Zoning, building permits and septic rules in Weston, Texas

Weston’s own rules

• Building permitRequired

  Construction inside Weston city limits

  • Application by email with site plan, engineered stamped plans, fees, and contractor registration
  • Plan review takes a minimum of five full business days

  “a construction permit is required to erect, construct, enlarge, alter, repair, improve, remove, convert, move or demolish any structure within city limits.”

• Building code adoptedAdopted

  Construction inside Weston city limits

  • Includes NCTCOG regional amendments

  building code edition: 2018 ICC codes; 2021 International Fire Code; 2017 NEC

  “the city of weston has adopted the 2018 international building, existing building, residential, plumbing, mechanical, fuel gas, energy conservation, existing building, the 2021 international fire code, and the 2017 national electrical code, as well as all nctcog regional amendments, as the official municipal codes of the city.”

• InspectionsRequired

  Permitted construction inside Weston city limits

  • Permit holder must request the proper sequence of inspections after permit issuance

  “after issuance of a construction permit, it is the responsibility of the permit holder to ensure the proper sequence of inspections are requested.”

• Certificate of occupancyRequired

  Permitted projects inside Weston city limits

  • Permit expires on the 181st day if no inspection or no progress since the last inspection

  permit active window: 180 days (permit expires on day 181 without inspection progress)

  “the city of weston requires that all permitted projects remain active within a 180 day period until the final inspection is complete and a certificate of occupancy (co) is issued.”

• Local zoningPresent

  Land inside Weston city limits (Collin County)

  • Ordinance O-2016-11-02 is the version opened; the city's Ordinances page lists a 2025-02-02 version with changes incorporated, not opened.

  “section 5 compliance required all land, buildings, structures or appurtenances thereon located within the city of weston, texas, which are hereafter occupied, used, erected, altered, removed, demolished or converted shall be used, removed, placed and erected in conformance with the zoning regulations prescribed for the zoning district in which such land or building is located”

• Zoning districtsPublished

  Zoning districts inside Weston city limits

  • Districts seen include RED-1, RED-2, RS 120, RS 84, RS 72, RS 60, MP Mobile Home Park, BN, and Planned Development
  • The city's 2025 zoning version may have eliminated unused districts

  “section 7 zoning districts established 11 section 8 zoning district map 12”

• Permit processPublished

  Construction permits inside Weston city limits

  • Payment by check only; credit cards not accepted
  • Contractors must register with the city; registrations valid one year
  • Application deemed abandoned after 180 days if no permit is issued

  minimum plan review time: >= 5 business days (excluding Fridays when city hall is closed)

  “all documents must be emailed to cityhall@westontexas.com. no paper copies will be accepted.”

Rules another office applies inside Weston

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

• Who permits septicCounty (with conditions)

  On-site sewage facilities for new construction inside Weston city limits; Collin County Development Services issues the OSSF permit

  • Approval also required for a swimming pool if an OSSF is on site
  • Collin County FIPS 48085 inferred from Weston being in Collin County; the county geography enum has no municipality-specific option

  “on-site septic facility (ossf) permit from collin county development services (permit required for new residential/commercial construction, approval required for swimming pool if ossf is onsite)”

• Septic permitRequired

  New residential or commercial construction using an on-site septic facility inside Weston city limits

  • Listed by the City as a building-permit requirement; the permit is issued by Collin County Development Services

  “on-site septic facility (ossf) permit from collin county development services (permit required for new residential/commercial construction, approval required for swimming pool if ossf is onsite)”

Still unanswered

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

• Owner-builder exemption — Owner-builders inside Weston city limits
• Minimum dwelling size — Single-family and agricultural districts inside Weston city limits
• Minimum lot size — Single-family and agricultural districts inside Weston city limits
• Setbacks — Single-family and agricultural districts inside Weston city limits
• Lot coverage — Single-family and agricultural districts inside Weston city limits

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.