Bolthole Index

Garfield County, Colorado

Building permits, zoning and septic in Glenwood Springs, Colorado

Glenwood Springs, Colorado requires city building permits for new residential construction and for alteration, repair, movement or demolition of buildings, with exceptions for work that does not change structure or layout.1 Glenwood Springs sets its own zoning inside city limits; onsite septic systems in Garfield County go through Garfield County Public Health rather than the city building counter.23

At a glance

Building permits
City building-permit system; nonstructural work may be exempt1
Zoning
City zoning; standards depend on the district24
Septic permits
Garfield County Public Health; application and site evaluation required5
Accessory dwellings
Living or sleeping in an accessory structure requires ADU approval6
Lot size and setbacks
District-specific; identify the city zoning district first47
Residential code
2021 International Residential Code, with city amendments8

Who to call

Building permits

Glenwood Springs Building Department

City building permits and inspection scheduling

970-384-6450

[email protected]

101 W. 8th Street Second Floor Glenwood Springs, CO 81601

Online permits →

Zoning

Glenwood Springs Planning Department

City zoning verification and land-use applications

970-384-6450

101 West 8th Street Glenwood Springs, CO 81601

Online permits →

Septic permits

Garfield County Public Health, Environmental Health Division

Onsite wastewater treatment system applications in Garfield County, including Glenwood Springs

970-625-5200, ext. 8150

2014 Blake Ave. Glenwood Springs, CO 81601

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

Off-grid gear

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

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Do you need a building permit in Glenwood Springs, CO?

Glenwood Springs processes new residential construction through its city building-permit system and requires a building permit for alteration, repair, movement or demolition of a building or structure inside city limits.1 Work that does not alter the structure or layout generally does not require a building permit; ask the city Building Department to classify the proposed work before relying on that exception.1 For covered homes and townhouses, Glenwood Springs has adopted the 2021 International Residential Code with municipal amendments, so a permit application must address the city code rather than Garfield County’s residential code.8

Who handles Glenwood Springs building permits and inspections?

The Glenwood Springs Building Department is the city contact for building applications at 970-384-6450 or [email protected].9 Submit the application through the city’s online customer portal; the Building Department no longer accepts paper applications or applications submitted by email.109 The city lists an inspection line at 970-384-6432.9 Before setting a construction schedule, ask the Building Department which inspections the project needs, when to request them, and what approval is needed before occupancy; we could not confirm a complete city inspection sequence or general certificate-of-occupancy rule.9

Does Glenwood Springs have zoning, lot-size rules and setbacks?

Glenwood Springs has city zoning that regulates how land inside city limits is used and developed.2 Glenwood Springs zoning districts include permitted and special-review uses, plus standards for lot size, height, coverage and setbacks; the parcel’s district determines which standards to use.471112 Ask city Planning for zoning verification and a review of the proposed use before designing a house footprint.13 Glenwood Springs Planning processes land-use applications under the city Development Code and warns that the linked code may omit more recently adopted ordinances, so ask Planning about amendments affecting the parcel.13

How do septic permits work inside Glenwood Springs?

For a Glenwood Springs property using an onsite wastewater treatment system, Garfield County Public Health’s Environmental Health Division handles OWTS permitting.3 Installing, repairing or altering a system requires an application accompanied by a completed site and soil evaluation, system design and site plan.5 The published septic permit fees are $600 for a new installation or major repair, $200 for a minor repair involving a new tank only or for an alteration, and $75 for vault-and-haul.5 Ask Environmental Health about the parcel’s eligibility for onsite treatment before commissioning the design; the county’s rules restrict issuing an OWTS permit where municipal or district sewer service is provided, subject to infeasibility or other authorization.14

Can you live in an RV or tiny home in Glenwood Springs?

We could not confirm a general rule allowing residential RV occupancy on private land in Glenwood Springs, or a city minimum dwelling-size figure; ask city Planning to review the exact parcel and proposed living arrangement before buying an RV or tiny home.13 Glenwood Springs does have an accessory-dwelling approval route: an accessory structure in a residential zoning district cannot be used for living or sleeping unless approved as an ADU meeting the city standards.6 An ADU approval route does not establish permission to occupy an RV; ask Planning separately about a wheeled home, a permanent dwelling and temporary occupancy during construction.613

Building a home in Glenwood Springs: what are the steps?

Use this order to resolve the city land-use questions before preparing a building application.210

  1. Ask Glenwood Springs Planning to verify the zoning district, proposed residential use and applicable dimensional standards.1347
  2. Confirm water and sewer availability with the city; if onsite treatment is proposed, ask Garfield County Environmental Health about OWTS eligibility and the required site evaluation and design.514
  3. Prepare the city’s residential application documents, including architectural, civil, construction-management, drainage, landscape and irrigation, mechanical/electrical/plumbing, site, soils/geotechnical, structural and survey plans.10
  4. Submit through the online customer portal and ask the Building Department about project fees, inspection scheduling and occupancy approval.109

What stays with Garfield County, and what should buyers check?

Glenwood Springs handles city zoning and building permits, while Garfield County Public Health handles onsite septic systems serving city property where onsite treatment is used.213 For land outside Glenwood Springs city limits, use the Garfield County guide: the county’s zoning code applies to unincorporated land.15 Before buying inside the city, ask Planning about floodplain constraints, driveway access and any proposed land division, and ask the Building Department about owner-builder requirements; we could not confirm the city-specific rules for those questions.139 Keep those questions tied to the city parcel rather than assuming county exemptions apply inside Glenwood Springs.152

Watch-outs

  • Glenwood Springs accessory structures are not sleeping quarters unless approved as compliant accessory dwelling units.6
  • A Glenwood Springs building application requires the complete listed document set before submission, including soils/geotechnical and drainage plans.10
  • We could not confirm Glenwood Springs residential RV occupancy or off-grid sanitation permissions; ask city Planning and Garfield County Environmental Health before committing to that plan.1316

Sources

  1. Building Permits (Glenwood Springs), quoted and re-checked
  2. Zoning (Glenwood Springs), quoted and re-checked
  3. Onsite wastewater treatment systems (Glenwood Springs), quoted and re-checked
  4. Zoning (Glenwood Springs), quoted and re-checked
  5. Onsite wastewater treatment systems (Glenwood Springs), quoted and re-checked
  6. All Other Terms Defined (Glenwood Springs), quoted and re-checked
  7. Zoning (Glenwood Springs), quoted and re-checked
  8. International Residential Code Adopted; Penalty for Violation (Glenwood Springs), quoted and re-checked
  9. Glenwood Springs Building Department (cogs.us)
  10. Building Permits (Glenwood Springs), quoted and re-checked
  11. Zoning (Glenwood Springs), quoted and re-checked
  12. Zoning (Glenwood Springs), quoted and re-checked
  13. Glenwood Springs Planning Department (cogs.us)
  14. garfieldcountyco.gov, quoted and re-checked
  15. Complete Land Use and Development Code, quoted and re-checked
  16. Garfield County Public Health, Environmental Health Division (garfieldcountyco.gov)

Written October 10, 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 Glenwood Springs

Glenwood Springs’s own rules

  • Building permitRequired

    Alteration, repair, movement, or demolition of any building or structure inside Glenwood Springs city limits; new residential construction is processed through the city building-permit system.

    • Work that does not alter the structure or layout generally does not require a permit.
    • The city directs applicants to its online customer portal.
    “The Alteration, repair, movement, or demolition of any building or structure inside City limits requires a building permit.”
  • Building code adoptedAdopted (with conditions)

    Detached one- and two-family dwellings and townhouses not more than three stories in Glenwood Springs.

    • The 2021 International Residential Code is adopted except as amended in the municipal code.
    • The adopted appendices include AE, AF, AG, AH, AJ, AM, AQ, and AT.
    • The more restrictive provision governs conflicts with other municipal code provisions.

    IRC edition: 2021 (except as amended in the municipal code)

    “For purposes of regulating the erection, construction, enlargement, alteration, repair, moving, removal, conversion, demolition, occupancy, equipment, use, height, area and maintenance of detached one- and two- family dwellings, and multiple single-family dwellings (townhouses) not more than three (3) stories in height in the City of Glenwood Springs, the International Residential Code, 2021 edition, published by the International Code Council, 4051 West Flossmoor Road, Country Club Hills, Illinois 60478-5795, is hereby adopted except as it is amended in this article.”
  • Local zoningPresent

    Land inside Glenwood Springs city limits.

    • The city identifies 17 separate zone districts and directs users to Articles 070.020 and 070.030 for district standards.
    “Zoning is the division of the city into districts for the purpose of regulating how land is used and developed. Zoning is the primary tool that the City uses to implement the Comprehensive Plan.”
  • Minimum lot sizeDistrict specific (with conditions)

    Minimum lot size in Glenwood Springs zoning districts, including RR Rural Residential, RL Residential Low Density, RM1, RM2, RH, and RT districts.

    • The applicable district must be determined from the city zoning map.
    • The city directs users to Articles 070.020 and 070.030 for specific standards.
    “Each district includes a list of permitted and special review uses, as well as standards for lot sizes, building height, lot coverage and building setback.”
  • SetbacksDistrict specific (with conditions)

    Building setbacks in Glenwood Springs zoning districts.

    • The applicable district must be determined from the city zoning map.
    • Specific standards are in Articles 070.020 and 070.030.
    “Each district includes a list of permitted and special review uses, as well as standards for lot sizes, building height, lot coverage and building setback.”
  • Lot coverageDistrict specific (with conditions)

    Lot coverage in Glenwood Springs zoning districts.

    • The applicable district must be determined from the city zoning map.
    • Specific standards are in Articles 070.020 and 070.030.
    “Each district includes a list of permitted and special review uses, as well as standards for lot sizes, building height, lot coverage and building setback.”
  • Building heightDistrict specific (with conditions)

    Building height in Glenwood Springs zoning districts.

    • The applicable district must be determined from the city zoning map.
    • Specific standards are in Articles 070.020 and 070.030.
    “Each district includes a list of permitted and special review uses, as well as standards for lot sizes, building height, lot coverage and building setback.”
  • Accessory dwellingsAllowed (with conditions)

    Accessory dwelling units inside Glenwood Springs city limits.

    • An accessory structure may not be used for living or sleeping unless approved as an accessory dwelling unit meeting Section 070.030.040(d)(1).
    • The city building department lists Accessory Dwelling Units among its services and requires applicants to apply through the online portal.
    “Unless approved as an accessory dwelling unit that meets the standards of Subsection 070.030.040 (d)(1), Accessory Dwelling Units, such structure shall not be used for living or sleeping quarters in a residential zoning district.”
  • Permit feesPublished (with conditions)

    City system improvement fees associated with residential development and accessory dwelling units inside Glenwood Springs city limits.

    • The cited code classifies system improvement fees by EQR and use type; it is not a complete schedule of every building or planning fee.
    • An accessory dwelling unit is listed at 0.25 EQR.
    • The code states one EQR is estimated as 350 gallons per day of water or wastewater usage.

    accessory dwelling unit system improvement fee: 0.25 EQR · one EQR estimated usage: 350 gallons per day (water or wastewater usage)

    “For purposes of this article, one (1) EQR is estimated as being the equivalent of three hundred fifty (350) gallons per day of water (wastewater) usage. [...] Accessory dwelling unit: a separate, complete, dwelling unit containing separate facilities for sleeping, cooking, and sanitation that is contained within or attached to a detached single-family dwelling, or detached from it on the same property. 0.25 EQR”
  • Permit processPublished (with conditions)

    Residential building-permit applications for new construction of four or fewer units inside Glenwood Springs city limits.

    • Required documents include architectural, civil, construction-management, drainage, landscape and irrigation, mechanical/electrical/plumbing, site, soils/geotechnical, structural, and survey plans.
    • Applications are submitted through the online customer portal.
    “All of these documents must be present in order to submit your application.”

Rules another office applies inside Glenwood Springs

Glenwood Springs 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 septicMixed (with conditions)

    Onsite wastewater treatment systems serving property inside Glenwood Springs city limits where an onsite system is used.

    • Garfield County Public Health regulates and permits OWTS through its Environmental Health Division.
    • CDPHE oversees adoption and enforcement of statewide OWTS rules.
    • The county page states its rule applies to all new, repaired, and altered systems in Garfield County.
    “After January 1, 2020, Onsite Wastewater Treatment Systems (OWTS) in Garfield County are regulated and permitted through Garfield County Public Health’s Environmental Health Division.”
  • Septic permitRequired

    New, repaired, or altered OWTS inside Glenwood Springs city limits when onsite wastewater treatment is used.

    • An OWTS application must include a completed site and soil evaluation, system design, and site plan.
    • Garfield County Public Health Environmental Health Division is the permitting office.
    • The county page lists $600 for a new installation or major repair, $200 for a minor repair or alteration, and $75 for vault-and-haul.

    new installation permit fee: 600 USD · major repair permit fee: 600 USD (new system or STA) · minor repair permit fee: 200 USD (new tank only) · system alteration permit fee: 200 USD · vault and haul permit fee: 75 USD

    “When altering, repairing or installing an OWTS, you will need to submit an Onsite Wastewater Treatment System application, along with a completed site and soil evaluation, system design, and site plan.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Glenwood Springs or Garfield County directly.

  • Owner-builder exemption — Owner-builder exemptions from Glenwood Springs building-permit or contractor requirements.
  • Inspections — Building inspections for construction inside Glenwood Springs city limits.
  • Certificate of occupancy — Certificates of occupancy for buildings inside Glenwood Springs city limits.
  • Minimum dwelling size — Minimum dwelling size inside Glenwood Springs city limits.
  • Living in an RV — Long-term or residential occupancy of recreational vehicles on private or public property inside Glenwood Springs city limits.
9 more unanswered
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • 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 Glenwood Springs publishes no rule on the point, not that none exists. Garfield County’s page lists the county offices to call.

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