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
  19. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
  20. Order Applying Residential Building Code Standards to Galveston County, quoted and re-checked
  21. Effective property tax rate: Bolthole Index county data
  22. Typical home insurance premium: Bolthole Index county data
  23. Straight-line distance from the county center to the nearest city of 100,000+ people: Bolthole Index county data

Written October 24, 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.

Answers from the rulebook for Dickinson

Dickinson’s own rules

  • Building permitRequired

    Building construction inside Dickinson city limits.

    • The page expressly includes building construction, mechanical, electrical, plumbing, pools, signs, and additional work.
    “Permits are required for building construction, mechanical, electrical, plumbing, pools, signs, and many more.”
  • Building code adoptedAdopted (with conditions)

    Plan review and construction inside Dickinson city limits.

    • The city page lists the 2018 International Building, Residential, Mechanical, Plumbing, Energy Conservation, and Fuel Gas Codes, and the 2017 National Electrical Code.
    “All plan review and construction shall be based on the following adopted codes:”
  • Local zoningPresent (with conditions)

    Land inside Dickinson city limits.

    • The Unified Development Code went into effect August 14, 2024.
    “The UDC went into effect on Wednesday, August 14, 2024.”
  • Zoning districtsPublished (with conditions)

    Zoning districts and regulated uses inside Dickinson city limits.

    • Uses vary by zoning district.
    • Uses not specifically set forth in the UDC section are prohibited unless the Administrator makes the specified similarity determination.
    “These uses vary for each zoning district, and include but are not limited to:”
  • Minimum lot sizeDistrict specific (with conditions)

    Development subject to Dickinson UDC zoning districts inside city limits.

    • The city calculator requires selection of a zoning district and use type; actual lot-area requirements depend on that selection.
    • The calculator itself says results should be verified with City staff.
    “Click "Calculate" to display the following results, as applicable for the combination of district and development type: 1. Minimum lot area required”
  • Lot coverageDistrict specific (with conditions)

    Development subject to Dickinson UDC zoning districts inside city limits.

    • Calculator results depend on selected zoning district, use type, and any development option.
    • The calculator says results should be verified with City staff.
    “This calculator is intended to assist the user in determining the lot area, density, and building coverage requirements for a proposed development.”
  • Living in an RVTemporary only (with conditions)

    Occupancy in an RV park inside Dickinson city limits.

    • The definition applies to a lot with two or more RV sites made available to the general public.

    minimum RV sites: >= 2 sites (RV-park definition)

    “Recreational Vehicle (RV) Park means any lot upon which two or more recreational vehicle sites are located, established, or maintained for occupancy by recreational vehicles of the general public as temporary living quarters for recreation or vacation purposes.”
  • Subdividing landRegulated (with conditions)

    Subdivision of larger land parcels inside Dickinson city limits.

    • The UDC is the stated one-stop development resource and incorporates subdivision regulations.
    “A Unified Development Code (UDC) is a one-stop resource for anyone wanting to develop land in Dickinson. The UDC updates our Zoning Ordinance, Subdivision Regulations, and other standards into one code.”
  • Building in a floodplainRequired

    Development in FEMA floodplains inside Dickinson city limits.

    • Development includes new construction, filling, grading, and paving.
    • Substantially damaged or improved structures at or above 50 percent of market value require building permits and elevation certificates.

    substantial-damage-or-improvement threshold: >= 50 percent of building market value (Building permits and elevation certificates required)

    “Any development in the floodplain without a permit is illegal and should be reported to the City’s Community Development Department by calling 281-337-2489.”
  • Permit feesPublished (with conditions)

    City permits inside Dickinson city limits.

    • Permit fees are subject to minimum and non-refundable application fees.
    • The published schedule lists reinspection and resubmittal fees and a double fee for work without a permit.
    “Note: All Permit fees are subject to the minimum and non-refundable application fees.”
  • Permit processPublished (with conditions)

    Permit applications inside Dickinson city limits.

    • Customers must register online before applying through MyGov.
    “Customers will need to register online before being able to apply for permits through the portal.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Dickinson or Galveston County directly.

  • Owner-builder exemption — Owner-built residential construction inside Dickinson city limits.
  • Inspections — Building work inside Dickinson city limits.
  • Certificate of occupancy — Occupancy of buildings inside Dickinson city limits.
  • Minimum dwelling size — Dwellings inside Dickinson city limits.
  • Setbacks — Development inside Dickinson city limits.
13 more unanswered
  • Building height
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • Short-term rentals

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Dickinson publishes no rule on the point, not that none exists. Galveston County’s page lists the county offices to call.

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