Bolthole Index

Collin County, Texas

Zoning, building permits and septic rules in Blue Ridge, Texas

Blue Ridge, Texas, in Collin County, has its own zoning ordinance covering the whole city1. Residential building permits are submitted to Blue Ridge City Hall, and inspections go through a contractor the city names2. Collin County's no-zoning answer applies only outside city limits3. We could not confirm who issues septic permits inside the city, so ask City Hall before you buy.

At a glance

Zoning
Yes: city zoning ordinance covers the whole city1
Zoning districts
A-1 Agricultural, R-1 Single-Family, R-2 Multi-Family, R-3 Manufactured Housing, B-1, B-2 and N-14
Building permit
Submitted at Blue Ridge City Hall; checklist required2
Certificate of occupancy
Required before utility hookups56
Minimum lot (A-1)
2 acres7
Manufactured homes
Allowed in the R-3 district; mobile homes are not8
Septic inside city limits
County handles it outside city limits; inside the city, ask City Hall9

Who to call

Building permits

City of Blue Ridge City Hall (permits)

Residential building permit applications and contractor registration inside Blue Ridge city limits

972-752-5791

permits@blueridgecity.com

108 W James St, Blue Ridge, TX 75424

Septic permits

Collin County Development Services (On-Site Sewage Facilities)

Septic permits for property outside city limits in Collin County; ask whether it also covers your address

(972) 548-5585

4690 Community Ave., McKinney, Texas, 75071

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 Blue Ridge means bringing your own water and power. The kit we’d start with:

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Does Blue Ridge, Texas have zoning?

Yes. The City of Blue Ridge adopted a zoning ordinance that divides the entire city into districts1. The districts are A-1 Agricultural, R-1 Single-Family, R-2 Multi-Family, R-3 Manufactured Housing, B-1 Local Business, B-2 General Business and N-1 Non-Taxable Entities4.

Rules vary by district. In the A-1 agricultural district the minimum lot is 2 acres7, setbacks are 25 feet front, 10 feet rear and 15 feet side10, buildings cannot cover more than 25 percent of the lot11, and height tops out at 35 feet12. In R-1, lots need at least 7,500 square feet and 75 feet of average width13, with up to 50 percent lot coverage14.

Manufactured housing is allowed in the R-3 district, while mobile homes are not permitted there8. We could not confirm rules for RVs, camping, tiny homes or minimum dwelling size inside Blue Ridge; ask City Hall at 972-752-57912.

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

Blue Ridge City Hall takes residential permit applications, and each application must come with the matching checklist2. The city's permit page says it has adopted the 2018 International Building Codes and the 2020 National Electrical Code, and that it uses Bureau Veritas for inspections2. The zoning ordinance also requires a building permit for work in newly annexed territory15.

Before you occupy a building or hook up permanent water, sewer, electric or gas, the City Building Official must issue a certificate of occupancy and compliance56. We could not confirm the city's owner-builder rules or fee schedule; ask City Hall at permits@blueridgecity.com2.

How do septic permits work inside Blue Ridge?

We could not confirm who administers septic permits inside Blue Ridge city limits. Collin County Development Services issues septic permits for property outside city limits, and the county page says another authorized agent may handle permits inside a city9. Texas requires a permit and approved plan to build, alter or repair a septic system, and local programs can be stricter than state minimums16. Call Blue Ridge City Hall first, then Collin County Development Services at (972) 548-558517.

Building a home in Blue Ridge: the steps, in order

  1. Confirm the zoning district of your lot and whether it is inside city limits, with City Hall2.
  2. Ask City Hall who handles septic permits for your address; the county does so outside city limits9.
  3. Submit the residential permit application and checklist at City Hall2.
  4. Schedule inspections through the city's inspection contractor2.
  5. Obtain the certificate of occupancy before permanent utility connections6.

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

Land outside Blue Ridge city limits follows Collin County's rules. Unincorporated Collin County has no zoning, with a few exceptions3, but a county permit is required for projects that disturb ground or add footprint18. A parcel on the edge of town may sit in either place, so confirm which with City Hall2.

Septic soils are a concern: only about 1% of soils in Collin County rate as not limited for a conventional drain field, so expect a site evaluation or an engineered system19. Collin County's effective property tax rate is 1.7%20.

Watch-outs

  • Collin County's no-zoning answer does not apply inside Blue Ridge, where the city's own ordinance controls land use1.
  • A certificate of occupancy must be issued before permanent water, sewer, electric or gas connections6.
  • We could not confirm septic authority, well rules, RV rules or fees inside city limits; ask Blue Ridge City Hall at 972-752-57912.

Sources

  1. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  2. City of Blue Ridge City Hall (permits) (blueridgecity.municipalimpact.com)
  3. collincountytx.gov, quoted and re-checked
  4. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  5. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  6. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  7. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  8. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  9. Development Services: On Site Sewage Facilities, quoted and re-checked
  10. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  11. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  12. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  13. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  14. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  15. Exhibit 9A Zoning Ordinance - City of Blue Ridge, TX (Blue Ridge), quoted and re-checked
  16. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
  17. Collin County Development Services (On-Site Sewage Facilities) (collincountytx.gov)
  18. Development Services Frequently Asked Questions, quoted and re-checked
  19. 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
  20. Effective property tax rate: 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 Blue Ridge

Blue Ridge’s own rules

  • Building permitLimited

    Buildings and structures in territory newly annexed into Blue Ridge city.

    • The quoted rule is expressly limited to newly annexed territory.
    • The ordinance requires application for and issuance of a building permit before the listed work proceeds.
    “No person shall erect, excavate, construct, or proceed or continue with the erection or construction of any building or structure or add to, enlarge, move, or extend or demolish any buildings or structures or cause the same to be done in any newly annexed territory to the City of Blue Ridge without first applying for and obtaining a building permit.”
  • Certificate of occupancyRequired

    Land use and buildings erected, altered, or extended inside Blue Ridge city limits.

    • A certificate is issued by the City Building Official.
    • A certificate application accompanies a building-permit application, or may be made directly where no building permit is needed.
    • No permanent water, sewer, electrical, or gas utility connection may be made before the certificate is issued.
    “No land shall be occupied or used and no building hereafter erected, altered, or extended until a certificate of occupancy and compliance shall have been issued by the City Building Official”
  • Local zoningPresent (with conditions)

    Land inside Blue Ridge city limits.

    • Uses, structures, height, lots, and yards must conform to the applicable zoning district regulations.
    “The purpose of this Ordinance is to zone the entire area of the City of Blue Ridge into districts”
  • Zoning districtsPublished (with conditions)

    Zoning districts inside Blue Ridge city limits.

    • District boundaries are established by the adopted zoning maps.

    districts: A-1 Agricultural; R-1 Single-Family; R-2 Multi-Family; R-3 Manufactured Housing; B-1 Local Business; B-2 General Business; N-1 Non-Taxable Entities

    “A-1 | AGRICULTURAL DISTRICT R-1 | SINGLE-FAMILY DISTRICT R-2 | MULTI-FAMILY DISTRICT R-3 | MANUFACTURED HOUSING DISTRICT B-1 | LOCAL BUSINESS DISTRICT B-2 | GENERAL BUSINESS DISTRICT N-1 | NON-TAXABLE ENTITIES”
  • Minimum lot sizeDistrict specific (with conditions)

    Lots in the A-1 Agricultural District inside Blue Ridge city limits.

    • A-1 single-family dwellings are on lots of two acres or more.

    minimum lot area: 2 acres (A-1 Agricultural District)

    “The minimum area of a lot in an agricultural zone shall be two (2) acres.”
    One more reviewed finding on this topic
    • District specific (with conditions) — Development lots in the R-1 Single-Family District inside Blue Ridge city limits.
      “The minimum average width of any development lot shall be seventy-five (75) feet. LOT AREA: The minimum area of any development lot shall be seven thousand five hundred (7,500) square feet.”
  • SetbacksDistrict specific (with conditions)

    Structures, except fences, in the R-1 Single-Family District inside Blue Ridge city limits.

    • Rear-yard measurement is from the centerline of an alley, or property line when no alley exists.
    • A wing or extension may be within five feet of the rear lot line if the basic total rear-yard area is maintained.
    • Corner lots have a 15-foot side yard by the side street.

    front yard: 25 feet (R-1)

    “FRONT YARD: The minimum front yard distance from the property line to the building line shall be twenty-five (25) feet.”
    One more reviewed finding on this topic
    • District specific (with conditions) — Structures, except fences, in the A-1 Agricultural District inside Blue Ridge city limits.
      “FRONT YARD: The minimum front yard distance from the property line to the building line shall be twenty-five (25) feet. REAR YARD: The minimum rear yard shall be ten (10) feet. SIDE YARD: The minimum side yard shall be fifteen (15) feet.”
  • Lot coverageDistrict specific (with conditions)

    Lots in the A-1 Agricultural District inside Blue Ridge city limits.

    • Applies to the combined area of principal and accessory buildings.

    maximum lot coverage: <= 25 percent (A-1)

    “LOT COVERAGE: The combined area of all principal building and accessory buildings shall not cover more than twenty-five (25) percent of the total area of the lot.”
    One more reviewed finding on this topic
    • District specific (with conditions) — Lots in the R-1 Single-Family District inside Blue Ridge city limits.
      “LOT COVERAGE: The combined area of the principal building and any accessory buildings shall not cover more than fifty (50) percent of the total area of the lot.”
  • Building heightDistrict specific (with conditions)

    Buildings in the A-1 Agricultural District inside Blue Ridge city limits.

    maximum building height: <= 35 feet (A-1) · maximum stories: <= two and one-half (A-1)

    “HEIGHT LIMIT: A building shall not be over two and one-half stories in height and shall, in no event, exceed thirty-five (35) feet in height.”
    One more reviewed finding on this topic
    • District specific (with conditions) — Buildings in the R-1 Single-Family District inside Blue Ridge city limits.
      “HEIGHT LIMIT: Buildings shall not be over two and one-half stories and shall, in no event, exceed thirty-five (35) feet in height.”
  • Manufactured homesAllowed

    HUD-Code manufactured housing in the R-3 Manufactured Housing District inside Blue Ridge city limits.

    • The ordinance separately prohibits mobile homes in this district, except for preexisting homes subject to its nonconforming-use rules.
    “USES PERMITTED: Any use unconditionally permitted in the foregoing “R-1” district and including Manufactured Housing. Mobile homes are not permitted under any circumstances; those already in place are subject to the conditions of Section 16 [17] of this ordinance.”
  • Mandatory utility hookupConditional

    Permanent water, sewer, electrical, and gas utility connections for land and buildings inside Blue Ridge city limits.

    • This is not an availability-or-distance connection mandate.
    • A certificate of occupancy and compliance must first be issued by the City Building Official.
    “No permanent water, sewer, electrical or gas utility connections shall be made to the land, building or structure until and after a certificate of occupancy and compliance has been issued by the City Building Official.”
  • Permit processPartial

    Certificate-of-occupancy process for land and buildings inside Blue Ridge city limits.

    • The source publishes only this portion of the process in the retrieved passage.
    • The city acts after written notification that the building or premises is ready for occupancy.
    “Application for a certificate of occupancy and compliance shall be made with the application for a building permit or may be directly applied for where no building permit is necessary and shall be issued or refused in writing as soon as practical after the City has been notified in writing that the building or premises is ready for occupancy.”

Still unanswered

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

  • Owner-builder exemption — Owner-built dwellings inside Blue Ridge city limits.
  • Building code adopted — Construction inside Blue Ridge city limits.
  • Inspections — Construction inside Blue Ridge city limits.
  • Minimum dwelling size — Dwellings inside Blue Ridge city limits.
  • Living in an RV — RV occupancy on private land inside Blue Ridge city limits.
13 more unanswered
  • Camping on your land
  • Tiny homes
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees

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 Blue Ridge publishes no rule on the point, not that none exists. Collin County’s page lists the county offices to call.

← All of Collin County: county rules, score and offices