Bolthole Index

Garfield County, Colorado

Building permits, zoning and land rules in the Town of Silt, Colorado

For a new home in the Town of Silt, Colorado, start with the town’s residential building-permit application and Community Development Department for building and zoning review.1 Silt is in Garfield County, where Public Health handles septic applications for new, repaired or altered onsite wastewater systems.2 Silt’s typical residential plan review averages 10 weeks, with timing dependent on workload and project complexity.3

At a glance

Residential building permit
Apply through the town; building and planning review are part of the application1
Zoning
Town zoning requirements apply to building placement; identify the parcel’s district1
Plan review
Typical average: 10 weeks, subject to workload and project complexity3
Building-permit fees
Annual fee schedule adopted by the Board of Trustees4
Septic permits
Garfield County Public Health; new installation application fee $6002
Agricultural-Rural setbacks
Barns, paddocks and stalls: at least 40 feet from all property lines, with screening5
Flood hazards
Stricter town-code or residential-code provisions apply; additional restrictions are possible6

Who to call

Building permits

Town of Silt Community Development Department

Residential building applications, building and planning review, and questions about town zoning and building placement.

(970) 876-2353 ext. 110

231 North 7th Street

Septic permits

Garfield County Public Health, Environmental Health Division

Onsite wastewater treatment system applications and current county septic requirements.

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 Town of Silt means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in the Town of Silt, CO?

For a new stick-built home in Silt, use the town’s residential building-permit application, which provides for building and planning approval.1 Silt has adopted a residential code with local amendments for detached single-family and two-family homes and qualifying townhouses.7 Ask Community Development to confirm the applicable code edition before commissioning plans.1

Silt’s Board of Trustees adopts an annual building-permit fee schedule by resolution; ask the town for the schedule applicable to your project.4 We could not confirm a Silt owner-builder exemption; ask Community Development about town construction permitting and contractor requirements.1

Who handles building and zoning review in the Town of Silt?

Silt’s Community Development Department receives the final residential plan submission, and the town application includes building and planning approval.1 Call the contact on the residential application for questions about the building checklist and the zoning requirements for placement of a structure.1

Silt’s typical residential plan review averages 10 weeks, but workload and project complexity affect timing.3 Missing information, incorrect designs and requests for additional information can delay review or move an application behind newer applications.3 Allow for that review period when arranging construction financing or a builder’s start date.3

Does the Town of Silt have zoning, lot-size and setback rules?

Silt’s residential application requires applicants to identify their zone district or planned unit development and comply with town zoning requirements for building placement.1 Ask Community Development for the parcel’s residential setbacks, lot coverage and height requirements before settling on a house footprint.1 We could not confirm a general residential minimum lot size for Silt; ask the same department for the rule in the specific district.1

In Silt’s Agricultural-Rural district, barns, paddocks and stalls must be at least 40 feet from all property lines and screened from adjoining properties with landscaping or fencing as determined by the town.5 That animal-structure setback does not establish a general setback for a house.5

How do septic permits work inside the Town of Silt?

Garfield County Public Health handles onsite wastewater treatment system applications, including new installations, repairs and alterations within its municipal jurisdiction.2 An application requires a completed site and soil evaluation, system design and site plan.2 The listed application fee is $600 for a new installation or major repair, and $200 for a minor repair or system alteration.2

A county septic permit cannot be issued where a municipality or special district provides public sewer service unless sewer service is infeasible or otherwise authorized.8 Confirm the proposed Silt parcel’s sewer-service situation with the town before paying for a septic design, then ask Public Health about any applicable exception.8

Can you live in an RV or tiny home in the Town of Silt?

We could not confirm whether Silt allows residential RV occupancy on a private parcel, or how the town treats tiny-home occupancy; ask Community Development about the proposed structure and use in the parcel’s zone district.1 Silt requires building applicants to comply with town zoning and building-placement requirements, so a small footprint alone does not establish approval.1

We also could not confirm whether non-OWTS off-grid sanitation is allowed inside Silt; ask Community Development and Garfield County Public Health about the proposed arrangement.19 Where public sewer service is provided, the county’s restriction on issuing septic permits is a separate constraint on an off-grid plan.8

What are the steps to building a home in the Town of Silt?

Start by asking Silt Community Development to identify the parcel’s zoning district and applicable building-placement requirements.1 Next, confirm sewer service before commissioning a septic design, because county septic approval is restricted where public sewer service is provided.8

Prepare the town’s residential submission: construction drawings, landscaping and drainage plans, soils report, engineered foundation design, completed application, deposit and homeowners’ association approval where applicable.1 For Silt driveways longer than 75 feet, plan at least 12 feet of width and a turnaround allowing forward-facing entry and exit.10 Silt flood-hazard provisions follow the stricter town or residential-code requirements, and the Building Official may impose additional restrictions.6

For a parcel outside town limits, use the Garfield County guide for the county’s unincorporated-area building requirements.11

Watch-outs

  • Silt’s typical 10-week residential plan review is an average, not a guaranteed approval deadline.3
  • Garfield County’s public-sewer restriction can prevent septic approval even where a buyer would prefer an off-grid system.8
  • We could not confirm a well-permit answer for land inside Silt; ask Community Development to identify the appropriate water-permitting contact before buying land for a well-dependent home.1

Sources

  1. Town of Silt Community Development Department (townofsilt.org)
  2. Onsite wastewater treatment systems (OWTS), quoted and re-checked
  3. 2025 Single Family Dwelling Permit Application (Town of Silt), quoted and re-checked
  4. 15.04.020 - Amendments to the adoption of the 2015 International Residential Code (Town of Silt), quoted and re-checked
  5. 17.14.010 - Agricultural-Rural intensity of permitted use regulations (Town of Silt), quoted and re-checked
  6. 15.04.020 - Amendments to the adoption of the 2015 International Residential Code (Town of Silt), quoted and re-checked
  7. 15.04.010 - 2015 International Residential Code adopted (Town of Silt), quoted and re-checked
  8. garfieldcountyco.gov, quoted and re-checked
  9. Garfield County Public Health, Environmental Health Division (garfieldcountyco.gov)
  10. townofsilt.org (Town of Silt), quoted and re-checked
  11. garfieldcountyco.gov, quoted and re-checked

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 Town of Silt

Town of Silt’s own rules

  • Building code adoptedAdopted

    Detached one- and two-family dwellings and townhouses not more than three stories in the Town of Silt.

    • The adopted IRC is subject to amendments in Title 15.
    • The source title identifies the section as 2015 IRC adoption while subsection A states that the town adopted the 2018 IRC.
    “the town has adopted by reference as its residential code the 2018 International Residential Code”
  • SetbacksDistrict specific (with conditions)

    Barns, paddocks, and stalls in the Agricultural-Rural district.

    • The structures must be adequately screened from adjoining properties by landscaping or fencing as determined by the town.
    • This is an animal-structure setback, not a general dwelling setback.

    setback from property lines: >= 40 feet (barns, paddocks, or stalls)

    “Barns, paddocks, or stalls shall be set back a minimum of forty (40) feet from all property lines and adequately screened from adjoining properties by landscaping or fencing, as determined by the town;”
  • Driveway accessRequired

    Driveways serving residential construction inside Silt town.

    • Driveways generally must be perpendicular to the street unless the town administrator or designee approves another design based on lot size or shape.
    • Driveways over 75 feet must be at least 12 feet wide and provide forward-facing vehicle access by hammerhead, T-turnaround, or circular driveway.
    • Driveways must be maintained for structural integrity.

    long-driveway threshold: > 75 feet (minimum width and turnaround requirements apply) · long-driveway width: >= 12 feet (driveways longer than 75 feet)

    “Driveways that have a length in excess of seventy-five feet shall be designed with a minimum width of twelve feet and shall also be designed to afford all reasonably-sized vehicles to enter and exit the driveway in a forward-facing direction, by means of a hammerhead, T-turnaround or circular driveway;”
  • Building in a floodplainLimited

    Development subject to flood-hazard provisions inside Silt town.

    • Flood-hazard provisions are determined by the stricter of Silt Municipal Code §15.16 and the IRC.
    • The Building Official or designee may impose additional restrictions if warranted.
    “Flood Hazard Provisions will be determined by the stricter of Section 15.16 of the Silt Municipal Code and regulations of the IRC. If the Building Official or designee determines that additional restrictions are warranted, said restrictions will apply.”
  • Permit feesVariable (with conditions)

    Town building-permit fees inside Silt town.

    • The Board of Trustees establishes and adopts an annual fee schedule by resolution.
    “The Board of Trustees will establish and adopt, by resolution, an annual fee schedule.”
  • Permit processPublished (with conditions)

    Residential building-permit plan review inside Silt town.

    • Typical plan review averages ten weeks, but timing varies with workload and project complexity.
    • Incorrect designs, missing information, and requested additional information may delay review or place an application behind newer applications.

    typical plan review: 10 weeks (average; varies by workload and project complexity)

    “The typical Plan Review takes an average of ten (10) weeks to complete.”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemption from Town of Silt construction permitting or contractor requirements.
  • Minimum lot size — General minimum lot size for residential districts inside Silt town.
  • Lot coverage — Lot coverage inside Silt town.
  • Building height — General building-height limit inside Silt town.
  • Tiny homes — Tiny-home occupancy inside Silt town.
6 more unanswered
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • 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 Town of Silt publishes no rule on the point, not that none exists. Garfield County’s page lists the county offices to call.

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