Bolthole Index

Harris County, Texas

Building permits, zoning and land rules in South Houston, Texas

South Houston, Texas has city building permits and zoning; start with the South Houston Inspection Department for construction inside city limits.123 South Houston is in Harris County, but the county’s no-zoning rule applies to unincorporated land.4 City sewer connection is required when the ordinance’s availability and notice conditions apply; for a proposed septic system, ask TCEQ’s OSSF Program to confirm the permitting authority for the address.56

At a glance

Building permits
City building application covers new construction, alterations and repairs17
Zoning
City zoning applies inside South Houston2
Sewer and septic
Sewer connection required under city availability and notice conditions; septic generally needs a state-compliant permit and approved plan58
Small homes
R5C: buildings below 720 square feet, but at least 500, need a special City Council permit in eligible sections9
Accessory dwellings
Accessory buildings cannot be used as dwellings10
Minimum lot size
R1A single-family lots: 60 feet wide and 6,600 square feet11
Application fee
$15 building application fee, with a separate permit fee12

Who to call

Building permits

South Houston Inspection Department

City building-permit applications and the starting point for parcel zoning, inspections and related construction forms

713-947-7700, ext. 121

[email protected]

1018 Dallas St.

Codes & inspections

South Houston Inspection Department — New-Construction Checklist

New-construction application checklist and inspection requirements before utility release and occupancy

713-947-7700 ext. 120/121

Also useful

South Houston Water & Sewer

Municipal water and sewer contact for questions about service at a proposed building address

713-944-2027

206 Michigan South Houston, TX 77587

Septic permits

TCEQ OSSF Program

OSSF information and questions; ask this program to identify the permitting authority for a South Houston city address

512-239-3799

[email protected]

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

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

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Do you need a building permit in South Houston, TX?

South Houston’s building-permit application covers alterations, repairs and new construction, and the city’s new-construction checklist requires a permit and passed inspections before utility release and occupancy.17 South Houston has adopted the 2015 International Residential Code, including appendices, for the residential buildings covered by the ordinance.13

The South Houston building application requires plans and specifications and conformity with city ordinances.1 Budget for the $15 application fee plus a separate building-permit fee; the application fee is not the total permit cost.12 Ask the Inspection Department which building and trade applications your project needs before arranging construction.31

Who handles building permits and zoning questions in South Houston?

The South Houston Inspection Department is in City Hall at the corner door, 1018 Dallas St.; the permit-clerk contact is 713-947-7700, ext. 121.3 Start there with the property address, proposed use and building plans, and request confirmation of the zoning district and applicable yard requirements.213

South Houston publishes building, electrical, plumbing, mechanical, site-work, driveway and mobile-home application materials, as well as a certificate-of-occupancy form.1 The new-construction checklist says inspections must be made and passed before utilities are released and before occupancy of the home or business.7 Ask the Inspection Department for the project’s inspection sequence and whether a separate certificate of occupancy is needed.31

Does South Houston have zoning, lot-size rules and setbacks?

South Houston has city zoning: uses of premises and buildings inside city limits must meet the zoning ordinance’s minimum standards.2 South Houston’s R1A district requires a single-family lot width of at least 60 feet and a lot area of at least 6,600 square feet, with 6,600 square feet per single-family dwelling.11 Treat those as R1A requirements, rather than a citywide lot-size answer.11

South Houston also prohibits using accessory buildings for dwelling purposes, so do not plan to convert a backyard accessory building into living quarters without addressing that prohibition.10 Ask the Inspection Department for the parcel’s district and principal-building setback schedule before choosing a floor plan or placing a building on the lot.23

How do sewer connections and septic permits work inside South Houston?

South Houston requires owners of properties used for human occupancy, employment, recreation or other purposes to connect at their expense when the property abuts a street, alley or right-of-way containing city public sewer, the sewer is within 100 feet of the property line, and official notice has been given; the deadline is 90 days after notice.5 Ask South Houston Water & Sewer about sewer availability at the proposed address before budgeting for septic.514

When public sewer becomes available under the city ordinance, an existing private disposal system must give way to a direct sewer connection, and septic tanks or similar facilities must be abandoned, cleaned and filled as specified.15 Texas generally requires a permit and approved plan to construct, alter, repair, extend or operate an OSSF.8 We could not confirm the septic permitting agency for an address inside South Houston; ask TCEQ’s OSSF Program to identify the responsible office before submitting plans.6

Can you live in an RV or tiny home in South Houston?

We could not confirm a South Houston rule directly authorizing residential RV occupancy or temporary camping on private land; ask the Inspection Department about the proposed use and address before relying on either arrangement.23 South Houston’s small-building rule is district-specific and does not establish a general tiny-home occupancy permission.9

In South Houston’s R5C district, new buildings with 720 square feet of floor area do not need Council action to obtain a permit, but must comply with the Building Code.9 Buildings below 720 square feet, but not below 500 square feet, may be built in some sections only with a special City Council permit for each building.9 An accessory building cannot be used as a dwelling, so a small backyard structure presents a separate restriction.10

Building a home in South Houston: what are the steps in order?

  1. Ask the South Houston Inspection Department to confirm the zoning district, allowed residential use and yard requirements for the address before finalizing the design.23
  2. Ask South Houston Water & Sewer about service availability; the city’s sewer-connection conditions can determine whether private wastewater disposal is an option.514
  3. Prepare the city building application with plans and specifications, and ask which related trade, driveway and site-work applications apply.1
  4. Budget the $15 building application fee separately from the building-permit fee.12
  5. Obtain the required construction permit and arrange city inspections; the new-construction checklist requires passed inspections before utility release and occupancy.7

For land outside South Houston city limits, use the Harris County guide: Harris County requires development permits in unincorporated areas and has no zoning there.164

Watch-outs

  • South Houston’s R1A lot minimum and R5C small-building exception are district-specific; confirm the parcel’s district before buying a lot for a small home.119
  • South Houston subdivision proposals, including manufactured-home parks and subdivisions, must meet the city’s floodplain development-permit requirements.17
  • We could not confirm a South Houston owner-builder exemption from local building permits; ask the Inspection Department before assuming owner-built work bypasses the city application.13
  • We could not confirm the private-well permit rule inside South Houston; ask the Inspection Department to identify the administering office before arranging drilling.3

Sources

  1. Permits / Inspection | South Houston, TX (South Houston), quoted and re-checked
  2. South Houston Code of Ordinances, Appendix A, § 1.3 (South Houston), quoted and re-checked
  3. South Houston Inspection Department (southhoustontx.gov)
  4. oce.harriscountytx.gov, quoted and re-checked
  5. South Houston Code of Ordinances, § 24-41 (South Houston), quoted and re-checked
  6. TCEQ OSSF Program (tceq.texas.gov)
  7. South Houston Inspection Department — New-Construction Checklist (southhoustontx.gov)
  8. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
  9. South Houston Code of Ordinances, Appendix A, § 2.1 (South Houston), quoted and re-checked
  10. South Houston Code of Ordinances, Appendix A, § 6.1 (South Houston), quoted and re-checked
  11. South Houston Code of Ordinances, Appendix A, § 4.1 (South Houston), quoted and re-checked
  12. Permits / Inspection | South Houston, TX (South Houston), quoted and re-checked
  13. South Houston Code of Ordinances, § 6-186 (South Houston), quoted and re-checked
  14. South Houston Water & Sewer (southhoustontx.gov)
  15. South Houston Code of Ordinances, § 24-84 (South Houston), quoted and re-checked
  16. oce.harriscountytx.gov, quoted and re-checked
  17. South Houston Code of Ordinances, § 6-103 (South Houston), quoted and re-checked

Written October 11, 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 South Houston

South Houston’s own rules

  • Building code adoptedAdopted (with conditions)

    One- and two-family dwellings and townhouses not more than three stories in South Houston.

    • The adopted code is the 2015 International Residential Code including appendices.
    • The ordinance regulates design, construction, materials, erection, installation, alteration, repair, location, relocation, replacement, addition, use, and maintenance.

    code edition: 2015 International Residential Code (including Appendices)

    “the 2015 International Residential Code, including Appendices, as published by the International Code Council, and are hereby adopted as the code of the City of South Houston”
  • Local zoningPresent (with conditions)

    Land and buildings inside South Houston city limits.

    • Uses and buildings must comply with the city's Appendix A zoning ordinance minimum standards.
    “1.301 Use of premises and all buildings in the City shall be in accordance with the minimum standards herein established.”
  • Accessory dwellingsProhibited

    Accessory buildings inside South Houston.

    • This claim addresses an accessory dwelling created through use of an accessory building.
    “6.105 Accessory buildings may not be used for dwelling purposes.”
  • Off-grid sanitationLimited

    Private sewage disposal systems inside South Houston.

    • A direct sewer connection is required when public sewer becomes available under § 24-41.
    • Septic tanks, cesspools, and similar facilities then must be abandoned, cleaned of sludge, and filled with clean bank-run gravel or dirt.
    “At such time as a public sewer becomes available to a property served by a private sewage disposal system, as provided in section 24-41, a direct connection shall be made to the public sewer in compliance with said section, and any septic tanks, cesspools, and similar private sewage disposal facilities shall be abandoned, cleaned of sludge and filled with clean bank-run gravel or dirt.”
  • Mandatory utility hookupSewer (with conditions)

    Properties inside South Houston used for human occupancy, employment, recreation, or other purposes.

    • Applies where the property abuts a street, alley, or right-of-way containing a City public sanitary or combined sewer.
    • Connection is required within 90 days after official notice when the sewer is within 100 feet (30.5 meters) of the property line.
    • Connection is at the owner's expense.

    sewer availability distance: <= 100 feet (public sewer within 100 feet of property line) · connection deadline: <= 90 days (after official notice)

    “The owners of all houses, buildings or properties used for human occupancy, employment, recreation, or other purposes, situated within the city and abutting on any street, alley or right-of-way in which there is now located or may in the future be located a public sanitary or combined sewer of the city, is hereby required, at his expense, to install suitable toilet facilities therein, and to connect such facilities directly with the proper public sewer, within ninety (90) days after the date of official notice to do so, provided that such public sewer is within one hundred (100) feet (30.5 meters) of the property line.”
  • Building in a floodplainRequired

    Subdivision development, including manufactured-home parks and subdivisions, inside South Houston.

    • Applies to subdivision proposals and placement of manufactured-home parks and subdivisions.
    “All proposals for the development of subdivisions, including the placement of manufactured home parks and subdivisions, shall meet floodplain development permit requirements of section 6-78; section 6-93; and the provisions of division 5 of this article.”
  • Permit feesPublished (with conditions)

    Building permit applications inside South Houston.

    • The city also publishes a Building Permit Fee List on its official permits page.

    building permit application fee: 15 USD (permit fee is separately shown on application)

    “Total Cost $ Application Fee: $ 15.00 Permit Fee: $”
  • Permit processPartial

    Building permits and related permits inside South Houston.

    • Available process materials include building, plumbing, mechanical, electrical, mobile-home, site-work, driveway, and certificate-of-occupancy forms.
    • Building applications require plans and specifications and state ordinance conformity.
    “Permit, registration, and license forms for the City that are currently available online.”

Rules another office applies inside South Houston

South Houston does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Minimum dwelling sizeSpecified

    New buildings in the R5C zoning district inside South Houston.

    • New buildings under 720 square feet but not under 500 square feet may be constructed in some sections, such as 25-foot lots, only with a special City Council permit for each.
    • All new buildings must comply with the Building Code.

    floor area: >= 720 square feet (no Council action required to obtain permit) · floor area: >= 500 square feet (special City Council permit may be required)

    “New buildings with 720 sq. ft. floor area will not require Council action to obtain a permit, but they must comply with the building Code. New buildings less than 720 sq. ft., but not less than 500 sq. ft. may be constructed in some sections (such as 25' lots), but a special permit by City Council is required on each.”
  • Minimum lot sizeSpecified

    Single-family dwellings in the R1A zoning district inside South Houston.

    minimum lot width: >= 60 feet · minimum lot area: >= 6600 square feet · minimum lot area per single-family dwelling: >= 6600 square feet

    “District | Lot Width in Feet | Lot Area | Single-family Dwellings [...] R1A | 60 | 6,600 | 6,600”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask South Houston or Harris County directly.

  • Owner-builder exemption — Owner-built residential construction inside South Houston.
  • Inspections — Building construction inside South Houston.
  • Certificate of occupancy — Occupancy of buildings inside South Houston.
  • Setbacks — Principal single-family residential buildings inside South Houston.
  • Lot coverage — Residential lots inside South Houston.
9 more unanswered
  • Building height
  • Camping on your land
  • Tiny homes
  • Septic permit
  • Septic inspection
  • Well permit
  • 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 South Houston publishes no rule on the point, not that none exists. Harris County’s page lists the county offices to call.

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